CN105316053A - Clean production method of natural gas - Google Patents

Clean production method of natural gas Download PDF

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Publication number
CN105316053A
CN105316053A CN201410267466.8A CN201410267466A CN105316053A CN 105316053 A CN105316053 A CN 105316053A CN 201410267466 A CN201410267466 A CN 201410267466A CN 105316053 A CN105316053 A CN 105316053A
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China
Prior art keywords
ice agent
natural gas
press down
sweet natural
liquid
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CN201410267466.8A
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Chinese (zh)
Inventor
李晟贤
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Beijing Hezhong beneficial technology limited liability company
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BEIJING HAOBO WANWEI TECHNOLOGY Co Ltd
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Priority to CN201410267466.8A priority Critical patent/CN105316053A/en
Publication of CN105316053A publication Critical patent/CN105316053A/en
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Abstract

The invention discloses a clean production method of natural gas, which is composed of the following steps: (1) addition of an ice inhibitor: adding an ice inhibitor liquid or the ice inhibitor into natural gas or/and a natural gas flow channel so that the ice inhibitor liquid or the ice inhibitor is contacted or mixed with the natural gas or/and gas-phase water, liquid-phase water, ice or/and natural gas hydrates in the natural gas flow channel to form sewage containing the ice inhibitor; and (2) ventilation for water removal: evaporating the water in the ice inhibitor sewage in a ventilating manner and recycling the ice inhibitor liquid or the ice inhibitor from the ice inhibitor sewage. The method solves the problem of influence on natural gas exploitation and production due to natural hydrates or ice, can solve the problem of environment pollution and energy consumption during the natural gas exploitation and production, can eliminate safety risk in the natural gas exploitation and production, can reduce fixed investment, cost and energy consumption in the natural gas exploitation and production, is easy to carry out, is safe and reliable, is wide in application and is easy to popularize, and has significant economic benefit, environment protective benefit and safety benefit.

Description

A kind of Sweet natural gas clean preparation method
Technical field
The present invention relates to Sweet natural gas production field, especially relate to a kind of Sweet natural gas clean preparation method.
Background technology
The technical scheme that patent ZL200910143671.2 discloses " a kind of natural gas exploiting method of cleaning ", realizes its goal of the invention by invention steps such as " add alkali regeneration " and " ventilation anhydrate point ".But there is following defect in this patent:
1) the described technical scheme of this invention must could by " production waste " finally regeneration " but ice agent liquid " by the acting in conjunction of " add alkali regeneration " and " ventilation anhydrate point " two key inventive steps.Although the precedence of these two invention steps in this invention different technologies scheme is different, or first by after " production waste " " add alkali regeneration " again " ventilation anhydrate point ", or first " add alkali regeneration " again by after " production waste " " ventilation anhydrate point ", but " adding alkali regeneration " and " ventilation anhydrate point " two steps are indispensable.Because " add alkali regeneration " is a more complicated industrial step (or operation), need specific equipment, facility, " alkaline matter " and related investment, working cost just can complete, the cost that " production waste " final regeneration therefore must be caused " to press down ice agent liquid ", costly.
From knowledge known in this field: when gas field produces Sweet natural gas, general first by pressing down ice agent, press down ice agent liquid, frostproofer, prevention and control agent to add in gas well or gathering pipeline and to mix with moisture wherein, and then in gas gathering station by separatory (being commonly called as a point water) step and separating device, by the liquid water in Sweet natural gas and add pressing down ice agent, press down ice agent liquid in gas well or gathering pipeline, frostproofer, prevention and control agent separate, and forms production waste.
From knowledge known in this field: domestic at present not with not adding the ventilation method of evaporating of alkali from containing but reclaiming the open source information and successful precedent that press down ice agent the gas field sewage of ice agent.
From knowledge known in this field: with not adding the ventilation method of evaporating of alkali from containing but isolating the cost pressing down ice agent liquid the gas gathering station production waste of ice agent, far below first adding alkali (as adding sodium carbonate) and then isolate the cost pressing down ice agent liquid with ventilation method of evaporating in this sewage from this sewage, equally also evaporate this sewage moisture far below first ventilating and then in this sewage, add alkali (as adding sodium carbonate) and isolate the cost pressing down ice agent liquid.
From knowledge known in this field: press down ice agent, press down ice agent liquid, frostproofer, prevention and control agent etc. all soluble in water; Add in gas well, gathering pipeline press down ice agent, press down ice agent liquid, frostproofer, prevention and control agent etc. generally enter in isolated production waste when gas gathering station separatory (being commonly called as a point water); Gas gathering station is the special separating device be provided with for separation of liquid water from Sweet natural gas generally, isolated production waste be the chief component of gas field sewage.
Laboratory experiment shows: by isolated for the gas gathering station production waste ventilation transpiring moisture containing pressing down ice agent, even if do not add alkaline matter in this production waste, equally can this production waste is concentrated (or regeneration) become can add application for gas well or gathering pipeline press down ice agent liquid.
2) the described technical scheme of this invention does not relate to and indicates in gas gathering station (or near gas gathering station) direct method that " production waste " regeneration " is pressed down ice agent liquid " on the spot.
From knowledge known in this field: the domestic at present successful precedent that " production waste " regeneration directly " is not pressed down ice agent liquid " by (or near gas gathering station) in gas gathering station and open source information.
3) the described technical scheme of this invention do not relate to and indicate first in gas gathering station (or gas gathering station near) by " ventilation anhydrate point " " concentrating " " production waste " volume, and then the method that " production waste " delivers to the further regeneration of concentrated website " but ice agent liquid " will be somebody's turn to do; Also do not relate to and indicate first in gas gathering station (or gas gathering station near) by " add alkali regeneration and ventilation anhydrate point " " concentrating " " production waste " volume, and then the method that " production waste " delivers to the further regeneration of concentrated website " but ice agent liquid " will be somebody's turn to do; Thus cause " production waste " to transport and cost that final regeneration " presses down ice agent liquid ", costly.
From knowledge known in this field: domestic natural gas is produced and mainly adopted gas gathering station (also known as test satellite location, be commonly called as small station) gathering production method, this production method can be summed up and be summarised as: Sweet natural gas from gas well out after, first enter gas gathering station by gathering pipeline (also known as lease line) to measure, separatory (being commonly called as a point water), collect, and then continue on to natural gas purification processing factory (being commonly called as major station) process further by gas gathering station external transport pipeline (also known as pipeline between station), the last long-distance transport pipes (also known as external transport pipeline) that pass through again are delivered to remote client.
From knowledge known in this field: because gas field area is very large, have thousands of up to ten thousand mouthfuls of gasser, the gas gathering station of One's name is legion often will be built in 1 gas field for this reason; These gas gathering stations all have separatory function usually, and every day will isolate a small amount of liquid water (also known as sewage) from Sweet natural gas; Because the isolated sewage quantity of institute is less, be generally no more than 10 sides/day, being delivered to sewage work or natural gas purification processing factory with pipeline needs higher fixed investment, therefore the general mode roping adopting Automobile Transportation at present.
For Ordos Basin gas field: this gas field is across Shaanxi, Inner Mongol, several counties and cities, Ningxia, and area is huge, has up to ten thousand mouthfuls of gasser at present, up to a hundred gas gathering stations; Because natural gas purification processing factory and sewage work invest huge, this gas field only has several natural gas purification processing factory and sewage work; Major part gas well, distance natural gas purification processing factory of gas gathering station or the haul distance of sewage work are more than 50 kilometers, and the haul distance of distance natural gas purification processing factory of some gas wells, gas gathering station or sewage work is even more than 200 kilometers; Overwhelming majority gas well water yield per day is lower than 0.5 side/day, and the isolated sewage quantity of most of gas gathering station is lower than 5 sides/day; Therefore, this gas field mainly adopts the mode of Automobile Transportation that isolated for gas gathering station sewage is transported to sewage work or natural gas purification processing factory focuses at present.
To extend gas field: although this gas field has many gas gathering stations, only have 1 sewage work for reducing fixed investment; 1, this gas field gas gathering station generally collects the Sweet natural gas that 5 ~ 10 implication wells produce, average 1 mouthful of well daily output sewage quantity is less than 0.2 ton per day, 1 average water yield per day of gas gathering station less than 2 ton per days, if gas gathering station sewage transport to sewage work is needed huge fixed investment with pipeline; This gas field all adopts the method for truck tank transport at present, gas gathering station is produced sewage roping to sewage work and focuses on; Because the haul distance of this distance sewage work of gas field gas gathering station is generally more than 50 kilometers, the haul distance of distance sewage work of gas gathering station farthest, more than 100 kilometers, therefore needs a large amount of expense and energy consumption by the method for truck tank transport gas gathering station sewage.
From knowledge known in this field: add in gas well (or gathering pipeline) press down ice agent, press down ice agent liquid, frostproofer, prevention and control agent etc. can enter in isolated sewage when gas gathering station separatory; In order to by its recycling from sewage, need first these sewage to be transported to natural gas purification processing factory or sewage work; Thus cause press down ice agent, press down ice agent liquid, frostproofer, prevention and control agent recycling cost significantly increase.
To extend gas field: this gas field usually adds and presses down ice agent liquid in production process of natural gas in gas well (or gathering pipeline); Gas gathering station isolated liquid water (i.e. sewage) containing pressing down, the concentration of ice agent is minimum reaches 1wt%; From knowledge known in this field, in order to reduce dosing cost and chemical feeding quantity, add in gas well (or gathering pipeline) to press down ice agent strength of fluid more high better, the general concentration containing pressing down ice agent should not lower than 20wt%; Calculating further accordingly and show: reusing containing the ice agent liquid that presses down pressing down ice agent 20wt% to reclaim 1 ton from gas gathering station sewage, need 20 tons of gas gathering station sewage truck tank transports 50 ~ 100 kilometers to sewage work, need the tank car of 10 tons to transport 2 times, round 200 ~ 400 kilometers for this reason, need freight charges and the energy consumption of at substantial.
From knowledge known in this field: because gas well disperses very much, many gas wells adopt well head medicine-adding method, and the added ice agent liquid that presses down mainly uses Automobile Transportation, presses down the higher then freight charges of ice agent strength of fluid, energy consumption is lower; Although adopt gas gathering station not need Automobile Transportation to the method for gas well dosing, need pumping, the energy consumption, the expense that press down the higher then pump of ice agent liquid are lower.
4) the described technical scheme of this invention does not indicate from the concrete grammar containing recovery inhibiter, water discharge agent, Scale inhibitors, sand washing agent, well control fluid and recycling thereof " production waste " that press down ice agent, do not relate in gas gathering station (or near gas gathering station) directly from containing the method reclaiming inhibiter, water discharge agent, Scale inhibitors, whipping agent, sand washing agent, well control fluid " production waste " that press down ice agent yet, do not relate to yet never containing but reclaim the method for inhibiter, water discharge agent, Scale inhibitors, sand washing agent, well control fluid and recycling thereof in the gas field sewage of ice agent.
From knowledge known in this field: in production process of natural gas, usually will add inhibiter, water discharge agent, Scale inhibitors in gas well (or gathering pipeline), these inhibiter, water discharge agent, the Scale inhibitors overwhelming majority when gas gathering station separatory enters in isolated sewage; But, at present domestic never containing press down ice agent gas field sewage in reclaim inhibiter, water discharge agent, Scale inhibitors and recycling successful precedent, also not from containing reclaiming inhibiter, water discharge agent, Scale inhibitors the successful precedent of recycling the gas field sewage pressing down ice agent, also not in gas gathering station (or gas gathering station near) directly from containing reclaiming inhibiter, water discharge agent, Scale inhibitors the successful precedent reused the gas field sewage pressing down ice agent.
From knowledge known in this field: in production process of natural gas, in order to carry out gas well borehole operation, usually well control fluid to be added in gas well, and then be disposed to ground environment from well head by the sewage that these well control fluids are formed, or again these well control fluids are separated into production waste by gas gathering station separating device; But well control fluid is not reclaimed and the successful precedent of recycling in current domestic gas field from production waste, also in gas gathering station, (or near gas gathering station) does not directly reclaim well control fluid and the successful precedent of recycling from sewage.
From knowledge known in this field: in production process of natural gas, in order to the silt in Wellbore of Gas Wells is discharged pit shaft, usually the sand cleaning fluid (or antifreeze sand cleaning fluid) of sand washing agent (antifreeze sand washing agent) and water preparation will be added in gas well, and then be disposed to ground environment from well head by the sewage that these sand cleaning fluids (or antifreeze sand cleaning fluid) are formed, or again these sand cleaning fluids (or antifreeze sand cleaning fluid) are separated into production waste by gas gathering station separating device; But, sand washing agent (or antifreeze sand washing agent) is not reclaimed and the successful precedent of recycling in current domestic gas field from production waste, and also in gas gathering station, (or near gas gathering station) does not directly reclaim sand washing agent (or antifreeze sand washing agent) and the successful precedent of recycling from sewage.
5) the described technical scheme of this invention does not relate to and indicates from containing reclaiming the method pressing down ice agent and inhibiter (or water discharge agent or Scale inhibitors) " production waste " that press down ice agent simultaneously.
6) the described technical scheme of this invention does not relate to from containing reclaiming the solid-state method pressing down ice agent, press down ice agent solid-liquid mixtures or solid-state pharmacy post " production waste " but of ice agent.
7) the described technical scheme of this invention do not relate to conbined usage ventilate and type of heating from containing recovery " production waste " that press down ice agent but the method for ice agent liquid.
From knowledge known in this field: after first being concentrated by gas gathering station production waste method of ventilation, transportation volume can significantly reduce, then the expense being transported to concentrated website will significantly reduce; Reheat transpiring moisture reclaim press down the energy consumption of ice agent liquid, expense can significantly reduce equally.
To extend gas field: its ice agent liquid that presses down adding gas well is generally not less than 20wt% containing the concentration pressing down ice agent, its gas gathering station isolated liquid water (i.e. sewage) containing pressing down, the concentration of ice agent is minimum reaches 1wt%, the maximum haul distance of its distance sewage work of gas gathering station is more than 100 kilometers; Calculate known accordingly, if will containing press down ice agent concentration 1wt% gas gathering station sewage directly with automobile transportation to sewage work, with heating means evaporate its moisture, reclaim wherein press down ice agent liquid, then reclaim 1 ton to need to transport round 400 kilometers of 20 tons of sewage with tank car containing the ice agent liquid that presses down pressing down ice agent 20wt%, and need heating evaporation 18 tons of sewage, need to consume huge energy consumption for this reason; But, if first will containing pressing down the gas gathering station sewage of ice agent concentration 1wt% at gas gathering station natural ventilating method evaporation section moisture, be condensed into the sewage containing pressing down ice agent concentration 5wt%, and then with automobile transportation to sewage work, then reclaim 1 ton only to need to transport round 200 kilometers of 4 tons of sewage with tank car containing the ice agent liquid that presses down pressing down ice agent 20wt%, and only needing heating evaporation 3 tons of sewage, heating energy consumption significantly will reduce by more than 83%.
8) the described technical scheme of this invention does not relate to and presses down the method for ice agent liquid by solar heating (or Exposure to Sunlight) mode from containing reclaiming " production waste " that press down ice agent, do not relate to yet conbined usage ventilate and solar heating (or Exposure to Sunlight) mode from containing recovery " production waste " that press down ice agent but the method for ice agent liquid.
From knowledge known in this field: sunlight (or sun power) can heating liquid, can vaporize water; Significantly be greater than by the speed of sunlight (or sun power) and ventilation integrated processes evaporation sewage moisture the speed that single ventilation method evaporates sewage moisture, be also significantly greater than the speed of single solar heating (or Exposure to Sunlight) method evaporation sewage moisture; Gas gathering station is in field environment, has sufficient sunlight (or sun power) available.
9) the described technical scheme of this invention does not relate to and presses down what reclaim in " production waste " the method that ice agent liquid is used as other purposes.
10) the described technical scheme of this invention does not indicate the concrete grammar utilizing and produce organic salt, inorganic salt, mineral alkali containing " production waste " that press down ice agent.
From knowledge known in this field: contain in the production waste pressing down ice agent and there is a large amount of alkali metal formate or acetate, the raw material producing organic salt, inorganic salt, mineral alkali can be used as, the method for ventilation transpiring moisture can be utilized to produce organic salt, inorganic salt, mineral alkali; Such as, the production waste containing potassium formiate, can be used as the raw material producing calcium formiate, potassium sulfate, potassium hydroxide, also can produce calcium chloride, sodium-chlor, Repone K, calcium formiate, sodium formiate, potassium formiate etc. by the method for ventilation transpiring moisture.
From knowledge: calcium formiate, potassium sulfate, potassium hydroxide, calcium chloride, sodium-chlor, Repone K range of application are extremely extensive.
11) the described technical scheme of this invention does not relate to and the ice agent liquid that presses down indicated containing pressing down ice more than agent 20wt% adds the method for inhibiter, does not also relate to and indicate pressing down containing what press down ice below agent 20wt% the method that ice agent liquid adds more than 4wt% inhibiter.
From knowledge: inhibiter has surfactivity, by liquid hydrocarbon (the being commonly called as lightweight oil) emulsification in gas field sewage, can effectively prevent gas hydrate blocking pipeline; But, but domestic open precedent or the open source information not adding inhibiter at present and suppress gas hydrate in more than 20wt% ice agent liquid, does not also press down in ice agent liquid at below 20wt% the open precedent or the open source information that add more than 4wt% inhibiter and suppress gas hydrate.
12) the described technical scheme of this invention does not relate to, the ice agent liquid that presses down indicated containing pressing down ice more than agent 20wt% adds the method for foaming water discharge agent, does not also relate to, indicates and press down containing what press down ice below agent 20wt% the method that ice agent liquid adds more than 2wt% foaming water discharge agent.
From knowledge: foaming water discharge agent has surfactivity, by liquid hydrocarbon (the being commonly called as lightweight oil) emulsification in gas field sewage, can effectively prevent gas hydrate blocking pipeline; But, but domestic open precedent or the open source information not adding foaming water discharge agent at present and suppress gas hydrate in more than 20wt% ice agent liquid, does not also press down in ice agent liquid at below 20wt% the open precedent or the open source information that add more than 2wt% foaming water discharge agent and suppress gas hydrate.
13) the described technical scheme of this invention does not relate to and is pressing down in ice agent liquid the method for adding water-soluble polymer liquid and suppressing hydrate.
From knowledge: water-soluble polymer can effectively prevent gas hydrate blocking pipeline; But but domestic at present do not have add water-soluble polymer liquid for suppressing open precedent and the open source information of gas hydrate in ice agent liquid.
14) the described technical scheme of this invention does not relate to from the method containing recycle-water soluble macromolecular liquid and recycling thereof " production waste " that press down ice agent, do not relate to yet never containing but the method for recycle-water soluble macromolecular liquid and recycling thereof in the gas field sewage of ice agent.
From knowledge: domestic open precedent and the open source information not having the recyclings such as solid-state pharmacy post, inhibiter at present.
In a word, above-mentioned public technology scheme and all numerous existing defects of existing Sweet natural gas production technology.
Summary of the invention
" gas hydrate " in the present invention: be called for short hydrate.
" natural gas runner " in the present invention: refer to the passage that natural gas fluid flows through, can natural gas line be referred to, also can refer to the passage that the natural gas fluid such as gasser, pit shaft, well head, valve, under meter, throttling element, pipe fitting, separator flow through.
" natural gas fluid " in the present invention: also known as natural gas flow, is called for short air-flow; " natural gas fluid " can refer to single gaseous fluid, also can refer to solution-air two-phase mixture fluid, also can refer to gas-liquid-solid multiphase mixture fluid; " natural gas fluid " can contain moisture (as containing vaporous water, liquid water, crystal ice granule water).
" gas gathering station " in the present invention: also known as gas collection test satellite location or test satellite location, be commonly called as small station; Refer to terrestrial station (or field) point collecting more than 2 mouthfuls gas well institute producing natural gas; The basic function of " gas gathering station " is metering individual well gas production or wall scroll " gathering pipeline " gas discharge; Major part " gas gathering station " also has the basic function (being commonly called as separatory) isolating " gathering pipeline " interior liquid; " gas gathering station " that have also has heating (namely improving natural gas temperature), reducing pressure by regulating flow (namely reducing gas pressure by throttle style), dehydration (namely removing the moisture in Sweet natural gas), dewfall point (namely reduce gas dew point, be commonly called as drying) function; " gas gathering station " that have also has supercharging (namely increasing gas pressure) function.
" gathering pipeline " in the present invention: also known as lease line, refers to the natural gas line between gas well to " gas gathering station "; " gathering pipeline " that have only carries the Sweet natural gas of 1 implication well, and " gathering pipeline " that have collects and carry the Sweet natural gas of more than 2 mouthfuls gas wells.
" between standing pipeline " in the present invention: also known as gas gathering station or test satellite location external transport pipeline, refers to the natural gas line between " gas gathering station " to natural gas purification processing factory.
" natural gas purification processing factory " in the present invention: also known as natural gas purification processing station (or field), is called for short purification plant or treatment plant, is commonly called as central treatment station or major station; Refer to the Sweet natural gas that collects more than 2 " gas gathering stations " and carry out concentrating terrestrial station (or field) point of purification, dehydration, the process of dewfall point to it; " natural gas purification processing factory " is usually responsible for focusing on of 1 gas field or 1 gas field block Sweet natural gas; " the natural gas purification processing factory " that have also will carry out the process such as depickling gas (as carbon dioxide removal, hydrogen sulfide), desulfurization (as removing hydrogen sulfide), supercharging to collected Sweet natural gas; " the natural gas purification processing factory " that have also will focus on the production waste transported with vehicle transport or pipeline from " gas gathering station ".
" gas field sewage " in the present invention: also known as Sweet natural gas sewage, production waste, gas well sewage, gas gathering station sewage, natural gas line sewage etc., is called for short sewage; Refer to the sewage produced in Natural gas extraction production process, be mainly derived from underground gas-bearing formation; " gas field sewage " can refer to from the isolated liquid water of gas gathering station or oil-water mixture, also can refer to from " natural gas purification processing factory " isolated liquid water or oil-water mixture, also can refer to the liquid water that goes out from gas well, well site pipeline, device separates or oil-water mixture; " gas field sewage " general salinity is higher, containing a large amount of mineral ion (as sodium ion, chlorion, calcium ion, magnesium ion, bicarbonate radical etc.); " gas field sewage " that have chemical agent additional in external or production process containing one or two or more kinds (pressing down ice agent, water discharge agent, inhibiter, Scale inhibitors, sand washing agent, well control fluid etc. as additional in producing), " gas field sewage " that have is containing liquid hydrocarbon (being commonly called as lightweight oil) or emulsifying hydrocarbon (being commonly called as oil in water emulsion).
" gas production auxiliary agent " in the present invention: refer to the functional chemical agent for Natural gas extraction production process; Comprise and press down ice agent, inhibiter, water discharge agent, Scale inhibitors, sand washing agent, any one or the mixture of any two or more arbitrary proportion among them in well control fluid.
" functional chemical agent " in the present invention: refer to the general designation with all kinds of chemical agents of specific function added in Sweet natural gas is produced, as " pressing down ice agent ", " inhibiter ", " water discharge agent ", " Scale inhibitors ", " sand washing agent " etc. in the present invention, all can be referred to as " functional chemical agent ".
" pressing down ice agent " in the present invention: also known as frostproofer, prevention and control agent, unblocking agent, defrosting agent, anti-blocking agent, hydrate control auxiliary agent, belong to the one of hydrate inhibitor for natural gas (abbreviation inhibitor); The major function (basic function) of " press down ice agent " be suppress the generation of gas hydrate or ice, grow up, coalescence, prevent the mixture of gas hydrate, ice or ice and gas hydrate from blocking natural gas line, gas well; The major function (basic function) of " press down ice agent " also can be the mixture melting gas hydrate, ice or ice and gas hydrate, or the natural gas line that blocked by the mixture of gas hydrate, ice or ice and gas hydrate of dredging releasing or gas well; Can be in a liquid state under " but ice agent " normal temperature and pressure, can, in solid-state, also can be also solid-liquid mixtures state.
" inhibiter " in the present invention: generally referring to the chemical agent for slowing down gas well, natural gas line and equipment corrosion speed, can be in a liquid state under " inhibiter " normal temperature and pressure also can be solid-state or solid-liquid mixtures.
" water discharge agent " in the present invention: also known as foaming water discharge agent, foam discharging agent, whipping agent, azeotropic agent, generally refers to the chemical agent that can produce a large amount of foam in gas well; Can be in a liquid state under " water discharge agent " normal temperature and pressure, also can be solid-state or solid-liquid mixtures.
" Scale inhibitors " in the present invention: also known as corrosion inhibiting and descaling agent, anti-incrustation corrosion inhibitor, scale remover, generally refer to the chemical agent for slowing down gas well, natural gas line and equipment scaling speed, can be in a liquid state under " Scale inhibitors " normal temperature and pressure, also can be solid-state or solid-liquid mixtures.
" sand washing agent " in the present invention: also known as taking husky agent, whipping agent, generally refers to the chemical agent for preparing sand cleaning fluid (also known as sand washing water, taking husky liquid); The major function (basic function) of " sand washing agent " and " sand cleaning fluid " can produce a large amount of foam in gas well, the silt in pit shaft can be carried out gas well.
The technical problem to be solved in the present invention is to provide a kind of Sweet natural gas clean preparation method.The method overcome the deficiency of existing natural gas production method, effectively can solve gas hydrate or ice and affect the problem that Natural gas extraction produces, effectively can solve environmental pollution and the energy consumption issues of Natural gas extraction production, can effectively eliminate Natural gas extraction produce potential safety hazard, can significantly reduce Natural gas extraction produce fixed investment, cost, energy consumption, from air consumption, management workload; Have and implement easily, safe and reliable, be widely used, promote the excellent features such as easy; Economic benefit, environmental benefit and safety benefit are remarkable.
For solving above-mentioned first technical problem, a kind of Sweet natural gas clean preparation method of the present invention, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, press down ice agent liquid or but ice agent to recycle to press down in ice agent sewage.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent; Preferably, described press down contained by ice agent liquid to press down ice agent content be 1-78wt%.
Further, step 1) in, the described ice agent liquid that presses down refers to the solidliquid mixture containing and press down ice agent.
Further, step 1) in, described press down ice agent and refer to or to comprise under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
The described ice agent sewage that presses down refers to the sewage containing and press down ice agent, can refer in Sweet natural gas containing the water pressing down ice agent, also can to refer in the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing pressing down the water of ice agent, also can refer to separate from the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing the sewage (or claiming production waste) pressing down ice agent; Also can refer to from Sweet natural gas surface production, accumulating website (as gas gathering station, test satellite location, treatment plant etc.) separate containing pressing down the sewage of ice agent;
Described water can refer to vaporous water, also can refer to liquid water or solid water (as ice crystal, gas hydrate crystal).
From knowledge known in this field: under normal temperature and pressure in solid-state pressing down ice agent (as potassium formiate crystal), press down the ice agent aqueous solution (as the potassium formiate aqueous solution), press down ice agent solid-liquid mixtures (as potassium formiate-water solidliquid mixture) and all effectively can suppress being formed of hydrate and ice, all can add in natural gas runner.
From knowledge known in this field: commodity are general in solid-state (in particulate state or sheet as commodity potassium formiate) under pressing down ice agent normal temperature and pressure.
From knowledge known in this field: the Sweet natural gas produced from gas well exploitation generally contains liquid water or vaporous water, is referred to as water or moisture.Some Sweet natural gases contain ice crystal or gas hydrate crystal, and some Sweet natural gases are also containing the hydrocarbon (referred to as liquid hydrocarbon) be in a liquid state under normal temperature and pressure; Gas hydrate crystal is formed jointly by water molecules and natural gas molecule (as methane molecule, ethane molecule), the dissociable Cheng Shui of gas hydrate crystal and Sweet natural gas; For making Sweet natural gas normal outer defeated, the vaporous water in Sweet natural gas, liquid water, ice crystal, gas hydrate crystal and liquid hydrocarbon must be separated from Sweet natural gas; The water separated from Sweet natural gas is generally in a liquid state, and is usually referred to as sewage (also known as production waste or gas field sewage); The liquid hydrocarbon separated from Sweet natural gas is commonly called as lightweight oil, and some liquid hydrocarbon separated is at normal temperatures and pressures in emulsified state (referred to as emulsifying hydrocarbon); Be ripe Natural gas extraction production technology by the method that water, liquid hydrocarbon are separated from Sweet natural gas, method water and liquid hydrocarbon separated also is ripe Natural gas extraction production technology; The emulsifying hydrocarbon separated from Sweet natural gas is generally separated into sewage and liquid hydrocarbon more further, and method emulsifying hydrocarbon being separated into sewage and liquid hydrocarbon is also ripe Natural gas extraction production technology.
From knowledge known in this field: press down ice agent or press down the water absorbability of the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) strong, the water (such as water vapor or liquid water) in Sweet natural gas can be absorbed, reduce the water dew point of Sweet natural gas; Press down ice agent (as potassium formiate) very easily water-soluble, the solubleness in water is far above its solubleness in oil; Press down the ice agent aqueous solution (as the potassium formiate aqueous solution) very easily miscible with water; Pressing down ice agent or pressing down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) in natural gas runner add Sweet natural gas or/and can melt Sweet natural gas or/and gas hydrate, ice in natural gas runner; Add Sweet natural gas or/and in natural gas runner press down ice agent or press down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) inevitable with Sweet natural gas or/and together with liquid water in natural gas runner is miscible in automatically; When Sweet natural gas or/and the water in natural gas runner is from Sweet natural gas or/and when separating natural gas runner, add Sweet natural gas or/and in natural gas runner press down ice agent or press down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) inevitable with Sweet natural gas or/and separate together with water in natural gas runner, form the sewage containing pressing down ice agent; When emulsifying hydrocarbon is separated into sewage and liquid hydrocarbon, pressing down ice agent (as potassium formiate or the potassium formiate aqueous solution) and must enter in sewage contained by it, formed containing pressing down the sewage of ice agent.
Shop experiment shows: containing pressing down pressing down the ice agent aqueous solution and all effectively can reducing the freezing point of water of ice agent 1 ~ 75wt%, all effectively can suppress the generation of gas hydrate and ice.
From knowledge: press down ice agent (as potassium formiate) economic worth higher, have wide range of applications.
Shop experiment shows: with method of ventilation from containing press down ice agent sewage reclaim press down ice agent liquid, and with ventilate and the method for any associating of heating from pressing down ice agent crystal containing what reclaim the sewage pressing down ice agent, press down ice agent-water solidliquid mixture and all can again add in gas well or gathering pipeline, all can effectively prevent the natural G&W in gas well or gathering pipeline from forming gas hydrate or ice.
For the concentrated sewage extending gas field gas gathering station and contain potassium formiate that ventilates.
Laboratory experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 1wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out; Get the upper transparent sewage 200ml that potassium formiate content is about 1wt% and be placed in furnace pot, in temperature 0 ~ 10 DEG C, humidity 45 ~ 65% and without under the outdoor experiment condition of direct sunlight illumination, with natural ventilating method evaporation 5 ~ 10 days, sewage volume in furnace pot will be reduced to 40ml by 200ml reduction, is namely condensed into the potassium formiate aqueous solution that potassium formiate content is about 5wt%.Further test is as follows: this is condensed into the potassium formiate aqueous solution that potassium formiate content is about 5wt% and is divided into 2 laboratory samples, wherein 1 laboratory sample adds sodium hydroxide removal calcium ions and magnesium ions and adjusts pH value to 11, then measure its zero pour or freezing point with filter paper filtering, another 1 laboratory sample is as blank sample and measure its zero pour or freezing point; Result shows: the zero pour of 2 laboratory samples or freezing point are substantially suitable, therefore the two suppresses the effect of gas hydrate or ice, thawing gas hydrate or ice substantially suitable, all can again add in gas well or gathering pipeline for suppressing gas hydrate or ice; That is whether the potassium formiate aqueous solution being about 5wt% by the potassium formiate content of the upper transparent sewage concentration containing potassium formiate adds the effect that sodium hydroxide does not affect its suppression gas hydrate or ice.
From knowledge known in this field: domestic gas well, the sewage that gas gathering station produces had is limpid transparent; Sewage that some gas wells, gas gathering station produce is muddy opaque and containing a large amount of tiny solid particle (as formation sands, mud, dirt crystalline substance, iron rust etc.), as Sebei Gas Field, qinghai gas well goes out husky serious, sewage that gas well produces contains a large amount of mud (clay), flour sand; Muddy opaque sewage, after natural quiescent setting, is namely layered as transparent sewage and throw out; Gas well, gathering pipeline to pressing down the transparency of ice agent liquid (as potassium formiate or the potassium formiate aqueous solution), solid content, solid substance geometrical dimension (as particle diameter) be not particularly limited, the foreign matter content pressing down ice agent is also not particularly limited; By muddiness press down ice agent liquid (the potassium formiate aqueous solution as muddiness) or containing a small amount of fine particle, solid substance press down ice agent liquid (as containing a small amount of sodium-chlor, calcium chloride the potassium formiate aqueous solution) add in gas well, gathering pipeline be allow, by sodium chloride-containing, calcium chloride impurity press down ice agent add in gas well, gathering pipeline be also allow.
From knowledge known in this field: domestic at present have the open application precedent and open source information that are directly added in gas well, gathering pipeline by calcium chloride water and suppress gas hydrate or ice; The production waste that gas well, gas gathering station produce is mainly from stratum, and salinity is higher, and itself is containing mineral substance such as a large amount of calcium magnesium sodium, if the salinity of Sulige gas field gas gathering station of Soviet Union production waste is up to 40000 ~ 80000mg/L; Gas well, gathering pipeline are not particularly limited the content of mineral substances such as calcium magnesium sodium in ice agent (as the potassium formiate aqueous solution) that press down added wherein, by containing the mineral substance such as calcium magnesium sodium to press down that ice agent liquid (the potassium formiate aqueous solution as calcium-magnesium-containing sodium ion) adds in gas well, gathering pipeline be permission; Press down the content of mineral substances such as the calcium magnesium sodium in ice agent and do not affect the beneficial effect pressing down ice agent and suppress hydrate or ice, also do not affect it and add beneficial effect in natural gas runner.
From knowledge known in this field: 20 DEG C of calcium formiate solubleness are 16.6g/100g, 20 DEG C of magnesium formiate solubleness are 14.4g/100g, and calcium formiate or the magnesium formiate aqueous solution all effectively can reduce the freezing point of water, effectively can suppress gas hydrate; Even if after being all converted into calcium formiate or magnesium formiate containing the potassium formiate in the transparent gas field sewage of potassium formiate 5wt%, calcium formiate or magnesium formiate solid also can not be separated out, still can effectively suppress gas hydrate and ice.
From knowledge known in this field: the ice agent liquid (as the potassium formiate aqueous solution) that presses down reclaimed from the sewage of 1 implication well (or pipeline) can be used in suppressing hydrate or ice in another 1 implication well (or pipeline), gas well, gathering pipeline to add wherein press down ice agent liquid or press down the source of ice agent, the mode of production is not particularly limited.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Described aid for preventing and controlling natural gas hydrate refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
From knowledge known in this field: urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, volatile salt is all very easily water-soluble, all effectively can reduce the freezing point of water, the mixture of any one or the mixing of two or more arbitrary proportion in the inorganic salt of magnesium soluble in water under the nitrate of potassium, sodium, rubidium, caesium, ammonium, carbonate, villaumite, supercarbonate, vitriol and normal temperature, calcium, zinc, manganese all can add in aqueous solution of urea for suppressing gas hydrate.
From knowledge known in this field: although technical scheme discloses the scheme of the alkaline matters such as potassium hydroxide, sodium hydroxide, salt of wormwood described in patent document ZL200910143671.2, not indicating such alkaline matter can independently as pressing down ice agent use to prevent from being formed the technical scheme of gas hydrate or ice; Gas well institute producing natural gas generally containing sour gas such as carbonic acid gas, adds alkaline matter and is conducive to pipeline pit shaft slowing down corrosion; Gas well, natural gas line allow to add the alkaline matters such as potassium hydroxide, sodium hydroxide, salt of wormwood.
From knowledge known in this field: current useful calcium chloride suppresses the open precedent of gas hydrate, but domesticly also do not use magnesium chloride at present, the open precedent of sodium chloride inhibition gas hydrate, also not from chloride containing calcium, magnesium chloride, calcium chloride is recycled in the gas field sewage of sodium-chlor, magnesium chloride, the precedent of sodium-chlor and open source information, will from chloride containing calcium yet, magnesium chloride, the calcium chloride reclaimed in the gas field sewage of sodium-chlor, magnesium chloride, sodium-chlor adds in natural gas runner again to prevent from being formed precedent and the open source information of gas hydrate or ice.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing anti-blocking agent.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state anti-blocking agent.
Described anti-blocking agent refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
Further, step 1) in, the described ice agent liquid that presses down also can refer to and alcoholic solution containing pressing down ice agent also can refer to the alcohol ethereal solution containing pressing down ice agent.
From knowledge known in this field: potassium formiate is dissolved in ethanol; Shop experiment shows, potassium formiate is dissolved in butyl glycol ether, diethylene glycol ether, butyl, glycerine.
Further, step 1) in, but described ice agent liquid also can refer to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
From knowledge known in this field: urea is dissolved in ethanol; Shop experiment shows, urea is dissolved in butyl glycol ether, diethylene glycol ether, butyl, glycerine.
Further, step 1) in, but described ice agent liquid also can refer to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
Further, step 1) in, described presses down the aqueous solution that ice agent liquid also can refer to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is 0.1 ~ 50wt%.
Further, step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid also can refer to containing water-soluble superpolymer.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state water soluble polymer.
Described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
From knowledge known in this field: water soluble polymer effectively can suppress gas hydrate, can add in natural gas runner (as Wellbore of Gas Wells), can with potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate makes solid-state pharmacy post, urea can be added, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, in the aqueous solution of calcium lactate.
Further, step 1) in, the described ice agent that presses down also can refer to or comprise potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
Further, step 1) in, the described ice agent that presses down also can refer to or comprise potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
Further, step 1) in, the described ice agent liquid that presses down also can refer to or comprise potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water is to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent and inhibiter and Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter be added Sweet natural gas or/and in natural gas runner.
Preferably, first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described inhibiter also can refer to or comprise polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
From knowledge known in this field: inhibiter can effectively suppress gas hydrate to grow up gathering, can effectively prevent gas hydrate from blocking natural gas line; Dodecylbenzyl alkyl dimethyl ammonium chloride belongs to inhibiter, is also hydrate inhibitor for natural gas; Inhibiter with press down ice agent liquid do not produce chemical reaction.
From knowledge known in this field: but after ice agent enters Wellbore of Gas Wells, the moisture that can absorb in Sweet natural gas is formed and presses down ice agent liquid; When having liquid water in pit shaft, static pressure can be produced to Sweet natural gas, Sweet natural gas vertical flowing to well head from shaft bottom can be hindered; Press down ice agent fluid density and be greater than water, Sweet natural gas vertical flowing to well head from shaft bottom can be hindered; In gas well, add whipping agent, allowing the liquid water in Wellbore of Gas Wells form foam to reduce its static pressure is method conventional at present.
Laboratory experiment shows, presses down after ice agent liquid adds inhibiter and all can form a large amount of foam, all can reduce the density pressing down ice agent liquid, all can reduce and press down the static pressure of ice agent liquid in gas well, all be conducive to Sweet natural gas vertical flowing to well head from shaft bottom.
Further, step 1) in, ground can be risen to smoothly with Sweet natural gas to allow liquid water in gasser pit shaft and enter gathering pipeline, or in order to promote that more Sweet natural gases are from gasser output, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, whipping agent and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent be added Sweet natural gas or/and in natural gas runner.
Preferably, first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: any one cats product, nonionogenic tenside, zwitterionics all have good foaming power; Same after any one cats product or nonionogenic tenside or zwitterionics mix with any one anion surfactant have good foaming power.
From knowledge known in this field: cats product, anion surfactant, nonionogenic tenside, amphoterics all can effectively suppress gas hydrate to grow up gathering, all can effectively prevent gas hydrate from blocking natural gas line; Whipping agent with press down ice agent liquid do not produce chemical reaction.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, to press down ice agent liquid or press down ice agent, Scale inhibitors adds in Sweet natural gas or natural gas runner, allow and press down ice agent liquid or press down ice agent, Scale inhibitors with the vaporous water in Sweet natural gas or natural gas runner, liquid water, ice or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add in Sweet natural gas or natural gas runner, and then Scale inhibitors to be added in Sweet natural gas or natural gas runner.
Preferably, first Scale inhibitors is added in Sweet natural gas or natural gas runner, and then will press down ice agent liquid or press down ice agent add in Sweet natural gas or natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add in Sweet natural gas or natural gas runner simultaneously.
From knowledge known in this field: Scale inhibitors with press down ice agent liquid do not produce chemical reaction.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter is added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
From knowledge known in this field: the mixture pressing down ice agent liquid and inhibiter arbitrary proportion all can add in natural gas runner, all can effectively suppress gas hydrate or ice.
Shop experiment shows: in 57.2g clear water, add 1.8 polyvinylpyrrolidones (or poly-N-V-Pyrol RC) stirring and dissolving, and then add 40g potassium formiate stirring and dissolving, and then add 1g dodecyltrimethyl, homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Further, step 1) in, press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, whipping agent is added in described pressing down in ice agent liquid.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
From knowledge known in this field: the mixture pressing down ice agent liquid and whipping agent arbitrary proportion all can add in natural gas runner, all can effectively suppress gas hydrate or ice.
Shop experiment shows: the OP-10 stirring and dissolving adding 3g in 77g clear water, and then adds 20g potassium formiate stirring and dissolving, can make homogeneous transparent liquid, not stratified stationary indoors 72 hours.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, Scale inhibitors is added in described pressing down in ice agent liquid.
Shop experiment shows: in the potassium formiate aqueous solution of 50ml concentration 35wt%, add 50ml commodity Scale inhibitors, can form homogeneous transparent liquid, not stratified stationary indoors 72 hours.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter and whipping agent are added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: the OP-10 stirring and dissolving adding 2g in 72g clear water, and then add 25g potassium formiate stirring and dissolving, and then add 1g dodecyltrimethyl stirring and dissolving, and homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Shop experiment shows: the OP-10 stirring and dissolving adding 1g in 72g clear water, and then add 1.5g polyvinylpyrrolidone (or poly-N-V-Pyrol RC) stirring and dissolving, and then add 25g potassium formiate stirring and dissolving, and then add 1.5g dodecylbenzyl alkyl dimethyl ammonium chloride stirring and dissolving, homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Further, step 1) in, inhibiter, whipping agent, Scale inhibitors are added in described pressing down in ice agent liquid.
Shop experiment shows: will press down ice agent liquid, OP-10, dodecylbenzyl alkyl dimethyl ammonium chloride, commodity Scale inhibitors mix and chemical reaction does not occur, and can add in natural gas runner.
Further, step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Described natural ventilating method refers to and allows natural air or wind pass through the method for ventilation pressing down the ice agent sewage water surface, as allowed air pass through from containing the ice agent sewage water surface that presses down pressing down ice agent or to allow wind directly naturally blow over from pressing down the ice agent sewage water surface, etc.
Described method of ventilation of exposing to the weather refers to and allows natural air (or wind) through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage, as allowed air pass through from pressing down the ice agent sewage water surface and allow solar radiation press down ice agent sewage or allow wind directly naturally blow over from pressing down the ice agent sewage water surface and to allow solar radiation press down ice agent sewage, etc.
Described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, spray in the air as ice agent sewage will be pressed down by the method for spray or spraying, or allow press down ice agent sewage trickle in atmosphere, or allow and press down the natural ventilating method that drips in atmosphere of ice agent sewage, as utilized air height, temperature, density relationship is pressing down above ice agent sewage or construction air channel, side, chimney or other types building are to form the natural ventilating method of natural air exhaust phenomenon, air and the natural ventilating method pressing down ice agent waste water area is increased as utilized capillarity, etc..
Described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water, press down the ice agent sewage water surface as forced airflow warp with wind-powered machine (as fan) or press down the method for ventilation of ice agent sewage inside, the method of ventilation that ice agent sewage foam inside finally returns air is again pressed down as forced air or rare gas element (as nitrogen, combustion gas, stack gas, carbonic acid gas etc.) to enter with compressor, etc.
From knowledge known in this field: sunlight can heating liquid, can vaporize water; Significantly be greater than the speed with single ventilation method vaporize water by the speed of the method vaporize water of exposing to the weather, be also significantly greater than the speed with single sunlight heats method vaporize water; Gas gathering station is arranged in field environment, has sufficient sunlight, natural wind can supply to utilize.
Further, step 2) in, in order to by being used for suppressing gas hydrate or/and ice from pressing down pressing down ice agent liquid or pressing down ice agent of reclaiming in ice agent sewage, first pressing down the moisture in ice agent sewage with method of ventilation evaporation, reclaiming and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; And then reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, in order to reduce costs, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Further, step 2) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.
Further, step 2) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.
Further, step 2) in, in order to press down ice agent liquid from pressing down in ice agent sewage to reclaim, pressing down the moisture in ice agent sewage with method of ventilation evaporation, pressing down ice agent liquid to recycle to press down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Shop experiment shows: will be placed in stationary indoors and occur precipitated and separated after 1 ~ 3 day by isolated muddy sewage from prolongation gas field gas gathering station Sweet natural gas, top be transparent sewage, and bottom is throw out; Get upper transparent sewage 98.5g, then add 1.5g polyvinylpyrrolidone or poly-N-V-Pyrol RC stirring and dissolving, the aqueous solution of homogeneous transparent can be formed, and this aqueous solution is not stratified stationary indoors 24 hours; Further experiment shows, by this aqueous solution 1000g at the force ventilated method transpiring moisture of indoor electric fan to 100g, this aqueous solution is divided into 2 layers and separates out solid substance and salt crystalline substance, and upper strata is the polyvinylpyrrolidone or poly-N-V-Pyrol RC aqueous solution that viscosity is larger, and lower floor is clean and dirt water; Further experiment shows, the polyvinylpyrrolidone that upper strata viscosity is larger or poly-N-V-Pyrol RC aqueous solution can add Sweet natural gas or/and in natural gas runner, effectively can suppress gas hydrate.
Shop experiment shows: polyvinylpyrrolidone or poly-N-V-Pyrol RC aqueous solution decomposition rate is slow, still effectively can suppress gas hydrate in outdoor placement after 72 hours.
Further, step 2) in, in order to reduce from pressing down the cost recycled ice agent sewage and press down ice agent liquid, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, press down ice agent liquid to recycle to press down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then concentrated will press down ice agent sewage and deliver to another one place (or website), press down ice agent liquid to recycle concentrated pressing down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then the moisture pressed down by method of ventilation evaporation concentration in ice agent sewage, press down ice agent liquid to recycle concentrated pressing down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, in order to press down ice agent solidliquid mixture from pressing down in ice agent sewage to recycle or solid-stately press down ice agent, or press down the speed of ice agent sewage moisture to improve evaporation or reclaim the speed pressing down ice agent liquid, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, presses down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Described heating means comprise the conbined usage consuming any one heating means in the heating means (as coal-fired container heating, steam heating, oil oven heating etc.) of fuel, electrical heating method, waste-heat method, waste heating method, solar heating method or any two or more heating means; Preferably, described solar heating method refers to the heating means directly or indirectly utilizing sun power, as utilized the method for solar water heater or the heating of other solar heat collectors, the method utilizing solar exposure to heat, utilizing the method for plastics or the heating of glass booth.
From knowledge known in this field: evaporation of ventilating presses down the cost of ice agent sewage moisture far below the cost pressing down ice agent sewage moisture with heating means evaporation; Plastic greenhouse can the water on effectively heating evaporation booth inner jar, ground, and evaporated water vapor condensation liquid can be collected, is guided to outside booth.
Further, step 2) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then press down the moisture in ice agent sewage by heating means evaporation concentration in gas gathering station or near gas gathering station, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by heating means evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down ice agent sewage volume to reduce further to concentrate; And then press down the moisture in ice agent sewage by heating means evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 2) in, in order to by press down in ice agent from sewage reclaim press down ice agent liquid for the production of the solid-state solidliquid mixture pressing down ice agent or press down ice agent, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim to press down and press down ice agent liquid in ice agent sewage; Then reclaimed is pressed down ice agent liquid for the production of the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Preferably, the moisture pressed down in ice agent liquid reclaimed with heating means evaporation, makes the solid-state solidliquid mixture pressing down ice agent or press down ice agent by the reclaimed ice agent liquid that presses down.
Preferably, the moisture pressed down in ice agent liquid that the method evaporation of combining arbitrarily by method of ventilation and heating means is reclaimed, makes the solid-state solidliquid mixture pressing down ice agent or press down ice agent by the reclaimed ice agent liquid that presses down.
Preferably, first with the moisture pressed down in ice agent liquid that method of ventilation evaporation is reclaimed; And then evaporate the reclaimed moisture pressed down in ice agent liquid further by heating means, the reclaimed ice agent liquid that presses down is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Shop experiment shows: 25 DEG C, under the indoor conditions of humidity 50 ~ 75%, the moisture of the aqueous solution of potassium formiate content 20wt% can be evaporated by the force ventilated method of electric fan further, the content of potassium formiate can be increased to more than 30wt% by 20wt%; The aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to the solidliquid mixture of potassium formiate-water by electrically heated method, also the aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to sheet potassium formiate solid.
Further, by with pressing down of reclaiming, ice agent liquid makes solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
Further, step 2) in, in order to press down ice agent liquid by what reclaim from sewage but ice agent or press down ice agent for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Then by reclaimed press down ice agent liquid or press down ice agent for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
From knowledge known in this field: the range of application pressing down ice agent (as potassium formiate) is extremely extensive; Potassium formiate can ionize out formate and potassium ion in water; Calcium formiate is fodder additives and has antibacterial anti-corrosion function, and potassium sulfate, Repone K are potash fertilizer; Urea is chemical fertilizer.
From knowledge: 20 DEG C of potassium formiate solubleness are 337g/100g, 20 DEG C of calcium formiate solubleness are 16.6g/100g, 20 DEG C of calcium chloride solubleness are 74.5g/100g, 20 DEG C of Repone K solubleness are 34.2g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, calcium formiate, calcium chloride, Repone K solubleness and temperature), transpiration cooling, isolation of purified, solid-state calcium formiate and the aqueous solution, Repone K and the aqueous solution thereof can be produced respectively with potassium formiate and calcium chloride; 20 DEG C of potassium sulfate solubleness are 11.1g/100g, 20 DEG C of sodium sulfate solubleness are 19.5g/100g, 20 DEG C of sodium formiate solubleness are 81.2g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, potassium sulfate, sodium sulfate solubleness and temperature), transpiration cooling, isolation of purified, solid-state potassium sulfate and the aqueous solution, sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium sulfate; 20 DEG C of sodium-chlor solubleness are 35.9g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, sodium-chlor, Repone K solubleness and temperature), transpiration cooling, solid potassium chloride and the aqueous solution, sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium-chlor; 0 DEG C of potash hydroxide solubility is 95.7g/100g, 0 DEG C of sodium formiate solubleness is 43g/100g, 0 DEG C of chloride hydroxide solubility is 42g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, potassium hydroxide, chloride hydroxide solubility and temperature), transpiration cooling, isolation of purified, potassium hydroxide and the aqueous solution, solid-state sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium hydroxide.
From knowledge: the dissolubility difference under calcium chloride, sodium-chlor, Repone K, calcium formiate, sodium formiate, potassium formiate equal temperature is huge; Dissolubility difference during some material differing tempss is huge, and if 0 DEG C of Repone K solubleness is 28.9g, 100 DEG C of Repone K solubleness are 56.2g; Dissolubility difference during some material differing tempss is little, and if 0 DEG C of sodium-chlor solubleness is 35.6g, 100 DEG C of sodium-chlor solubleness are 39.2g; The Isolating chlorinated potassium of dissolubility difference when utilizing Repone K, sodium-chlor differing temps, sodium-chlor are mature technologies.
From knowledge: with hydrochloric acid and potassium formiate or calcium formiate, can formic acid be generated.
Further, step 2) in, in order to from pressing down recycle-water soluble high polymer and potassium formiate in ice agent sewage, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the any one or any two or more materials of volatile salt, first press down the moisture in ice agent sewage with method of ventilation evaporation, make to press down ice agent sewage and be separated into top superpolymer aqueous layer and bottom is concentrated presses down ice agent sewage layer, and then the superpolymer aqueous solution on top is separated with the concentrated ice agent sewage that presses down of bottom, to recycle the superpolymer aqueous solution respectively and press down ice agent liquid or press down ice agent.
Further, the moisture of the isolated superpolymer aqueous solution is evaporated with method of ventilation, to recycle water soluble polymer.
Further, the moisture of the isolated superpolymer aqueous solution is evaporated by the method that method of ventilation and heating means are combined arbitrarily, to recycle water soluble polymer.
Further, with the isolated concentrated moisture pressing down ice agent sewage of method of ventilation evaporation, press down ice agent liquid to recycle or press down ice agent.
Further, the isolated concentrated moisture pressing down ice agent sewage of the method evaporation of combining arbitrarily by method of ventilation and heating means, presses down ice agent liquid to recycle or presses down ice agent.
Shop experiment shows: first in 88.5g clear water, add 1.5g polyvinylpyrrolidone or poly-N-V-Pyrol RC stirring and dissolving, and then add 10g potassium formiate stirring and dissolving, can form the aqueous solution of homogeneous transparent, and this aqueous solution is not stratified stationary indoors 24 hours; Further experiment shows, by this aqueous solution 500g at the force ventilated method transpiring moisture of indoor electric fan to 100g, this aqueous solution is divided into 2 layers, and upper strata is the polyvinylpyrrolidone or poly-N-V-Pyrol RC aqueous solution that viscosity is larger, and lower floor is the potassium formiate aqueous solution.
Further, by reclaimed water soluble polymer or its aqueous solution and potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more material in volatile salt or its aqueous solution add in natural gas runner, for suppressing gas hydrate or/and ice.
Further, first by reclaimed water soluble polymer or its aqueous solution and potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more material in volatile salt or its aqueous solution make solid-state pharmacy post, then add in natural gas runner by solid-state pharmacy post, for suppressing gas hydrate or/and ice.
Further, step 2) in, in order to supplement press down ice agent sewage concentration become concentrated press down ice agent liquid time separate out the organic acid loss that organic acid salt solid substance brings, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to supplement effectively but ice agent sewage concentration becomes to concentrate the organic acid that when pressing down ice agent liquid, precipitation organic acid salt solid substance brings to be lost; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: the solubleness of basic metal organic acid salt is far above the solubleness of the inorganic acid salts such as potassium, sodium, ammonium, and the solubleness of potassium formiate is much larger than the solubleness of Repone K; Formic acid is added in the clear water of calcic, magnesium, potassium, formate, can effectively increase formate concentration; Magnesium acetate 20 DEG C of solubleness 53g/100g, much larger than magnesium formiate 20 DEG C of solubleness 16.6g/100g, acetic acid can dissolved solids magnesium formiate.
Further, step 2) in, in order to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance (as salt is brilliant); And then to pressing down in ice agent liquid and solid substance (as salt is brilliant) any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, to reduce solid substance (as salt is brilliant) quantity.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
Further, step 2) in, in order to supplement press down ice agent sewage concentration become concentrated press down ice agent liquid time separate out the organic acid loss that organic acid salt solid substance brings, first add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid) to pressing down in ice agent sewage, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Described water-soluble inorganic acid should be able to effectively supplement and press down ice agent sewage concentration and become concentrated and separate out the organic acid that organic acid salt solid substance brings when pressing down ice agent liquid and lose; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: hydrochloric acid effectively can dissolve calcium formiate.
Further, step 2) in, in order to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance (as salt is brilliant); And then add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid etc.) to pressing down in ice agent liquid and solid substance (as salt is brilliant), to reduce solid substance (as salt is brilliant) quantity.
Described water-soluble inorganic acid should be able to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: can calcium formiate be dissolved with hydrochloric acid.
Further, step 2) in, in order to reclaim organic liquid, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then be separated pressing down ice agent liquid or pressing down ice agent with the organic liquid that may exist; And then press down ice agent liquid (or pressing down ice agent) and organic liquid recycling by isolated.Further, the isolated ice agent liquid (or pressing down ice agent) that presses down is added Sweet natural gas or/and in natural gas runner.
From knowledge known in this field: often containing a small amount of emulsifying hydrocarbon, liquid hydrocarbon in the sewage separated from Sweet natural gas; Solid-liquid separating method, Liquid liquid Separation method are mature technology.
Further, step 2) in, in order to reclaim functional chemical agent, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then be separated pressing down ice agent liquid or pressing down ice agent with the functional chemical agent that may exist; And then press down ice agent liquid by isolated or press down ice agent and functional chemical agent recycling.
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
From knowledge known in this field: often containing external functional chemical agent (as additional foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid etc.) in the sewage separated from Sweet natural gas.
Preferably, step 2) in, in order to reclaim foaming water discharge agent, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then by press down ice agent liquid or press down ice agent with may exist foaming water discharge agent be separated; And then press down ice agent liquid by isolated or press down ice agent and foaming water discharge agent recycling.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed foaming water discharge agent is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commercial foam water discharge agent is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the upper transparent sewage 380ml that potassium formiate content is about 5wt%, add the foaming water discharge agent of the OP-10 content 50wt% of 20ml, the transparent liquid containing foaming water discharge agent can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 400ml of foaming water discharge agent by electric fan forced ventilation method evaporation concentration to 40ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the larger foaming water discharge agent of upper strata viscosity is isolated with separating funnel, then separated foaming water discharge agent 1ml being added 20ml is about in the transparent sewage of 5wt% from the potassium formiate content extending gas field gas gathering station, still can produce a large amount of foam, can again add in natural gas runner.
Preferably, step 2) in, in order to reclaim inhibiter, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then by press down ice agent liquid or press down ice agent with may exist inhibiter be separated; And then press down ice agent liquid (or pressing down ice agent) and inhibiter recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed inhibiter is added in natural gas runner.
Further, reclaimed inhibiter is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity inhibiter is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the transparent sewage 3980ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the inhibiter of the dodecylbenzyl alkyl dimethyl ammonium chloride content 50wt% of 20ml, the transparent liquid containing inhibiter can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 4000ml of inhibiter by electric fan forced ventilation method evaporation concentration to 400ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, isolates the larger inhibiter of upper strata viscosity with separating funnel, is then added by separated inhibiter and extends in gas field gas gathering station sewage, still have good corrosion inhibition, can again add in natural gas runner.
Preferably, step 2) in, in order to reclaim Scale inhibitors, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then by press down ice agent liquid or press down ice agent with may exist Scale inhibitors be separated; And then press down ice agent liquid (or pressing down ice agent) and Scale inhibitors recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed Scale inhibitors is added in natural gas runner.
Further, reclaimed Scale inhibitors is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity Scale inhibitors is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: still having good scale-inhibiting properties from extending gas field gas gathering station containing the Scale inhibitors reclaimed the sewage of potassium formiate, can again add in natural gas runner, can be added in the potassium formiate aqueous solution.
Further, step 2) in, in order to recycling step 1) described in water soluble polymer, first press down the moisture of ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration become but ice agent liquid or but ice agent; Then be separated pressing down ice agent liquid or pressing down ice agent with the water soluble polymer that may exist; And then press down ice agent liquid by isolated or press down ice agent and water soluble polymer recycling.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed water soluble polymer liquid is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed water soluble polymer liquid is added to step 1) described in press down in ice agent liquid.
Further, evaporate the moisture of the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture.
Further, the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture.
Further, reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and reclaim press down ice agent liquid or press down ice agent and make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
From knowledge known in this field: in powdery under polyvinylpyrrolidone normal temperature and pressure, decompose slowly under its aqueous solution normal temperature and pressure.
Shop experiment shows: get the transparent sewage 380ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the aqueous povidone solution 20ml of 5wt%, can form transparent liquid, is placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 1000ml of polyvinylpyrrolidone by electric fan forced ventilation method evaporation concentration to 100ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the aqueous povidone solution separated still has good suppression natural gas hydrate performance, can again add in natural gas runner.
For solving above-mentioned first technical problem, a kind of Sweet natural gas clean preparation method of the present invention, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: the moisture pressing down ice agent sewage with method of ventilation evaporation, press down ice agent liquid or but ice agent to recycle to press down in ice agent sewage.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent; Preferably, the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing pressing down ice agent.
Further, step 1) in, described press down ice agent and to refer under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
The described ice agent sewage that presses down refers to the sewage containing and press down ice agent, can refer in Sweet natural gas containing the water pressing down ice agent, also can to refer in the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing pressing down the water of ice agent, also can refer to separate from the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing the sewage (or production waste) pressing down ice agent; Also can refer to from Sweet natural gas surface production, accumulating website (as gas gathering station, test satellite location, treatment plant etc.) separate containing pressing down the sewage (or production waste) of ice agent;
Described water can refer to vaporous water, also can refer to liquid water or solid water (as ice crystal, gas hydrate crystal).
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Described aid for preventing and controlling natural gas hydrate refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing anti-blocking agent.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state anti-blocking agent.
Described anti-blocking agent refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
Further, step 1) in, the described ice agent liquid that presses down also can refer to and also can refer to alcoholic solution containing pressing down ice agent containing other solvent solutions pressing down ice agent (as containing the alcohol ethereal solution pressing down ice agent).
Further, step 1) in, but described ice agent liquid also can refer to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
Further, step 1) in, the described ice agent liquid that presses down also can refer to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
Further, step 1) in, described presses down the aqueous solution that ice agent liquid also can refer to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
Further, step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid also can refer to containing water-soluble superpolymer.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state water soluble polymer.
Described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
Further, step 1) in, described press down ice agent liquid and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water is to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, inhibiter adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, inhibiter and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter be added Sweet natural gas or/and in natural gas runner.
Preferably, first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described inhibiter refers to the mixture of any one or any two or more arbitrary proportion mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described inhibiter also can refer to polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
Further, step 1) in, ground can be risen to smoothly with Sweet natural gas to allow liquid water in gasser pit shaft and enter gathering pipeline, or in order to promote that more Sweet natural gases are from gasser output, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, whipping agent adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, whipping agent and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent be added Sweet natural gas or/and in natural gas runner.
Preferably, first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described whipping agent refers to the mixture of any one or any two or more arbitrary proportion mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: any one cats product, nonionogenic tenside, zwitterionics all have good foaming power; Same after any one cats product or nonionogenic tenside or zwitterionics mix with any one anion surfactant have good foaming power.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors be added Sweet natural gas or/and in natural gas runner.
Preferably, first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter is added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to the mixture of any one or any two or more arbitrary proportion mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Further, step 1) in, press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, whipping agent is added in described pressing down in ice agent liquid.
Preferably, described whipping agent refers to the mixture of any one or any two or more arbitrary proportion mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, Scale inhibitors is added in described pressing down in ice agent liquid.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter and whipping agent are added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to the mixture of any one or any two or more arbitrary proportion mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described whipping agent refers to the mixture of any one or any two or more arbitrary proportion mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, inhibiter, whipping agent, Scale inhibitors are added in described pressing down in ice agent liquid.
Further, step 3) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Described natural ventilating method refers to and allows natural air or wind pass through the method for ventilation pressing down the ice agent sewage water surface, as allowed air pass through from containing the ice agent sewage water surface that presses down pressing down ice agent or to allow wind directly naturally blow over from pressing down the ice agent sewage water surface, etc.
Described method of ventilation of exposing to the weather refers to and allows natural air (or wind) through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage, as allowed air pass through from pressing down the ice agent sewage water surface and allow solar radiation press down ice agent sewage or allow wind directly naturally blow over from pressing down the ice agent sewage water surface and to allow solar radiation press down ice agent sewage, etc.
Described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, spray in the air as ice agent sewage will be pressed down by the method for spray or spraying, or allow press down ice agent sewage trickle in atmosphere, or allow and press down the natural ventilating method that drips in atmosphere of ice agent sewage, as utilized air height, temperature, density relationship is pressing down above ice agent sewage or construction air channel, side, chimney or other types building are to form the natural ventilating method of natural air exhaust phenomenon, air and the natural ventilating method pressing down ice agent waste water area is increased as utilized capillarity, etc..
Described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water, press down the ice agent sewage water surface as forced airflow warp with wind-powered machine (as fan) or press down the method for ventilation of ice agent sewage inside, the method of ventilation that ice agent sewage foam inside finally returns air is again pressed down as forced air or rare gas element (as nitrogen, combustion gas, stack gas, carbonic acid gas etc.) to enter with compressor, etc.
From knowledge known in this field: sunlight can heating liquid, can vaporize water; Significantly be greater than the speed with single ventilation method vaporize water by the speed of the method vaporize water of exposing to the weather, be also significantly greater than the speed with single sunlight heats method vaporize water; Gas gathering station is arranged in field environment, has sufficient sunlight, natural wind can supply to utilize.
Step 3) in, in order to be used for suppressing gas hydrate or/and ice from pressing down pressing down ice agent liquid or pressing down ice agent of reclaiming in ice agent sewage, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; And then reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to reduce costs, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Further, step 3) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle to concentrate.
Further, step 3) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Further, step 3) in, in order to press down ice agent liquid from pressing down in ice agent sewage to reclaim, pressing down the moisture in ice agent sewage with method of ventilation evaporation, pressing down ice agent liquid to recycle to press down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Shop experiment shows: will be placed in stationary indoors and occur precipitated and separated after 1 ~ 3 day by isolated muddy sewage from prolongation gas field gas gathering station Sweet natural gas, top be transparent sewage, and bottom is throw out; Get upper transparent sewage 98.5g, then add 1.5g polyvinylpyrrolidone (or poly-N-V-Pyrol RC) stirring and dissolving, the aqueous solution of homogeneous transparent can be formed, and this aqueous solution is not stratified stationary indoors 24 hours; Further experiment shows, by this aqueous solution 1000g at the force ventilated method transpiring moisture of indoor electric fan to 100g, this aqueous solution is divided into 2 layers and separates out solid substance and salt crystalline substance, upper strata is polyvinylpyrrolidone (or the poly-N-V-Pyrol RC) aqueous solution that viscosity is larger, and lower floor is clean and dirt water; Further experiment shows, polyvinylpyrrolidone (or the poly-N-V-Pyrol RC) aqueous solution that upper strata viscosity is larger can add Sweet natural gas or/and in natural gas runner, effectively can suppress gas hydrate.
Shop experiment shows: polyvinylpyrrolidone (or poly-N-V-Pyrol RC) aqueous solution decomposition rate is slow, still effectively can suppress gas hydrate in outdoor placement after 72 hours.
Further, step 3) in, in order to reduce from pressing down the cost recycled ice agent sewage and press down ice agent liquid, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, press down ice agent liquid to recycle to press down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then concentrated will press down ice agent sewage and deliver to another one place (or website), press down ice agent liquid to recycle concentrated pressing down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then the moisture pressed down by method of ventilation evaporation concentration in ice agent sewage, press down ice agent liquid to recycle to press down in ice agent sewage.Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to press down ice agent solidliquid mixture from pressing down in ice agent sewage to recycle or solid-stately press down ice agent, or press down the speed of ice agent sewage moisture to improve evaporation or reclaim the speed pressing down ice agent liquid, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, presses down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Described heating means comprise the conbined usage consuming any one heating means in the heating means (as coal-fired container heating, steam heating, oil oven heating etc.) of fuel, electrical heating method, waste-heat method, waste heating method, solar heating method or any two or more heating means; Preferably, described solar heating method refers to the heating means directly or indirectly utilizing sun power, as utilized the method for solar water heater or the heating of other solar heat collectors, the method utilizing solar exposure to heat, utilizing the method for plastics or the heating of glass booth.
From knowledge known in this field: evaporation of ventilating presses down the cost of ice agent sewage moisture far below the cost pressing down ice agent sewage moisture with heating means evaporation; Plastic greenhouse can the water on effectively heating evaporation booth inner jar, ground, and evaporated water vapor condensation liquid can be collected, is guided to outside booth.
Further, step 3) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then press down the moisture in ice agent sewage by heating means evaporation concentration in gas gathering station or near gas gathering station, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by heating means evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Preferably, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down ice agent sewage volume to reduce further to concentrate; And then press down the moisture in ice agent sewage by heating means evaporation concentration, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.Preferred, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to by press down in ice agent from sewage reclaim press down ice agent liquid for the production of the solid-state solidliquid mixture pressing down ice agent or press down ice agent, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim to press down and press down ice agent liquid in ice agent sewage; Then reclaimed is pressed down ice agent liquid for the production of the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Preferably, the moisture pressed down in ice agent liquid reclaimed with heating means evaporation, makes the solid-state solidliquid mixture pressing down ice agent or press down ice agent by the reclaimed ice agent liquid that presses down.
Preferably, the moisture pressed down in ice agent liquid that the method evaporation of combining arbitrarily by method of ventilation and heating means is reclaimed, makes the solid-state solidliquid mixture pressing down ice agent or press down ice agent by the reclaimed ice agent liquid that presses down.
Preferably, first with the moisture pressed down in ice agent liquid that method of ventilation evaporation is reclaimed; And then evaporate the reclaimed moisture pressed down in ice agent liquid further by heating means, the reclaimed ice agent liquid that presses down is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Shop experiment shows: 25 DEG C, under the indoor conditions of humidity 50 ~ 75%, the moisture of the aqueous solution of potassium formiate content 20wt% can be evaporated by the force ventilated method of electric fan further, the content of potassium formiate can be increased to more than 30wt% by 20wt%; The aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to the solidliquid mixture of potassium formiate-water by electrically heated method, also the aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to sheet potassium formiate solid.
Further, by with pressing down of reclaiming, ice agent liquid makes solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to press down ice agent liquid by what reclaim from sewage but ice agent or press down ice agent for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim to press down and press down ice agent liquid in ice agent sewage; Then by reclaimed press down ice agent liquid or press down ice agent for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
From knowledge known in this field: the range of application pressing down ice agent (as potassium formiate) is extremely extensive; Potassium formiate can ionize out formate and potassium ion in water; Calcium formiate is fodder additives and has antibacterial anti-corrosion function, and potassium sulfate, Repone K are potash fertilizer; Urea is chemical fertilizer.
From knowledge: 20 DEG C of potassium formiate solubleness are 337g/100g, 20 DEG C of calcium formiate solubleness are 16.6g/100g, 20 DEG C of calcium chloride solubleness are 74.5g/100g, 20 DEG C of Repone K solubleness are 34.2g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, calcium formiate, calcium chloride, Repone K solubleness and temperature), transpiration cooling, isolation of purified, solid-state calcium formiate and the aqueous solution, Repone K and the aqueous solution thereof can be produced respectively with potassium formiate and calcium chloride; 20 DEG C of potassium sulfate solubleness are 11.1g/100g, 20 DEG C of sodium sulfate solubleness are 19.5g/100g, 20 DEG C of sodium formiate solubleness are 81.2g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, potassium sulfate, sodium sulfate solubleness and temperature), transpiration cooling, isolation of purified, solid-state potassium sulfate and the aqueous solution, sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium sulfate; 20 DEG C of sodium-chlor solubleness are 35.9g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, sodium-chlor, Repone K solubleness and temperature), transpiration cooling, solid potassium chloride and the aqueous solution, sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium-chlor; 0 DEG C of potash hydroxide solubility is 95.7g/100g, 0 DEG C of sodium formiate solubleness is 43g/100g, 0 DEG C of chloride hydroxide solubility is 42g/100g, utilize the prior art such as replacement(metathesis)reaction, dissolubility difference (or relation of potassium formiate, sodium formiate, potassium hydroxide, chloride hydroxide solubility and temperature), transpiration cooling, isolation of purified, potassium hydroxide and the aqueous solution, solid-state sodium formiate and the aqueous solution thereof can be produced with potassium formiate and sodium hydroxide.
From knowledge: the dissolubility difference under calcium chloride, sodium-chlor, Repone K, calcium formiate, sodium formiate, potassium formiate equal temperature is huge; Dissolubility difference during some material differing tempss is huge, and if 0 DEG C of Repone K solubleness is 28.9g, 100 DEG C of Repone K solubleness are 56.2g; Dissolubility difference during some material differing tempss is little, and if 0 DEG C of sodium-chlor solubleness is 35.6g, 100 DEG C of sodium-chlor solubleness are 39.2g; The Isolating chlorinated potassium of dissolubility difference when utilizing Repone K, sodium-chlor differing temps, sodium-chlor are mature technologies.
From knowledge: with hydrochloric acid and potassium formiate or calcium formiate, can formic acid be generated.
Further, step 3) in, in order to from pressing down recycle-water soluble high polymer and potassium formiate in ice agent sewage, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the any one or any two or more materials of volatile salt, first press down the moisture in ice agent sewage with method of ventilation evaporation, make to press down ice agent sewage and be separated into top superpolymer aqueous layer and bottom is concentrated presses down ice agent sewage layer, and then the superpolymer aqueous solution on top is separated with the concentrated ice agent sewage that presses down of bottom, to recycle the superpolymer aqueous solution respectively and to press down ice agent (or pressing down ice agent liquid).
Further, the moisture of the isolated superpolymer aqueous solution is evaporated with method of ventilation, to recycle water soluble polymer.
Further, the moisture of the isolated superpolymer aqueous solution is evaporated by the method that method of ventilation and heating means are combined arbitrarily, to recycle water soluble polymer.
Further, with the isolated concentrated moisture pressing down ice agent sewage of method of ventilation evaporation, press down ice agent liquid to recycle or press down ice agent.
Further, the isolated concentrated moisture pressing down ice agent sewage of the method evaporation of combining arbitrarily by method of ventilation and heating means, presses down ice agent liquid to recycle or presses down ice agent.
Shop experiment shows: first in 88.5g clear water, add 1.5g polyvinylpyrrolidone (or poly-N-V-Pyrol RC) stirring and dissolving, and then add 10g potassium formiate stirring and dissolving, can form the aqueous solution of homogeneous transparent, and this aqueous solution is not stratified stationary indoors 24 hours; Further experiment shows, by this aqueous solution 500g at the force ventilated method transpiring moisture of indoor electric fan to 100g, this aqueous solution is divided into 2 layers, and upper strata is polyvinylpyrrolidone (or the poly-N-V-Pyrol RC) aqueous solution that viscosity is larger, and lower floor is the potassium formiate aqueous solution.
Further, by reclaimed water soluble polymer (or its aqueous solution) and potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more materials (or its aqueous solution) in volatile salt add in natural gas runner, for suppressing gas hydrate or/and ice.
Further, first by reclaimed water soluble polymer or its aqueous solution and potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more material in volatile salt or its aqueous solution make solid-state pharmacy post, then add in natural gas runner by solid-state pharmacy post, for suppressing gas hydrate or/and ice.
Further, step 3) in, in order to supplement press down ice agent sewage concentration become concentrated press down ice agent liquid time separate out the organic acid loss that organic acid salt solid substance brings, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to supplement effectively but ice agent sewage concentration becomes to concentrate the organic acid that when pressing down ice agent liquid, precipitation organic acid salt solid substance brings to be lost; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: the solubleness of basic metal organic acid salt is far above the solubleness of the inorganic acid salts such as potassium, sodium, ammonium, and the solubleness of potassium formiate is much larger than the solubleness of Repone K; Formic acid is added in the clear water of calcic, magnesium, potassium, formate, can effectively increase formate concentration; Magnesium acetate 20 DEG C of solubleness 53g/100g, much larger than magnesium formiate 20 DEG C of solubleness 16.6g/100g, acetic acid can dissolved solids magnesium formiate.
Further, step 3) in, in order to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance (as salt is brilliant); And then to pressing down in ice agent liquid and solid substance (as salt is brilliant) any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, to reduce solid substance (as salt is brilliant) quantity.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
Further, step 3) in, in order to supplement press down ice agent sewage concentration become concentrated press down ice agent liquid time separate out the organic acid loss that organic acid salt solid substance brings, first add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid) to pressing down in ice agent sewage, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage to recycle.
Described water-soluble inorganic acid should be able to effectively supplement and press down ice agent sewage concentration and become concentrated and separate out the organic acid that organic acid salt solid substance brings when pressing down ice agent liquid and lose; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: hydrochloric acid effectively can dissolve calcium formiate.
Further, step 3) in, in order to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance (as salt is brilliant); And then add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid etc.) to pressing down in ice agent liquid and solid substance (as salt is brilliant), to reduce solid substance (as salt is brilliant) quantity.
Described water-soluble inorganic acid should be able to reduce solid substance (as salt the is brilliant) quantity pressing down and separate out when ice agent sewage concentration becomes to press down ice agent liquid effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: can calcium formiate be dissolved with hydrochloric acid.
Further, step 3) in, in order to reclaim organic liquid, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then be separated pressing down ice agent liquid or pressing down ice agent with the organic liquid that may exist; And then press down ice agent liquid (or pressing down ice agent) and organic liquid recycling by isolated.
Further, step 3) in, by isolated press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
From knowledge known in this field: often containing a small amount of emulsifying hydrocarbon, liquid hydrocarbon in the sewage separated from Sweet natural gas; Solid-liquid separating method, Liquid liquid Separation method are mature technology.
Further, step 3) in, in order to reclaim functional chemical agent, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then be separated pressing down ice agent liquid or pressing down ice agent with the functional chemical agent that may exist; And then press down ice agent liquid (or pressing down ice agent) and functional chemical agent recycling by isolated.
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
From knowledge known in this field: often containing external functional chemical agent (as additional foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid etc.) in the sewage separated from Sweet natural gas.
Preferably, step 3) in, in order to reclaim foaming water discharge agent, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then by press down ice agent liquid or press down ice agent with may exist foaming water discharge agent be separated; And then press down ice agent liquid (or pressing down ice agent) and foaming water discharge agent recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed foaming water discharge agent is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commercial foam water discharge agent is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the upper transparent sewage 380ml that potassium formiate content is about 5wt%, add the foaming water discharge agent of the OP-10 content 50wt% of 20ml, the transparent liquid containing foaming water discharge agent can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 400ml of foaming water discharge agent by electric fan forced ventilation method evaporation concentration to 40ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the larger foaming water discharge agent of upper strata viscosity is isolated with separating funnel, then separated foaming water discharge agent 1ml being added 20ml is about in the transparent sewage of 5wt% from the potassium formiate content extending gas field gas gathering station, still can produce a large amount of foam, can again add in natural gas runner.
Preferably, step 3) in, in order to reclaim inhibiter, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then by press down ice agent liquid or press down ice agent with may exist inhibiter be separated; And then press down ice agent liquid (or pressing down ice agent) and inhibiter recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed inhibiter is added in natural gas runner.
Further, reclaimed inhibiter is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity inhibiter is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the transparent sewage 3980ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the inhibiter of the dodecylbenzyl alkyl dimethyl ammonium chloride content 50wt% of 20ml, the transparent liquid containing inhibiter can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 4000ml of inhibiter by electric fan forced ventilation method evaporation concentration to 400ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, isolates the larger inhibiter of upper strata viscosity with separating funnel, is then added by separated inhibiter and extends in gas field gas gathering station sewage, still have good corrosion inhibition, can again add in natural gas runner.
Preferably, step 3) in, in order to reclaim Scale inhibitors, first pressing down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid (or pressing down ice agent); Then by press down ice agent liquid or press down ice agent with may exist Scale inhibitors be separated; And then press down ice agent liquid (or pressing down ice agent) and Scale inhibitors recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed Scale inhibitors is added in natural gas runner.
Further, reclaimed Scale inhibitors is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity Scale inhibitors is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: still having good scale-inhibiting properties from extending gas field gas gathering station containing the Scale inhibitors reclaimed the sewage of potassium formiate, can again add in natural gas runner, can be added in the potassium formiate aqueous solution.
Further, step 3) in, in order to recycling step 1) described in water soluble polymer, first press down the moisture of ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration and become but ice agent liquid (or but ice agent); Then be separated pressing down ice agent liquid or pressing down ice agent with the water soluble polymer that may exist; And then press down ice agent liquid (or pressing down ice agent) and water soluble polymer recycling by isolated.
Further, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed water soluble polymer liquid is added in natural gas runner.
Further, reclaimed water soluble polymer liquid is added to step 1) described in press down in ice agent liquid.
Further, evaporate the moisture of the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture.
Further, the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture.
Further, reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and reclaim press down ice agent liquid or press down ice agent and make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
From knowledge known in this field: in powdery under polyvinylpyrrolidone normal temperature and pressure, decompose slowly under its aqueous solution normal temperature and pressure.
Shop experiment shows: get the transparent sewage 380ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the aqueous povidone solution 20ml of 5wt%, can form transparent liquid, is placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 1000ml of polyvinylpyrrolidone by electric fan forced ventilation method evaporation concentration to 100ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the aqueous povidone solution separated still has good suppression natural gas hydrate performance, can again add in natural gas runner.
For solving above-mentioned first technical problem, a kind of Sweet natural gas clean preparation method of the present invention, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration and become to regenerate but ice agent liquid and solid substance (as salt crystalline substance);
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out; Get the upper transparent sewage 200ml that potassium formiate content is about 5wt% and be placed in furnace pot, temperature 20 ~ 25 DEG C, humidity 50 ~ 70%, without under the outdoor experiment condition of direct sunlight illumination, with electric fan forced ventilation method evaporation 5 ~ 10 days, sewage volume in furnace pot will be reduced to 20ml by 200ml reduction, be condensed into the regeneration potassium formiate aqueous solution, separate out solid substance salt crystalline substance or precipitation simultaneously.
From knowledge known in this field: what the production waste that prolongation gas field gas gathering station separates had is chloride-calcium type, what have is hydrogen-carbonate sodium form, and what have is NaCl type, calcium ions and magnesium ions content about 1000 ~ 10000mg/L; Repone K, sodium-chlor, calcium chloride all effectively can reduce water-ice point, all can effectively suppress gas hydrate and ice; Potassium formiate can be hydrolyzed into formate ion and potassium ion, and 20 DEG C of calcium formiate solubleness are 16.6g/100g, and 20 DEG C of magnesium formiate solubleness are 14.4g/100g, and 1 calcium ion or magnesium ion can in conjunction with 2 formate ions.Calculating shows, by calcium ion content 500 ~ 5000mg/L, magnesium ion content 500 ~ 5000mg/L, the potassium formiate content 5wt% of this production waste, if evaporate this production waste with method of ventilation under 20 DEG C of constant temperatures, by its volume by 1000ml evaporation concentration to 100ml, calcium formiate 1.625 ~ 16.25g, magnesium formiate 2.375 ~ 23.75g can be generated; Calcium formiate solid substance 1.395 ~ 13.95g, magnesium formiate solid substance 2.075 ~ 20.75g can be separated out, need to consume formate 2.604 ~ 26.04g for this reason; This 100ml concentrates in production waste should remain formate 0.746 ~ 24.182g, and being equivalent to the residue content that this 100ml concentrates potassium formiate in production waste is 1.39 ~ 45.14g i.e. 1.39 ~ 45.14wt%.Further calculating shows, according to this production waste be chloride-calcium type, 20 DEG C of Repone K solubleness are 34.2g/100g meter, when the concentrated precipitation of this production waste calcium formiate, magnesium formiate, 0 ~ 23.5g Repone K can be separated out simultaneously, still have 3 ~ 17.8g potassium ion not separate out, being equivalent to the content that this 100ml concentrates Repone K in production waste is 3 ~ 17.8g i.e. 3 ~ 17.8wt%; And calcium formiate, magnesium formiate are separated out more, it is higher that this 100ml concentrates KCE content in production waste, until reach Repone K saturation concentration 34.2g/100g (or 25.5wt%).Therefore, in gas field sewage, whether calcium ions and magnesium ions content number, separate out calcium formiate, magnesium formiate, the amount of precipitation of calcium formiate, magnesium formiate, all do not affect the effect pressing down ice agent liquid suppression gas hydrate and ice reclaimed with ventilation method of evaporating.
3) isolation of purified: regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, by cleaning but the utilization of ice agent liquids recovery.
From knowledge known in this field: the sewage separated from Sweet natural gas have containing water-fast suspended substance or throw out (as brilliant in silt, dirt etc.), some sewage is also containing water-fast floating matter (paraffin particles etc. as the Iron sulfuret aggregate of fracturing fluid residue, loose porous, foams, precipitation); When sewage is placed in outside atmosphere environment, sewage surface floatingly can have the materials such as faggot.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent; Preferably, the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing pressing down ice agent.
Further, step 1) in, described press down ice agent and to refer under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
The described ice agent sewage that presses down refers to the sewage containing and press down ice agent, can refer in Sweet natural gas containing the water pressing down ice agent, also can to refer in the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing pressing down the water of ice agent, also can refer to separate from the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing the sewage (or production waste) pressing down ice agent; Also can refer to from Sweet natural gas surface production, accumulating website (as gas gathering station, test satellite location, treatment plant etc.) separate containing pressing down the sewage (or production waste) of ice agent;
Described water can refer to vaporous water, also can refer to liquid water or solid water (as ice crystal, gas hydrate crystal).
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Described aid for preventing and controlling natural gas hydrate refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing anti-blocking agent.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state anti-blocking agent.
Described anti-blocking agent refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
Further, step 1) in, the described ice agent liquid that presses down also can refer to and also can refer to alcoholic solution containing pressing down ice agent containing other solvent solutions pressing down ice agent (as containing the alcohol ethereal solution pressing down ice agent).
Further, step 1) in, but described ice agent liquid also can refer to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
Further, step 1) in, the described ice agent liquid that presses down also can refer to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
Further, step 1) in, described presses down the aqueous solution that ice agent liquid also can refer to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
Further, step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid also can refer to containing water-soluble superpolymer.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state water soluble polymer.
Described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
Further, step 1) in, described press down ice agent liquid and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water is to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, inhibiter adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, inhibiter and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter be added Sweet natural gas or/and in natural gas runner.
Preferably, first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described inhibiter also can refer to or comprise polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
Further, step 1) in, ground can be risen to smoothly with Sweet natural gas to allow liquid water in gasser pit shaft and enter gathering pipeline, or in order to promote that more Sweet natural gases are from gasser output, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, whipping agent adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, whipping agent and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent be added Sweet natural gas or/and in natural gas runner.
Preferably, first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors be added Sweet natural gas or/and in natural gas runner.
Preferably, first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter is added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Further, step 1) in, press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, whipping agent is added in described pressing down in ice agent liquid.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, Scale inhibitors is added in described pressing down in ice agent liquid.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter and whipping agent are added in described pressing down in ice agent liquid.
Preferably, described inhibiter or comprise refers to the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, inhibiter, whipping agent, Scale inhibitors are added in described pressing down in ice agent liquid.
Further, step 2) in, described press down ice agent sewage evaporation moisture after, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: can effectively suppress gas hydrate to generate containing the gas field sewage pressing down ice agent 0.5wt%; To extend gas field, when April-September, temperature was higher, the ice agent content that presses down in gas field sewage is generally less than 1%, and the sewage in natural gas runner just can effectively suppress gas hydrate to generate containing when pressing down ice agent 0.3-0.5wt%.
Further, step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Described natural ventilating method refers to and allows natural air or wind pass through the method for ventilation pressing down the ice agent sewage water surface, as allowed air pass through from containing the ice agent sewage water surface that presses down pressing down ice agent or to allow wind directly naturally blow over from pressing down the ice agent sewage water surface, etc.
Described method of ventilation of exposing to the weather refers to and allows natural air (or wind) through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage, as allowed air pass through from pressing down the ice agent sewage water surface and allow solar radiation press down ice agent sewage or allow wind directly naturally blow over from pressing down the ice agent sewage water surface and to allow solar radiation press down ice agent sewage, etc.
Described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, spray in the air as ice agent sewage will be pressed down by the method for spray or spraying, or allow press down ice agent sewage trickle in atmosphere, or allow and press down the natural ventilating method that drips in atmosphere of ice agent sewage, as utilized air height, temperature, density relationship is pressing down above ice agent sewage or construction air channel, side, chimney or other types building are to form the natural ventilating method of natural air exhaust phenomenon, air and the natural ventilating method pressing down ice agent waste water area is increased as utilized capillarity, etc..
Described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water, press down the ice agent sewage water surface as forced airflow warp with wind-powered machine (as fan) or press down the method for ventilation of ice agent sewage inside, the method of ventilation that ice agent sewage foam inside finally returns air is again pressed down as forced air or rare gas element (as nitrogen, combustion gas, stack gas, carbonic acid gas etc.) to enter with compressor, etc.
Further, step 2) in, in order to accelerate the formation speed of solid substance (as salt is brilliant), adding crystalline material agglomerate or/and make the method pressing down ice agent sewage static (or sluggish flow) accelerate the formation speed of solid substance (as salt is brilliant) with to pressing down in ice agent sewage, becoming regeneration to press down ice agent liquid and solid substance (as salt is brilliant) so that ice agent sewage concentration will be pressed down.
Described crystalline material agglomerate refers to containing any one or any two or more mixing in the material (as stalk, bavin grass or wood chip, branch, bamboo mat, cloth etc.) of vegetable fibre, wire, metal strip thing, sandstone, brick and tile, salt grain (as sodium chloride particle, potassium chloride particle etc.).
From knowledge: metal ion, nucleus, throw out etc. are understood first crystallization on the high surface energy objects such as vegetable fibre, assemble, grown up, formation bulk or macrobead concentrate solid substance.
Further, step 2) in, in order to reduce costs, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Preferably, describedly to press down after ice agent sewage evaporation moisture, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: to extend gas field, according to April ~ September temperature compared with in Gao Shi gas gathering station sewage to press down ice agent content be 0.5% calculating, if with tank car by press down ice agent content be 0.5% gas gathering station sewage be transported to sewage work's centralized recovery press down ice agent, need to consume a large amount of freight charges, energy consumption; But, if the transpiring moisture being condensed into of first this sewage being ventilated in gas gathering station or near gas gathering station press down ice agent content 10% press down ice agent liquid, press down the volume of ice agent liquid and only have gas gathering station to press down 0.05% of ice agent sewage volume, a large amount of freight charges, energy consumption can be saved.
Further, step 2) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then concentrated will press down ice agent sewage and deliver to another one place (or website), make regeneration further press down ice agent liquid and solid substance (as salt is brilliant) so that ice agent sewage concentratedly will be pressed down.
Further, step 2) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Preferably, described concentrated press down ice agent sewage evaporation moisture after, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: to extend gas field, according to April ~ September temperature compared with in Gao Shi gas gathering station sewage to press down ice agent content be 0.5% calculating, if with tank car by press down ice agent content be 0.5% gas gathering station sewage be transported to sewage work's centralized recovery press down ice agent, need to consume a large amount of freight charges, energy consumption; But, the transpiring moisture if first this sewage is ventilated in gas gathering station or near gas gathering station and be condensed into press down ice agent content 1% press down ice agent sewage, and then be transported to sewage work's centralized recovery but ice agent with tank car by being condensed into the ice agent sewage that presses down pressing down ice agent content 1%, traffic capacity will reduce by 50%, can save a large amount of freight charges, energy consumption.
Further, step 2) in, in order to reduce costs, also first can press down the moisture of ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, pressing down ice agent sewage volume to reduce, being formed to concentrate and press down ice agent sewage; And then the concentrated refuse matter such as solid substance (as salt is brilliant), suspended substance, throw out, floating matter that may exist in ice agent sewage that presses down is separated; And then the concentrated ice agent sewage that presses down after being separated refuse matter is delivered to another one place (or website); And then be separated the concentrated moisture pressed down in ice agent sewage after refuse matter with method of ventilation evaporation, concentrated after being separated refuse matter is pressed down ice agent sewage and be condensed into regeneration further and press down ice agent liquid and solid substance (as salt is brilliant).
Preferably, after concentrated after described separation refuse matter presses down ice agent sewage evaporation moisture, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
Preferred, by isolated refuse the matter further harmless treatment of existing method or comprehensive utilization.
Further, step 2) in, in order to improve the velocity of evaporation pressing down moisture in ice agent sewage, or become regeneration to press down the speed of ice agent liquid and solid substance (as salt is brilliant) to improve by pressing down ice agent sewage concentration, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, will press down ice agent sewage concentration and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Described heating means comprise the conbined usage consuming any one heating means in the heating means (as coal-fired container heating, steam heating, oil oven heating etc.) of fuel, electrical heating method, waste-heat method, waste heating method, solar heating method or any two or more heating means; Preferably, described solar heating method refers to the heating means directly or indirectly utilizing sun power, as utilized the method for solar water heater or the heating of other solar heat collectors, the method utilizing solar exposure to heat, utilizing the method for plastics or the heating of glass booth.
Further, step 2) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Further, step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then use heating means evaporation concentration in gas gathering station or near gas gathering station but the moisture in ice agent sewage, concentratedly will press down ice agent sewage and be condensed into regeneration further but ice agent liquid and solid substance (as salt crystalline substance).
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), so that but the concentrated ice agent sewage that presses down is made into regeneration ice agent liquid and solid substance (as salt is brilliant).
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Further, step 2) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down ice agent sewage volume to reduce further to concentrate; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Further, step 2) in, in order to supplementary that but ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt crystalline substance) organic acid loses, or in order to the inorganic acid salt of potassium, sodium, ammonium etc. is converted into organic acid salt, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to supplement effectively but the organic acid that ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt is brilliant) loses, or effectively the inorganic acid salt of potassium, sodium, ammonium etc. should be able to be converted into organic acid salt; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: the solubleness of basic metal organic acid salt is far above the solubleness of the inorganic acid salts such as potassium, sodium, ammonium, and the solubleness of potassium formiate is much larger than the solubleness of Repone K; Formic acid is added in the clear water of calcic, magnesium, potassium, formate, can effectively increase formate concentration; Magnesium acetate 20 DEG C of solubleness 53g/100g, much larger than magnesium formiate 20 DEG C of solubleness 16.6g/100g, acetic acid can dissolved solids magnesium formiate.
Further, step 2) in, in order to reduce solid substance (as salt is brilliant) quantity, or in order to the inorganic acid salt of potassium, sodium, ammonium etc. is converted into organic acid salt, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant); Then any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid is pressed down in ice agent liquid and solid substance (as salt is brilliant) to regeneration, to reduce solid substance (as salt is brilliant) quantity.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to reduce solid substance (as salt is brilliant) quantity effectively, or effectively the inorganic acid salt of calcium, magnesium, potassium, sodium, ammonium etc. should be able to be converted into organic acid salt; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
Further, step 2) in, in order to reduce the organic acid loss pressed down when ice agent sewage concentration becomes regeneration to press down ice agent liquid and solid substance (as salt is brilliant), first add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid) to pressing down in ice agent sewage, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Described water-soluble inorganic acid should be able to reduce effectively but the organic acid that ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt is brilliant) loses; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: hydrochloric acid effectively can dissolve calcium formiate.
Further, step 2) in, in order to reduce solid substance (as salt is brilliant) quantity, first pressing down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant); Then press down in ice agent liquid and solid substance (as salt is brilliant) to regeneration and add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid etc.), to reduce solid substance (as salt is brilliant) quantity.
Described water-soluble inorganic acid should be able to reduce solid substance (as salt is brilliant) quantity effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: can calcium formiate be dissolved with hydrochloric acid.
Further, step 3) in, by isolated refuse the matter further harmless treatment of existing method or comprehensive utilization.
Further, step 3) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim organic liquid, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, by cleaning but the utilization of ice agent liquids recovery.
Further, the ice agent liquid that presses down of cleaning is added in natural gas runner.
Further, organic liquid, refuse matter are recycled.
From knowledge known in this field: often containing a small amount of emulsifying hydrocarbon, liquid hydrocarbon in the sewage separated from Sweet natural gas; Solid-liquid separating method, Liquid liquid Separation method are mature technology.
Further, step 3) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim functional chemical agent, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter, organic liquid etc. as existed) that may exist, functional chemical agent and is separated into and clean presses down ice agent liquid, refuse matter, functional chemical agent, by cleaning but the utilization of ice agent liquids recovery.
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
From knowledge known in this field: often containing external functional chemical agent (as additional foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid etc.) in the sewage separated from Sweet natural gas.
Preferably, step 3) in, in order to reclaim foaming water discharge agent, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing foaming water discharge agent regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of foaming water discharge agent and become clean and press down ice agent liquid and foaming water discharge agent; Then by cleaning press down ice agent liquid, foaming water discharge agent recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commercial foam water discharge agent is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the upper transparent sewage 380ml that potassium formiate content is about 5wt%, add the foaming water discharge agent of the OP-10 content 50wt% of 20ml, the transparent liquid containing foaming water discharge agent can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 400ml of foaming water discharge agent by electric fan forced ventilation method evaporation concentration to 40ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the larger foaming water discharge agent of upper strata viscosity is isolated with separating funnel, then separated foaming water discharge agent 1ml being added 20ml is about in the transparent sewage of 5wt% from the potassium formiate content extending gas field gas gathering station, still can produce a large amount of foam, can again add in natural gas runner.
Preferably, step 3) in, in order to reclaim inhibiter, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing inhibiter regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of inhibiter and become clean and press down ice agent liquid and inhibiter; Then by cleaning press down ice agent liquid, inhibiter recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed inhibiter is added in natural gas runner.
Further, reclaimed inhibiter is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity inhibiter is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the transparent sewage 3980ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the inhibiter of the dodecylbenzyl alkyl dimethyl ammonium chloride content 50wt% of 20ml, the transparent liquid containing inhibiter can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 4000ml of inhibiter by electric fan forced ventilation method evaporation concentration to 400ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, isolates the larger inhibiter of upper strata viscosity with separating funnel, is then added by separated inhibiter and extends in gas field gas gathering station sewage, still have good corrosion inhibition, can again add in natural gas runner.
Preferably, step 3) in, in order to reclaim Scale inhibitors, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing Scale inhibitors regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of Scale inhibitors and become clean and press down ice agent liquid and Scale inhibitors; Then by cleaning press down ice agent liquid, Scale inhibitors recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed Scale inhibitors is added in natural gas runner.
Further, reclaimed Scale inhibitors is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity Scale inhibitors is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: still having good scale-inhibiting properties from extending gas field gas gathering station containing the Scale inhibitors reclaimed the sewage of potassium formiate, can again add in natural gas runner, can be added in the potassium formiate aqueous solution.
Further, step 3) in, cleaner in order to make to press down ice agent liquid, or in order to recycling step 1) described in water soluble polymer, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, water soluble polymer liquid, by cleaning but the utilization of ice agent liquid, water soluble polymer liquids recovery.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed water soluble polymer liquid is added in natural gas runner.
Further, reclaimed water soluble polymer liquid is added to step 1) described in press down in ice agent liquid.
Further, by the innoxious or comprehensive utilization further of isolated refuse matter.
Further, evaporate the moisture of the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture.
Further, the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture.
Further, reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and reclaim press down ice agent liquid or press down ice agent and make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
From knowledge known in this field: in powdery under polyvinylpyrrolidone normal temperature and pressure, decompose slowly under its aqueous solution normal temperature and pressure.
Shop experiment shows: get the transparent sewage 380ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the aqueous povidone solution 20ml of 5wt%, can form transparent liquid, is placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 1000ml of polyvinylpyrrolidone by electric fan forced ventilation method evaporation concentration to 100ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the aqueous povidone solution separated still has good suppression natural gas hydrate performance, can again add in natural gas runner.
Further, step 3) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim useful matter, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid, functional chemical agent, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, functional chemical agent, water soluble polymer liquid, by cleaning but ice agent liquid, organic liquid, functional chemical agent, the utilization of water soluble polymer liquids recovery.
Further, refuse matter is returned utilization.
Further, step 3) in, in order to the ice agent liquid that presses down of cleaning is used for making the solid-state solidliquid mixture pressing down ice agent or press down ice agent, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, in order to reduce, the ice agent liquid that presses down of cleaning be made and solid-stately pressed down ice agent or press down the cost of ice agent solidliquid mixture, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Preferably, step 3) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter, organic liquid that may exist are separated into cleaning ice agent liquid and refuse matter; And then evaporate the clean moisture pressed down in ice agent liquid further with method of ventilation; And then evaporate the clean moisture pressed down in ice agent liquid further by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Shop experiment shows: 25 DEG C, under the indoor conditions of humidity 50 ~ 75%, the moisture of the aqueous solution of potassium formiate content 20wt% can be evaporated by the force ventilated method of electric fan further, the content of potassium formiate can be increased to more than 30wt% by 20wt%; The aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to the solidliquid mixture of potassium formiate-water by electrically heated method, also the aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to sheet potassium formiate solid.
Further, step 3) in, in order to be used for suppressing gas hydrate or/and ice by the ice agent liquid that presses down of cleaning, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Preferably, step 3) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to by with cleaning press down that ice agent liquid makes solid-state press down ice agent or press down the solidliquid mixture of ice agent be used for suppressing gas hydrate or/and ice, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent; And then by make solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
Further, step 3) in, in order to the performance utilizing soluble solid (as salt is brilliant) to suppress gas hydrate or ice, regeneration is pressed down ice agent liquid and solid substance (as salt crystalline substance) adds Sweet natural gas or/and in natural gas runner.
From knowledge known in this field: the aqueous solution of soluble solid (as salt is brilliant) can effectively suppress gas hydrate or ice, can press down together with ice agent liquid with regeneration and add in natural gas runner.
Further, step 3) in, in order to cleaning pressed down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by cleaning press down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 3) in, by refuse matter for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 3) in, in order to reclaim the organic acid salt (as reclaimed calcium formiate from refuse matter) of alkaline-earth metal from refuse matter, being soaked in water or rinsing refuse matter, to reclaim alkaline-earth metal organic acid salt in refuse matter.
It is described that be soaked in water or rinse should be able to alkaline-earth metal organic acid salt in efficient recovery refuse matter; For reaching aforementioned object, as those skilled in the art, the concrete grammar (as by refuse matter again method soluble in water) being soaked in water or rinsing can be determined, salt crystalline substance, suspended substance, throw out, the concrete treatment process of floating matter when can determine with water enchroachment (invasion) bubble or rinse refuse matter.
From knowledge known in this field: the dissolubility difference utilizing calcium formiate, calcium chloride, can effectively separating formic calcium, calcium chloride mixture.
Further, step 3) in, in order to utilize useless material production organic acid (as produced formic acid), soaking with water-soluble inorganic acid (example hydrochloric acid, sulfuric acid, nitric acid etc.) or rinsing refuse matter, to produce organic acid.
Described effectively should be able to produce organic acid with water-soluble inorganic acid soak or flushing; For reaching aforementioned object, as those skilled in the art, the concrete grammar (as refuse matter being dissolved in the method in hydrochloric acid) by water-soluble inorganic acid soak or flushing can being determined, can determine by salt crystalline substance, suspended substance, throw out, the concrete treatment process of floating matter when invading bubble with water-soluble inorganic acid or rinse refuse matter.
From knowledge known in this field: hydrochloric acid can dissolve calcium formiate, generate formic acid and calcium chloride; Utilize existing method can separating formic and calcium chloride.
For solving above-mentioned first technical problem, a kind of Sweet natural gas clean preparation method of the present invention, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration and become to regenerate but ice agent liquid and solid substance (as salt crystalline substance);
4) isolation of purified: regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, by cleaning but the utilization of ice agent liquids recovery.
Further, step 1) in, described press down ice agent and to refer under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent; Preferably, the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing pressing down ice agent.
The described ice agent sewage that presses down refers to the sewage containing and press down ice agent, can refer in Sweet natural gas containing the water pressing down ice agent, also can to refer in the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing pressing down the water of ice agent, also can refer to separate from the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing the sewage (or production waste) pressing down ice agent; Also can refer to from Sweet natural gas surface production, accumulating website (as gas gathering station, test satellite location, treatment plant etc.) separate containing pressing down the sewage (or production waste) of ice agent;
Described water can refer to vaporous water, also can refer to liquid water or solid water (as ice crystal, gas hydrate crystal).
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
Described aid for preventing and controlling natural gas hydrate refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state anti-blocking agent.
Further, step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing anti-blocking agent.
Described anti-blocking agent refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
Further, step 1) in, the described ice agent liquid that presses down also can refer to and also can refer to alcoholic solution containing pressing down ice agent containing other solvent solutions pressing down ice agent (as containing the alcohol ethereal solution pressing down ice agent).
Further, step 1) in, but described ice agent liquid also can refer to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
Further, step 1) in, the described ice agent liquid that presses down also can refer to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
Further, step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state water soluble polymer.
Further, step 1) in, described presses down the aqueous solution that ice agent liquid also can refer to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
Further, step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid also can refer to containing water-soluble superpolymer.
Described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
Further, step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
Further, step 1) in, described press down ice agent liquid and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water is to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, inhibiter adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, inhibiter and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter be added Sweet natural gas or/and in natural gas runner.
Preferably, first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described inhibiter also can refer to or comprise polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
Further, step 1) in, ground can be risen to smoothly with Sweet natural gas to allow liquid water in gasser pit shaft and enter gathering pipeline, or in order to promote that more Sweet natural gases are from gasser output, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, ice agent liquid will be pressed down or press down ice agent, whipping agent adds Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, whipping agent and Sweet natural gas are or/and vaporous water in natural gas runner, liquid water, ice is or/and gas hydrate contact or mixing, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent be added Sweet natural gas or/and in natural gas runner.
Preferably, first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, to press down ice agent liquid or press down ice agent, Scale inhibitors adds Sweet natural gas or/and natural gas runner, allow and press down ice agent liquid or press down ice agent, Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Preferably, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors be added Sweet natural gas or/and in natural gas runner.
Preferably, first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Preferably, ice agent liquid will be pressed down or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter is added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Further, step 1) in, press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, whipping agent is added in described pressing down in ice agent liquid.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, in order to reduce the scale velocity of natural gas runner, Scale inhibitors is added in described pressing down in ice agent liquid.
Further, step 1) in, press down ice agent liquid to reduce or press down ice agent, stratum (gas-bearing formation) water to the corrosion of natural gas runner, or press down ice agent liquid to reduce or press down the static pressure of ice agent in Wellbore of Gas Wells, or suppress gas hydrate or/and the performance of ice to improve to press down ice agent liquid or press down ice agent, or in order to promote that more Sweet natural gases are from gasser output, inhibiter and whipping agent are added in described pressing down in ice agent liquid.
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, inhibiter, whipping agent, Scale inhibitors are added in described pressing down in ice agent liquid.
Further, step 3) in, described press down ice agent sewage evaporation moisture after, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: can effectively suppress gas hydrate to generate containing the gas field sewage pressing down ice agent 0.5wt%; To extend gas field, when April-September, temperature was higher, the ice agent content that presses down in gas field sewage is generally less than 1%, and the sewage in natural gas runner just can effectively suppress gas hydrate to generate containing when pressing down ice agent 0.3-0.5wt%.
Further, step 3) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Described natural ventilating method refers to and allows natural air or wind pass through the method for ventilation pressing down the ice agent sewage water surface, as allowed air pass through from containing the ice agent sewage water surface that presses down pressing down ice agent or to allow wind directly naturally blow over from pressing down the ice agent sewage water surface, etc.
Described method of ventilation of exposing to the weather refers to and allows natural air (or wind) through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage, as allowed air pass through from pressing down the ice agent sewage water surface and allow solar radiation press down ice agent sewage or allow wind directly naturally blow over from pressing down the ice agent sewage water surface and to allow solar radiation press down ice agent sewage, etc.
Described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, spray in the air as ice agent sewage will be pressed down by the method for spray or spraying, or allow press down ice agent sewage trickle in atmosphere, or allow and press down the natural ventilating method that drips in atmosphere of ice agent sewage, as utilized air height, temperature, density relationship is pressing down above ice agent sewage or construction air channel, side, chimney or other types building are to form the natural ventilating method of natural air exhaust phenomenon, air and the natural ventilating method pressing down ice agent waste water area is increased as utilized capillarity, etc..
Described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water, press down the ice agent sewage water surface as forced airflow warp with wind-powered machine (as fan) or press down the method for ventilation of ice agent sewage inside, the method of ventilation that ice agent sewage foam inside finally returns air is again pressed down as forced air or rare gas element (as nitrogen, combustion gas, stack gas, carbonic acid gas etc.) to enter with compressor, etc.
Further, step 3) in, in order to accelerate the formation speed of solid substance (as salt is brilliant), adding crystalline material agglomerate or/and make the method pressing down ice agent sewage static (or sluggish flow) accelerate the formation speed of solid substance (as salt is brilliant) with to pressing down in ice agent sewage, becoming regeneration to press down ice agent liquid and solid substance (as salt is brilliant) so that ice agent sewage concentration will be pressed down.
Described crystalline material agglomerate refers to containing any one or any two or more mixing in the material (as stalk, bavin grass or wood chip, branch, bamboo mat, cloth etc.) of vegetable fibre, wire, metal strip thing, sandstone, brick and tile, sodium chloride particle.
From knowledge: metal ion, nucleus, throw out etc. are understood first crystallization on the high surface energy objects such as vegetable fibre, assemble, grown up, formation bulk or macrobead concentrate solid substance.
Further, step 3) in, in order to reduce costs, in gas gathering station or near gas gathering station, press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Preferably, describedly to press down after ice agent sewage evaporation moisture, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: to extend gas field, according to April ~ September temperature compared with in Gao Shi gas gathering station sewage to press down ice agent content be 0.5% calculating, if with tank car by press down ice agent content be 0.5% gas gathering station sewage be transported to sewage work's centralized recovery press down ice agent, need to consume a large amount of freight charges, energy consumption; But, if the transpiring moisture being condensed into of first this sewage being ventilated in gas gathering station or near gas gathering station press down ice agent content 10% press down ice agent liquid, press down the volume of ice agent liquid and only have gas gathering station to press down 0.05% of ice agent sewage volume, a large amount of freight charges, energy consumption can be saved.
Further, step 3) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then concentrated will press down ice agent sewage and deliver to another one place (or website), make regeneration further press down ice agent liquid and solid substance (as salt is brilliant) so that ice agent sewage concentratedly will be pressed down.
Further, step 3) in, in order to reduce costs, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Preferably, described concentrated press down ice agent sewage evaporation moisture after, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
From knowledge known in this field: to extend gas field, according to April ~ September temperature compared with in Gao Shi gas gathering station sewage to press down ice agent content be 0.5% calculating, if with tank car by press down ice agent content be 0.5% gas gathering station sewage be transported to sewage work's centralized recovery press down ice agent, need to consume a large amount of freight charges, energy consumption; But, the transpiring moisture if first this sewage is ventilated in gas gathering station or near gas gathering station and be condensed into press down ice agent content 1% press down ice agent sewage, and then be transported to sewage work's centralized recovery but ice agent with tank car by being condensed into the ice agent sewage that presses down pressing down ice agent content 1%, traffic capacity will reduce by 50%, can save a large amount of freight charges, energy consumption.
Further, step 3) in, in order to reduce costs, also first can press down the moisture of ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, pressing down ice agent sewage volume to reduce, being formed to concentrate and press down ice agent sewage; And then the concentrated refuse matter such as solid substance (as salt is brilliant), suspended substance, throw out, floating matter that may exist in ice agent sewage that presses down is separated; And then the concentrated ice agent sewage that presses down after being separated refuse matter is delivered to another one place (or website); And then be separated the concentrated moisture pressed down in ice agent sewage after refuse matter with method of ventilation evaporation, concentrated after being separated refuse matter is pressed down ice agent sewage and be condensed into regeneration further and press down ice agent liquid and solid substance (as salt is brilliant).
Preferably, after concentrated after described separation refuse matter presses down ice agent sewage evaporation moisture, described regeneration press down ice agent liquid to press down ice agent content be 1 ~ 75wt%.
Preferred, by isolated refuse the matter further harmless treatment of existing method or comprehensive utilization.
Further, step 3) in, in order to improve the velocity of evaporation pressing down moisture in ice agent sewage, or become regeneration to press down the speed of ice agent liquid and solid substance (as salt is brilliant) to improve by pressing down ice agent sewage concentration, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, will press down ice agent sewage concentration and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Described heating means comprise the conbined usage consuming any one heating means in the heating means (as coal-fired container heating, steam heating, oil oven heating etc.) of fuel, electrical heating method, waste-heat method, waste heating method, solar heating method or any two or more heating means; Preferably, described solar heating method refers to the heating means directly or indirectly utilizing sun power, as utilized the method for solar water heater or the heating of other solar heat collectors, the method utilizing solar exposure to heat, utilizing the method for plastics or the heating of glass booth.
Further, step 3) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Further, step 3) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant).
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then use heating means evaporation concentration in gas gathering station or near gas gathering station but the moisture in ice agent sewage, concentratedly will press down ice agent sewage and be condensed into regeneration further but ice agent liquid and solid substance (as salt crystalline substance).
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website), so that but the concentrated ice agent sewage that presses down is made into regeneration ice agent liquid and solid substance (as salt is brilliant).
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Further, step 3) in, first press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, press down ice agent sewage volume to reduce, formation is concentrated presses down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place (or website); And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, press down ice agent sewage volume to reduce further to concentrate; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance (as salt is brilliant) further.
Further, step 3) in, in order to supplementary that but ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt crystalline substance) organic acid loses, or in order to the inorganic acid salt of potassium, sodium, ammonium etc. is converted into organic acid salt, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to supplement effectively but the organic acid that ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt is brilliant) loses, or effectively the inorganic acid salt of potassium, sodium, ammonium etc. should be able to be converted into organic acid salt; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: the solubleness of basic metal organic acid salt is far above the solubleness of the inorganic acid salts such as potassium, sodium, ammonium, and the solubleness of potassium formiate is much larger than the solubleness of Repone K; Formic acid is added in the clear water of calcic, magnesium, potassium, formate, can effectively increase formate concentration; Magnesium acetate 20 DEG C of solubleness 53g/100g, much larger than magnesium formiate 20 DEG C of solubleness 16.6g/100g, acetic acid can dissolved solids magnesium formiate.
Further, step 3) in, in order to reduce solid substance (as salt is brilliant) quantity, or in order to the inorganic acid salt of potassium, sodium, ammonium etc. is converted into organic acid salt, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant); Then any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid is pressed down in ice agent liquid and solid substance (as salt is brilliant) to regeneration, to reduce solid substance (as salt is brilliant) quantity.
Described formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid should be able to reduce solid substance (as salt is brilliant) quantity effectively, or effectively the inorganic acid salt of calcium, magnesium, potassium, sodium, ammonium etc. should be able to be converted into organic acid salt; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete kinds of organic acids in gas field sewage, minimumly add concentration, maximumly add concentration.
Further, step 3) in, in order to reduce the organic acid loss pressed down when ice agent sewage concentration becomes regeneration to press down ice agent liquid and solid substance (as salt is brilliant), first add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid) to pressing down in ice agent sewage, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt crystalline substance).
Described water-soluble inorganic acid should be able to reduce effectively but the organic acid that ice agent sewage concentration one-tenth regenerates when pressing down ice agent liquid and solid substance (as salt is brilliant) loses; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: hydrochloric acid effectively can dissolve calcium formiate.
Further, step 3) in, in order to reduce solid substance (as salt is brilliant) quantity, first pressing down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance (as salt is brilliant); Then press down in ice agent liquid and solid substance (as salt is brilliant) to regeneration and add water-soluble inorganic acid (example hydrochloric acid, sulfuric acid etc.), to reduce solid substance (as salt is brilliant) quantity.
Described water-soluble inorganic acid should be able to reduce solid substance (as salt is brilliant) quantity effectively; For reaching aforementioned object, as those of ordinary skill in the art, prior art means can be utilized to determine to add concrete water-soluble inorganic acid kind in gas field sewage, minimumly add concentration, maximumly add concentration.
From knowledge known in this field: can calcium formiate be dissolved with hydrochloric acid.
Further, step 4) in, by isolated refuse the matter further harmless treatment of existing method or comprehensive utilization.
Further, step 4) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim organic liquid, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, by cleaning but the utilization of ice agent liquids recovery.
Further, the ice agent liquid that presses down of cleaning is added in natural gas runner.
Further, organic liquid, refuse matter are recycled.
From knowledge known in this field: often containing a small amount of emulsifying hydrocarbon, liquid hydrocarbon in the sewage separated from Sweet natural gas; Solid-liquid separating method, Liquid liquid Separation method are mature technology.
Further, step 4) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim functional chemical agent, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter, organic liquid etc. as existed) that may exist, functional chemical agent and is separated into and clean presses down ice agent liquid, refuse matter, functional chemical agent, by cleaning but the utilization of ice agent liquids recovery.
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
From knowledge known in this field: often containing external functional chemical agent (as additional foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid etc.) in the sewage separated from Sweet natural gas.
Preferably, step 4) in, in order to reclaim foaming water discharge agent, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing foaming water discharge agent regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of foaming water discharge agent and become clean and press down ice agent liquid and foaming water discharge agent; Then by cleaning press down ice agent liquid, foaming water discharge agent recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added in natural gas runner.
Further, reclaimed foaming water discharge agent is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commercial foam water discharge agent is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the upper transparent sewage 380ml that potassium formiate content is about 5wt%, add the foaming water discharge agent of the OP-10 content 50wt% of 20ml, the transparent liquid containing foaming water discharge agent can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 400ml of foaming water discharge agent by electric fan forced ventilation method evaporation concentration to 40ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the foaming water discharge agent that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the larger foaming water discharge agent of upper strata viscosity is isolated with separating funnel, then separated foaming water discharge agent 1ml being added 20ml is about in the transparent sewage of 5wt% from the potassium formiate content extending gas field gas gathering station, still can produce a large amount of foam, can again add in natural gas runner.
Preferably, step 4) in, in order to reclaim inhibiter, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing inhibiter regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of inhibiter and become clean and press down ice agent liquid and inhibiter; Then by cleaning press down ice agent liquid, inhibiter recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed inhibiter is added in natural gas runner.
Further, reclaimed inhibiter is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity inhibiter is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 5wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out.Get the transparent sewage 3980ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the inhibiter of the dodecylbenzyl alkyl dimethyl ammonium chloride content 50wt% of 20ml, the transparent liquid containing inhibiter can be formed, be placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 4000ml of inhibiter by electric fan forced ventilation method evaporation concentration to 400ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the inhibiter that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, isolates the larger inhibiter of upper strata viscosity with separating funnel, is then added by separated inhibiter and extends in gas field gas gathering station sewage, still have good corrosion inhibition, can again add in natural gas runner.
Preferably, step 4) in, in order to reclaim Scale inhibitors, first by solid substance (as brilliant in salt) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist from containing Scale inhibitors regeneration but separate ice agent liquid; And then ice agent liquid separation will be pressed down containing the regeneration of Scale inhibitors and become clean and press down ice agent liquid and Scale inhibitors; Then by cleaning press down ice agent liquid, Scale inhibitors recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed Scale inhibitors is added in natural gas runner.
Further, reclaimed Scale inhibitors is added to step 1) described in press down in ice agent liquid.
From knowledge known in this field: commodity Scale inhibitors is generally in a liquid state, generally moisture 10 ~ 70wt%, decomposes slowly under normal temperature and pressure.
Shop experiment shows: still having good scale-inhibiting properties from extending gas field gas gathering station containing the Scale inhibitors reclaimed the sewage of potassium formiate, can again add in natural gas runner, can be added in the potassium formiate aqueous solution.
Further, step 4) in, cleaner in order to make to press down ice agent liquid, or in order to recycling step 1) described in water soluble polymer, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, water soluble polymer, by cleaning but the recycling of ice agent liquid, water soluble polymer.
Further, the ice agent liquid that presses down of reclaimed cleaning is added in natural gas runner.
Further, reclaimed water soluble polymer liquid is added in natural gas runner.
Further, reclaimed water soluble polymer liquid is added to step 1) described in press down in ice agent liquid.
Further, by the innoxious or comprehensive utilization further of isolated refuse matter.
Further, evaporate the moisture of the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture.
Further, the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture.
Further, reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and reclaim press down ice agent liquid or press down ice agent and make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, by reclaimed water soluble polymer liquid or water soluble polymer solid, water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
From knowledge known in this field: in powdery under polyvinylpyrrolidone normal temperature and pressure, decompose slowly under its aqueous solution normal temperature and pressure.
Shop experiment shows: get the transparent sewage 380ml of prolongation gas field gas gathering station that potassium formiate content is about 5wt%, add the aqueous povidone solution 20ml of 5wt%, can form transparent liquid, is placed in stationary indoors 72 hours not stratified; By this containing transparent liquid 1000ml of polyvinylpyrrolidone by electric fan forced ventilation method evaporation concentration to 100ml, form the concentrated liquid being divided into upper and lower 2 layers, to separate out solid substance salt brilliant simultaneously; Sampling analysis shows that the upper strata of this concentrated liquid is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, leave standstill after this concentrated liquid filtering solid substance, this concentrated liquid is still divided into 2 layers, and upper strata is the aqueous povidone solution that viscosity is larger, and lower floor is the aqueous solution containing potassium formiate.Further experiment shows, the aqueous povidone solution separated still has good suppression natural gas hydrate performance, can again add in natural gas runner.
Further, step 4) in, cleaner in order to make to press down ice agent liquid, or in order to reclaim useful matter, regeneration is pressed down ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid, functional chemical agent, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, functional chemical agent, water soluble polymer liquid, by cleaning but ice agent liquid, organic liquid, functional chemical agent, the utilization of water soluble polymer liquids recovery.
Further, refuse matter is returned utilization.
Further, step 4) in, in order to the ice agent liquid that presses down of cleaning is used for making the solid-state solidliquid mixture pressing down ice agent or press down ice agent, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 4) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 4) in, in order to reduce, the ice agent liquid that presses down of cleaning be made and solid-stately pressed down ice agent or press down the cost of ice agent solidliquid mixture, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 4) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Preferably, step 4) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter, organic liquid that may exist are separated into cleaning ice agent liquid and refuse matter; And then evaporate the clean moisture pressed down in ice agent liquid further with method of ventilation; And then evaporate the clean moisture pressed down in ice agent liquid further by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Shop experiment shows: 25 DEG C, under the indoor conditions of humidity 50 ~ 75%, the moisture of the aqueous solution of potassium formiate content 20wt% can be evaporated by the force ventilated method of electric fan further, the content of potassium formiate can be increased to more than 30wt% by 20wt%; The aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to the solidliquid mixture of potassium formiate-water by electrically heated method, also the aqueous solution of potassium formiate content 1 ~ 75wt% can be dried to sheet potassium formiate solid.
Further, step 4) in, in order to be used for suppressing gas hydrate or/and ice by the ice agent liquid that presses down of cleaning, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Preferably, step 4) in, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter (suspended substance, throw out, floating matter etc. as existed) that may exist, organic liquid are separated into cleaning ice agent liquid, refuse matter, organic liquid; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Further, step 4) in, in order to by with cleaning press down that ice agent liquid makes solid-state press down ice agent or press down the solidliquid mixture of ice agent be used for suppressing gas hydrate or/and ice, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent; And then by make solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
Further, step 4) in, in order to the performance utilizing soluble solid (as salt is brilliant) to suppress gas hydrate or ice, regeneration is pressed down ice agent liquid and solid substance (as salt crystalline substance) adds Sweet natural gas or/and in natural gas runner.
From knowledge known in this field: the aqueous solution of soluble solid (as salt is brilliant) can effectively suppress gas hydrate or ice, can press down together with ice agent liquid with regeneration and add in natural gas runner.
Further, step 4) in, in order to cleaning pressed down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid, first but regeneration is pressed down that ice agent liquid and solid substance (as salt is brilliant) and the refuse matter such as suspended substance, throw out, floating matter that may exist are separated into cleaning ice agent liquid and refuse matter; And then by cleaning press down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 4) in, by refuse matter for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 4) in, in order to reclaim the organic acid salt (as reclaimed calcium formiate from refuse matter) of alkaline-earth metal from refuse matter, being soaked in water or rinsing refuse matter, to reclaim alkaline-earth metal organic acid salt in refuse matter.
It is described that be soaked in water or rinse should be able to alkaline-earth metal organic acid salt in efficient recovery refuse matter; For reaching aforementioned object, as those skilled in the art, the concrete grammar (as by refuse matter again method soluble in water) being soaked in water or rinsing can be determined, salt crystalline substance, suspended substance, throw out, the concrete treatment process of floating matter when can determine with water enchroachment (invasion) bubble or rinse refuse matter.
From knowledge known in this field: the dissolubility difference utilizing calcium formiate, calcium chloride, can effectively separating formic calcium, calcium chloride mixture.
Further, step 4) in, in order to utilize useless material production organic acid (as produced formic acid), soaking with water-soluble inorganic acid (example hydrochloric acid, sulfuric acid, nitric acid etc.) or rinsing refuse matter, to produce organic acid.
Described effectively should be able to produce organic acid with water-soluble inorganic acid soak or flushing; For reaching aforementioned object, as those skilled in the art, the concrete grammar (as refuse matter being dissolved in the method in hydrochloric acid) by water-soluble inorganic acid soak or flushing can being determined, can determine by salt crystalline substance, suspended substance, throw out, the concrete treatment process of floating matter when invading bubble with water-soluble inorganic acid or rinse refuse matter.
From knowledge known in this field: hydrochloric acid can dissolve calcium formiate, generate formic acid and calcium chloride; Utilize existing method can separating formic and calcium chloride.
Beneficial effect of the present invention is as follows: the deficiency that instant invention overcomes existing natural gas production method, effectively can solve gas hydrate or ice and affect the problem that Natural gas extraction produces, effectively can solve environmental pollution and the energy consumption issues of Natural gas extraction production, can effectively eliminate Natural gas extraction produce potential safety hazard, can significantly reduce Natural gas extraction produce fixed investment, cost, energy consumption, from air consumption, management workload; Have and implement easily, safe and reliable, be widely used, promote the excellent features such as easy; Economic benefit, environmental benefit and safety benefit are remarkable.
Embodiment
Embodiment 1
The natural gas exploiting method of a kind of cleaning of the present invention, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and to press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, press down ice agent liquid or but ice agent to recycle to press down in ice agent sewage.
The described ice agent sewage that presses down refers to the sewage containing and press down ice agent, can refer in Sweet natural gas containing the water pressing down ice agent, also can to refer in the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing pressing down the water of ice agent, also can refer to separate from the natural gas runners such as gas well, pipeline, natural gas facility, pipe fitting containing the sewage (or production waste) pressing down ice agent; Also can refer to from Sweet natural gas surface production, accumulating website (as gas gathering station, test satellite location, treatment plant etc.) separate containing pressing down the sewage (or production waste) of ice agent;
Described water can refer to vaporous water, also can refer to liquid water or solid water (as ice crystal, gas hydrate crystal).
From knowledge known in this field: under normal temperature and pressure in solid-state pressing down ice agent (as potassium formiate crystal), press down the ice agent aqueous solution (as the potassium formiate aqueous solution), press down ice agent solid-liquid mixtures (as potassium formiate-water solidliquid mixture) and all can effectively suppress hydrate and ice, all can add in natural gas runner.
From knowledge known in this field: commodity are general in solid-state (in particulate state or sheet as commodity potassium formiate) under pressing down ice agent normal temperature and pressure.
From knowledge known in this field: the Sweet natural gas produced from gas well exploitation generally contains liquid water or vaporous water (being referred to as water or moisture), some Sweet natural gases contain ice crystal or gas hydrate crystal, and some Sweet natural gases are also containing the hydrocarbon (referred to as liquid hydrocarbon) be in a liquid state under normal temperature and pressure; Gas hydrate crystal is formed jointly by water molecules and natural gas molecule (as methane molecule, ethane molecule), the dissociable Cheng Shui of gas hydrate crystal and Sweet natural gas; For making Sweet natural gas normal outer defeated, the vaporous water in Sweet natural gas, liquid water, ice crystal, gas hydrate crystal and liquid hydrocarbon must be separated from Sweet natural gas; The water separated from Sweet natural gas is generally in a liquid state, and is usually referred to as sewage (also known as production waste or gas field sewage); The liquid hydrocarbon separated from Sweet natural gas is commonly called as lightweight oil, and some liquid hydrocarbon separated is at normal temperatures and pressures in emulsified state (referred to as emulsifying hydrocarbon); Be ripe Natural gas extraction production technology by the method that water, liquid hydrocarbon are separated from Sweet natural gas, method water and liquid hydrocarbon separated also is ripe Natural gas extraction production technology; The emulsifying hydrocarbon separated from Sweet natural gas is generally separated into sewage and liquid hydrocarbon more further, and method emulsifying hydrocarbon being separated into sewage and liquid hydrocarbon is also ripe Natural gas extraction production technology.
From knowledge known in this field: press down ice agent or press down the water absorbability of the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) strong, the vaporous water (also known as water vapour or moisture) in Sweet natural gas can be absorbed, reduce the water dew point of Sweet natural gas; Press down ice agent (as potassium formiate) very easily water-soluble, the solubleness in water is far above its solubleness in oil; Press down the ice agent aqueous solution (as the potassium formiate aqueous solution) very easily miscible with water; Pressing down ice agent or pressing down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) in natural gas runner add Sweet natural gas or/and can melt Sweet natural gas or/and gas hydrate, ice in natural gas runner; Add Sweet natural gas or/and in natural gas runner press down ice agent or press down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) inevitable with Sweet natural gas or/and together with liquid water in natural gas runner is miscible in automatically; When Sweet natural gas or/and the water in natural gas runner is from Sweet natural gas or/and when separating natural gas runner, add Sweet natural gas or/and in natural gas runner press down ice agent or press down the ice agent aqueous solution (as potassium formiate or the potassium formiate aqueous solution) inevitable with Sweet natural gas or/and separate together with water in natural gas runner, form the sewage containing pressing down ice agent; When emulsifying hydrocarbon is separated into sewage and liquid hydrocarbon, pressing down ice agent (as potassium formiate or the potassium formiate aqueous solution) and must enter in sewage contained by it, formed containing pressing down the sewage of ice agent.
Shop experiment shows: containing pressing down pressing down the ice agent aqueous solution and all effectively can reducing the freezing point of water of ice agent 1 ~ 75wt%, all effectively can suppress the generation of gas hydrate and ice.
From knowledge: press down ice agent (as potassium formiate) economic worth higher, have wide range of applications.
Shop experiment shows: with method of ventilation from containing press down ice agent sewage reclaim press down ice agent liquid, and with ventilate and the method for any associating of heating from pressing down ice agent crystal containing what reclaim the sewage pressing down ice agent, press down ice agent-water solidliquid mixture and all can again add in gas well or gathering pipeline, all can effectively prevent the natural G&W in gas well or gathering pipeline from forming gas hydrate or ice.
For the concentrated sewage extending gas field gas gathering station and contain potassium formiate that ventilates.
Laboratory experiment shows: be placed in stationary indoors and occur precipitated and separated by from extending the isolated muddy sewage being about 1wt% containing potassium formiate in gas field gas gathering station Sweet natural gas after 1 ~ 3 day, top is transparent sewage, and bottom is throw out; Get the upper transparent sewage 200ml that potassium formiate content is about 1wt% and be placed in furnace pot, temperature 0 ~ 10 DEG C, humidity 45 ~ 65%, without under the outdoor experiment condition of direct sunlight illumination, with natural ventilating method evaporation 5 ~ 10 days, sewage volume in furnace pot will be reduced to 40ml by 200ml reduction, is namely condensed into the potassium formiate aqueous solution that potassium formiate content is about 5wt%.Further test is as follows: this is condensed into the potassium formiate aqueous solution that potassium formiate content is about 5wt% and is divided into 2 laboratory samples, wherein 1 laboratory sample adds sodium hydroxide removal calcium ions and magnesium ions and adjusts pH value to 11, then measure its zero pour (or freezing point) with filter paper filtering, another 1 laboratory sample is as blank sample and measure its zero pour (or freezing point); Result shows: the zero pour (or freezing point) of 2 laboratory samples is substantially suitable, therefore the two suppresses gas hydrate (or ice), melts the effect of gas hydrate or ice substantially quite, all can again add in gas well or gathering pipeline for suppressing gas hydrate or ice; That is whether the potassium formiate aqueous solution being about 5wt% by the potassium formiate content of the upper transparent sewage concentration containing potassium formiate adds the effect that sodium hydroxide does not affect its suppression gas hydrate or ice.
From knowledge known in this field: domestic gas well, the sewage that gas gathering station produces had is limpid transparent; Sewage that some gas wells, gas gathering station produce is muddy opaque and containing a large amount of tiny solid particle (as formation sands, mud, dirt crystalline substance, iron rust etc.), as Sebei Gas Field, qinghai gas well goes out husky serious, sewage that gas well produces contains a large amount of mud (clay), flour sand; Muddy opaque sewage, after natural quiescent setting, is namely layered as transparent sewage and throw out; Gas well, gathering pipeline to pressing down the transparency of ice agent liquid (as potassium formiate or the potassium formiate aqueous solution), solid content, solid substance geometrical dimension (as particle diameter) be not particularly limited, the foreign matter content pressing down ice agent is also not particularly limited; By muddiness press down ice agent liquid (the potassium formiate aqueous solution as muddiness) or containing a small amount of fine particle, solid substance press down ice agent liquid (as containing a small amount of sodium-chlor, calcium chloride the potassium formiate aqueous solution) add in gas well, gathering pipeline be allow, by sodium chloride-containing, calcium chloride impurity press down ice agent add in gas well, gathering pipeline be also allow.
From knowledge known in this field: domestic at present have the open application precedent and open source information that are directly added in gas well, gathering pipeline by calcium chloride water and suppress gas hydrate or ice; The production waste that gas well, gas gathering station produce is mainly from stratum, and salinity is higher, and itself is containing mineral substance such as a large amount of calcium magnesium sodium, if the salinity of Sulige gas field gas gathering station of Soviet Union production waste is up to 40000 ~ 80000mg/L; Gas well, gathering pipeline are not particularly limited the content of mineral substances such as calcium magnesium sodium in ice agent (as the potassium formiate aqueous solution) that press down added wherein, by containing the mineral substance such as calcium magnesium sodium to press down that ice agent liquid (the potassium formiate aqueous solution as calcium-magnesium-containing sodium ion) adds in gas well, gathering pipeline be permission; Press down the content of mineral substances such as the calcium magnesium sodium in ice agent and do not affect the beneficial effect pressing down ice agent and suppress hydrate or ice, also do not affect it and add beneficial effect in natural gas runner.
From knowledge known in this field: 20 DEG C of calcium formiate solubleness are 16.6g/100g, 20 DEG C of magnesium formiate solubleness are 14.4g/100g, and calcium formiate or the magnesium formiate aqueous solution all effectively can reduce the freezing point of water, effectively can suppress gas hydrate; Even if after being all converted into calcium formiate or magnesium formiate containing the potassium formiate in the transparent gas field sewage of potassium formiate 5wt%, calcium formiate or magnesium formiate solid also can not be separated out, still can effectively suppress gas hydrate and ice.
From knowledge known in this field: the ice agent liquid (as the potassium formiate aqueous solution) that presses down reclaimed from the sewage of 1 implication well (or pipeline) can be used in suppressing hydrate or ice in another 1 implication well (or pipeline), gas well, gathering pipeline to add wherein press down ice agent liquid or press down the source of ice agent, the mode of production is not particularly limited.
Embodiment 2
Repeat embodiment 1, difference is:
Step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent.
Step 1) in, described press down ice agent and to refer under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them; Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 3
Repeat embodiment 1,2, difference is: step 1) in, described press down contained by ice agent liquid to press down ice agent content be 1 ~ 78wt%.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 4
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down refers to the solidliquid mixture containing and press down ice agent.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 5
Repeat embodiment 1, difference is:
Step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing aid for preventing and controlling natural gas hydrate.
Step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Described aid for preventing and controlling natural gas hydrate refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
From knowledge known in this field: current useful calcium chloride suppresses the open precedent of gas hydrate, but domesticly also do not use magnesium chloride at present, the open precedent of sodium chloride inhibition gas hydrate, also not from chloride containing calcium, magnesium chloride, calcium chloride is recycled in the gas field sewage of sodium-chlor, magnesium chloride, the precedent of sodium-chlor and open source information, will from chloride containing calcium yet, magnesium chloride, the calcium chloride reclaimed in the gas field sewage of sodium-chlor, magnesium chloride, sodium-chlor adds in natural gas runner again to prevent from being formed precedent and the open source information of gas hydrate or ice.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 6
Repeat embodiment 1,5, difference is: step 1) in, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 7
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 8
Repeat embodiment 1, difference is:
Step 1) in, the described ice agent liquid that presses down also can refer to the aqueous solution containing anti-blocking agent.
Step 1) in, described press down ice agent and also can refer under normal temperature and pressure in solid-state anti-blocking agent.
Described anti-blocking agent refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 9
Repeat embodiment 1,8, difference is: step 1) in, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Embodiment 10
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down also can refer to solidliquid mixture containing anti-blocking agent.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 11
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down refers to the alcoholic solution containing and press down ice agent.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 12
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down refers to the alcohol ethereal solution containing and press down ice agent.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 13
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
From knowledge known in this field: potassium formiate is dissolved in ethanol; Shop experiment shows, potassium formiate is dissolved in butyl glycol ether, diethylene glycol ether, butyl, glycerine.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 14
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
From knowledge known in this field: urea is dissolved in ethanol; Shop experiment shows, urea is dissolved in butyl glycol ether, diethylene glycol ether, butyl, glycerine.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 15
Repeat embodiment 1, difference is:
Step 1) in, described presses down the aqueous solution that ice agent liquid refers to containing water-soluble superpolymer.
Step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state water soluble polymer.
Described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 16
Repeat embodiment 1,15, difference is: step 1) in, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
Embodiment 17
Repeat embodiment 1, difference is: step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid refers to containing water-soluble superpolymer.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 18
Repeat embodiment 1, difference is: step 1) in, the described ice agent that presses down refers to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 19
Repeat embodiment 1, difference is: step 1) in, described press down ice agent and also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 20
Repeat embodiment 1, difference is: step 1) in, the described ice agent liquid that presses down also can refer to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 21
Repeat embodiment 1-20, difference is:
Ice agent liquid will be pressed down or press down ice agent, inhibiter and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, inhibiter with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Laboratory experiment shows, presses down after ice agent liquid adds inhibiter and all can form a large amount of foam, all can reduce the density pressing down ice agent liquid, all can reduce and press down the static pressure of ice agent liquid in gas well, all be conducive to Sweet natural gas vertical flowing to well head from shaft bottom.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 22
Repeat embodiment 21, difference is:
Described inhibiter also can refer to or comprise polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 23
Repeat embodiment 21,22, difference is: first will press down ice agent liquid or but ice agent adds Sweet natural gas or/and in natural gas runner, and then inhibiter is added Sweet natural gas or/and in natural gas runner.
Embodiment 24
Repeat embodiment 21,22, difference is: first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner.
Embodiment 25
Repeat embodiment 21,22, difference is: will press down ice agent liquid or but ice agent, inhibiter add Sweet natural gas or/and in natural gas runner simultaneously.
Embodiment 26
Repeat embodiment 1-20, difference is: step 1) in, ice agent liquid will be pressed down or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, whipping agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.
Described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: any one cats product, nonionogenic tenside, zwitterionics all have good foaming power; Same after any one cats product or nonionogenic tenside or zwitterionics mix with any one anion surfactant have good foaming power.
Embodiment 27
Repeat embodiment 26, difference is: first will press down ice agent liquid or but ice agent adds Sweet natural gas or/and in natural gas runner, and then whipping agent is added Sweet natural gas or/and in natural gas runner.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 28
Repeat embodiment 26, difference is: first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 29
Repeat embodiment 26, difference is: will press down ice agent liquid or but ice agent, whipping agent add Sweet natural gas or/and in natural gas runner simultaneously.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 30
Repeat embodiment 1-20, difference is: will press down ice agent liquid or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent, Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 31
Repeat embodiment 30, difference is: first will press down ice agent liquid or but ice agent adds Sweet natural gas or/and in natural gas runner, and then Scale inhibitors is added Sweet natural gas or/and in natural gas runner.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 32
Repeat embodiment 30, difference is: first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 33
Repeat embodiment 30, difference is: will press down ice agent liquid or but ice agent, Scale inhibitors add Sweet natural gas or/and in natural gas runner simultaneously.Shop experiment shows, the technical scheme of the present embodiment can realize the cleaner production of Sweet natural gas.
Embodiment 34
Repeat embodiment 1-20,26-33, difference is: described pressing down in ice agent liquid adds inhibiter.
Described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Shop experiment shows: in 57.2g clear water, add 1.8 polyvinylpyrrolidones (or poly-N-V-Pyrol RC) stirring and dissolving, and then add 40g potassium formiate stirring and dissolving, and then add 1g dodecyltrimethyl, homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Embodiment 35
Repeat embodiment 1-25, difference is: described pressing down in ice agent liquid adds whipping agent.
Described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: the OP-10 stirring and dissolving adding 3g in 77g clear water, and then adds 20g potassium formiate stirring and dissolving, can make homogeneous transparent liquid, not stratified stationary indoors 72 hours.
Embodiment 36
Repeat embodiment 1-17,20-21,23-35, difference is: described pressing down in ice agent liquid adds Scale inhibitors.
Shop experiment shows: in the potassium formiate aqueous solution of 50ml concentration 35wt%, add 50ml commodity Scale inhibitors, can form homogeneous transparent liquid, not stratified stationary indoors 72 hours.
Embodiment 37
Repeat embodiment 1-17,20-21,23-36, difference is: described pressing down in ice agent liquid adds inhibiter and whipping agent.
Described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Shop experiment shows: the OP-10 stirring and dissolving adding 2g in 72g clear water, and then add 25g potassium formiate stirring and dissolving, and then add 1g dodecyltrimethyl stirring and dissolving, and homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Shop experiment shows: the OP-10 stirring and dissolving adding 1g in 72g clear water, and then add 1.5g polyvinylpyrrolidone (or poly-N-V-Pyrol RC) stirring and dissolving, and then add 25g potassium formiate stirring and dissolving, and then add 1.5g dodecylbenzyl alkyl dimethyl ammonium chloride stirring and dissolving, homogeneous transparent liquid can be made, not stratified stationary indoors 72 hours.
Embodiment 38
Repeat embodiment 1-17,20-21,23-37, difference is: described pressing down in ice agent liquid adds inhibiter, whipping agent, Scale inhibitors.
Shop experiment shows: will press down ice agent liquid, OP-10, dodecylbenzyl alkyl dimethyl ammonium chloride, commodity Scale inhibitors mix and chemical reaction does not occur, and can add in natural gas runner.Shop experiment shows, the technical scheme of the present embodiment all can realize the cleaner production of Sweet natural gas.
Embodiment 39
Repeat embodiment 1, difference is: step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Described natural ventilating method refers to and allows natural air or wind pass through the method for ventilation pressing down the ice agent sewage water surface, as allowed air pass through from containing the ice agent sewage water surface that presses down pressing down ice agent or to allow wind directly naturally blow over from pressing down the ice agent sewage water surface, etc.
Described method of ventilation of exposing to the weather refers to and allows natural air (or wind) through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage, as allowed air pass through from pressing down the ice agent sewage water surface and allow solar radiation press down ice agent sewage or allow wind directly naturally blow over from pressing down the ice agent sewage water surface and to allow solar radiation press down ice agent sewage, etc.
Described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, spray in the air as ice agent sewage will be pressed down by the method for spray or spraying, or allow press down ice agent sewage trickle in atmosphere, or allow and press down the natural ventilating method that drips in atmosphere of ice agent sewage, as utilized air height, temperature, density relationship is pressing down above ice agent sewage or construction air channel, side, chimney or other types building are to form the natural ventilating method of natural air exhaust phenomenon, air and the natural ventilating method pressing down ice agent waste water area is increased as utilized capillarity, etc..
Described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water, press down the ice agent sewage water surface as forced airflow warp with wind-powered machine (as fan) or press down the method for ventilation of ice agent sewage inside, the method of ventilation that ice agent sewage foam inside finally returns air is again pressed down as forced air or rare gas element (as nitrogen, combustion gas, stack gas, carbonic acid gas etc.) to enter with compressor, etc.
Embodiment 40
A kind of Sweet natural gas clean preparation method, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: the moisture pressing down ice agent sewage with method of ventilation evaporation, press down ice agent liquid or but ice agent to recycle to press down in ice agent sewage.
Embodiment 41
A kind of Sweet natural gas clean preparation method, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration one-tenth and regenerate but ice agent liquid and solid substance;
3) isolation of purified: regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, presses down the utilization of ice agent liquids recovery by cleaning.
Further, the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
Further, step 1) in, the described ice agent liquid that presses down refers to the solidliquid mixture containing and press down ice agent.
Further, step 1) in, described press down ice agent and to refer under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
Further, step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
Further, described aid for preventing and controlling natural gas hydrate refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
Further, step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
Further, step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing anti-blocking agent.
Further, step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state anti-blocking agent.
Further, described anti-blocking agent refers to urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
Further, step 1) in, the described ice agent liquid that presses down refers to containing pressing down the alcoholic solution of ice agent or containing the alcohol ethereal solution pressing down ice agent.
Further, step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
Further, step 1) in, described presses down the aqueous solution that ice agent liquid refers to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
Further, step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid refers to containing water-soluble superpolymer.
Further, step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state water soluble polymer.
Further, described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
Further, step 1) in, the described ice agent that presses down refers to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
Further, step 1) in, the described ice agent that presses down refers to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
Further, step 1) in, the described ice agent liquid that presses down refers to potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
Further, step 1) in, ice agent liquid will be pressed down or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with inhibiter with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
Further, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter be added Sweet natural gas or/and in natural gas runner.
Further, first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Further, ice agent liquid will be pressed down or press down ice agent, inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Further, described inhibiter refers to or comprises polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1, 1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
Further, step 1) in, ice agent liquid will be pressed down or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with whipping agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
Further, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent be added Sweet natural gas or/and in natural gas runner.
Further, first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Further, ice agent liquid will be pressed down or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, ice agent liquid will be pressed down or press down ice agent and Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
Further, first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors be added Sweet natural gas or/and in natural gas runner.
Further, first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
Further, ice agent liquid will be pressed down or press down ice agent and Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
Further, step 1) in, inhibiter is added in described pressing down in ice agent liquid;
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
Further, step 1) described in press down in ice agent liquid and add whipping agent;
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, Scale inhibitors is added in described pressing down in ice agent liquid.
Further, step 1) in, inhibiter and whipping agent are added in described pressing down in ice agent liquid;
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product;
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
Further, step 1) in, inhibiter, whipping agent and Scale inhibitors are added in described pressing down in ice agent liquid.
Further, step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
Further, step 2) in, adding crystalline material agglomerate or/and make to press down the formation speed that ice agent sewage method that is static or sluggish flow accelerates solid substance with to pressing down in ice agent sewage, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance;
Described crystalline material agglomerate refers to containing any one or any two or more mixing in the material of vegetable fibre, wire, metal strip thing, sandstone, brick and tile, salt grain.
Further, step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Concentrated will press down ice agent sewage again and deliver to another one place or website, concentratedly will press down ice agent sewage and make regeneration further and press down ice agent liquid and solid substance.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Again the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
Further, step 2) in, first evaporate with method of ventilation the moisture pressing down ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Again but solid substance that is concentrated that may exist in ice agent sewage, suspended substance, throw out, floating matter refuse matter are separated; And then the concentrated ice agent sewage that presses down after being separated refuse matter is delivered to another one place or website; And then be separated the concentrated moisture pressed down in ice agent sewage after refuse matter with method of ventilation evaporation, concentrated after being separated refuse matter is pressed down ice agent sewage and be condensed into regeneration further and press down ice agent liquid and solid substance.
Further, step 2) in, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, will press down ice agent sewage concentration and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then use heating means evaporation concentration in gas gathering station or near gas gathering station but the moisture in ice agent sewage, concentratedly will press down ice agent sewage and be condensed into regeneration further but ice agent liquid and solid substance.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website, but the concentrated ice agent sewage that presses down is made into regeneration ice agent liquid and solid substance.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
Further, step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then pressing down the moisture in ice agent sewage by method of ventilation evaporation concentration, reduction is concentrated further presses down ice agent sewage volume; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
Further, step 2) in, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance; Then any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid is pressed down in ice agent liquid and solid substance to regeneration, reduction solid substance quantity.
Further, step 2) in, first add water-soluble inorganic acid to pressing down in ice agent sewage, and then press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
Further, step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance; Then press down in ice agent liquid and solid substance to regeneration and add water-soluble inorganic acid, reduction solid substance quantity.
Further, step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into and clean presses down ice agent liquid, refuse matter and organic liquid, cleaning pressed down the utilization of ice agent liquids recovery.
Further, the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, functional chemical agent and is separated into and clean presses down ice agent liquid, refuse matter and functional chemical agent, cleaning pressed down the utilization of ice agent liquids recovery;
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
Further, step 3) in, first solid substance and the refuse matter that may exist are pressed down ice agent liquid from the regeneration containing inhibiter and separate; And then ice agent liquid separation will be pressed down containing the regeneration of inhibiter and become clean and press down ice agent liquid and inhibiter; Then by cleaning press down ice agent liquid, inhibiter recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added Sweet natural gas or/and in natural gas runner; Reclaimed inhibiter is added Sweet natural gas or/and in natural gas runner; Or reclaimed inhibiter is added into step 1) described in press down in ice agent liquid.
Further, step 3) in, first solid substance and the refuse matter that may exist are pressed down ice agent liquid from the regeneration containing Scale inhibitors and separate; And then ice agent liquid separation will be pressed down containing the regeneration of Scale inhibitors and become clean and press down ice agent liquid and Scale inhibitors; Then by cleaning press down ice agent liquid, Scale inhibitors recycle.
Further, the ice agent liquid that presses down of reclaimed cleaning is added Sweet natural gas or/and in natural gas runner; Reclaimed Scale inhibitors is added Sweet natural gas or/and in natural gas runner; Or reclaimed Scale inhibitors is added into step 1) described in press down in ice agent liquid.
Further, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, water soluble polymer, cleaning pressed down ice agent liquid, water soluble polymer recycling.
Further, the ice agent liquid that presses down of reclaimed cleaning is added Sweet natural gas or/and in natural gas runner; Reclaimed water soluble polymer liquid is added Sweet natural gas or/and in natural gas runner.
Further, reclaimed water soluble polymer liquid is added into step 1) described in press down in ice agent liquid.
Further, evaporate the moisture of the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture; Or the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture; Or reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
Further, by reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture with reclaim press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, by reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
Further, step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid, functional chemical agent, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, functional chemical agent, water soluble polymer liquid, cleaning pressed down ice agent liquid, organic liquid, functional chemical agent, the utilization of water soluble polymer liquids recovery.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter, organic liquid that may exist and is separated into clean ice agent liquid and refuse matter; And then evaporate the clean moisture pressed down in ice agent liquid further with method of ventilation; And then evaporate the clean moisture pressed down in ice agent liquid further by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent; And then by make solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
Further, step 3) in, regeneration is pressed down ice agent liquid and solid substance adds Sweet natural gas or/and in natural gas runner.
Further, step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by cleaning press down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 3) in, by refuse matter for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
Further, step 3) in, be soaked in water or rinse refuse matter, reclaiming alkaline-earth metal organic acid salt in refuse matter.
Further, step 3) in, by water-soluble inorganic acid soak or flushing refuse matter, to produce organic acid.
Shop experiment shows, all technical schemes of the present embodiment all can realize the cleaner production of Sweet natural gas.
Embodiment 42
A kind of Sweet natural gas clean preparation method, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration one-tenth and regenerate but ice agent liquid and solid substance;
4) isolation of purified: regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, presses down the utilization of ice agent liquids recovery by cleaning.
Shop experiment shows, the technical scheme of the present embodiment all can realize the cleaner production of Sweet natural gas.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.

Claims (192)

1. a Sweet natural gas clean preparation method, is characterized in that, is made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and to press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, recycle to press down and press down ice agent liquid or but ice agent in ice agent sewage.
2. a kind of Sweet natural gas clean preparation method according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent.
3. a kind of Sweet natural gas clean preparation method according to claim 2, is characterized in that: the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
4. a kind of Sweet natural gas clean preparation method according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the solidliquid mixture containing and press down ice agent.
5. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1-4, it is characterized in that: step 1) in, describedly press down ice agent and refer to or to comprise under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
6. a kind of Sweet natural gas clean preparation method according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing aid for preventing and controlling natural gas hydrate.
7. a kind of Sweet natural gas clean preparation method according to claim 6, is characterized in that: the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
8. a kind of Sweet natural gas clean preparation method according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
9. a kind of Sweet natural gas clean preparation method according to claim 1, is characterized in that: step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
10., according to any one described Sweet natural gas clean preparation method arbitrary in claim 6-9, it is characterized in that: described aid for preventing and controlling natural gas hydrate refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
11. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing anti-blocking agent.
12. a kind of Sweet natural gas clean preparation methods according to claim 11, is characterized in that: the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
13. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing anti-blocking agent.
14. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: described press down ice agent and refer under normal temperature and pressure in solid-state anti-blocking agent.
15., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 11-14, is characterized in that: described anti-blocking agent refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
16. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the alcoholic solution containing and press down ice agent, or containing pressing down the alcohol ethereal solution of ice agent.
17. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
18. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
19. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, described presses down the aqueous solution that ice agent liquid refers to containing water-soluble superpolymer.
20. a kind of Sweet natural gas clean preparation methods according to claim 19, is characterized in that: the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
21. any one Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid refers to containing water-soluble superpolymer.
22. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state water soluble polymer.
23. any one Sweet natural gas clean preparation methods according to claim 19-22, it is characterized in that: described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
24. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the any one or any two or more mixtures mixed with water soluble polymer arbitrary proportion in volatile salt.
25. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
26. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
27. any one Sweet natural gas clean preparation methods according to claim 1-4,6-8,11-13,16-21,26, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with inhibiter with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
28. a kind of Sweet natural gas clean preparation methods according to claim 27, is characterized in that:
First will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter will be added Sweet natural gas or/and in natural gas runner.
29. a kind of Sweet natural gas clean preparation methods according to claim 27, is characterized in that: first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
30. a kind of Sweet natural gas clean preparation methods according to claim 27, is characterized in that: will press down ice agent liquid or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
31. any one Sweet natural gas clean preparation methods according to claim 27-30, is characterized in that: described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
32. a kind of Sweet natural gas clean preparation methods according to claim 27-30, is characterized in that: described inhibiter refers to or comprises polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1,1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
33. according to any one described Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with whipping agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
34. a kind of Sweet natural gas clean preparation methods according to claim 33, is characterized in that:
First will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent will be added Sweet natural gas or/and in natural gas runner.
35. a kind of Sweet natural gas clean preparation methods according to claim 33, is characterized in that: first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
36. a kind of Sweet natural gas clean preparation methods according to claim 33, is characterized in that: will press down ice agent liquid or press down ice agent, whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
37. according to any one described Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
38., according to a kind of Sweet natural gas clean preparation method according to claim 37, is characterized in that: first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors are added Sweet natural gas or/and in natural gas runner.
39., according to a kind of Sweet natural gas clean preparation method according to claim 37, is characterized in that: first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
40., according to a kind of Sweet natural gas clean preparation method according to claim 37, is characterized in that: will press down ice agent liquid or press down ice agent, Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
41., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, is characterized in that: inhibiter is added in described pressing down in ice agent liquid.
42. a kind of Sweet natural gas clean preparation methods according to claim 41, is characterized in that: described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
43., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, is characterized in that: whipping agent is added in described pressing down in ice agent liquid.
44., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 33-36,43, is characterized in that: described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
45., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, is characterized in that: Scale inhibitors is added in described pressing down in ice agent liquid.
46., according to any one described Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, is characterized in that: inhibiter and whipping agent are added in described pressing down in ice agent liquid.
47. a kind of Sweet natural gas clean preparation methods according to claim 46, is characterized in that: described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product;
Described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
48., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1-4,6-8,11-13,16-21,26, is characterized in that: inhibiter, whipping agent and Scale inhibitors are added in described pressing down in ice agent liquid.
49. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
50. a kind of Sweet natural gas clean preparation methods according to claim 49, is characterized in that: described natural ventilating method refers to and allows natural air or wind through pressing down the method for ventilation of the ice agent sewage water surface.
51. a kind of Sweet natural gas clean preparation methods according to claim 49, is characterized in that: described method of ventilation of exposing to the weather refers to and allows natural air or wind through pressing down the ice agent sewage water surface and allowing solar radiation press down the method for ventilation of ice agent sewage.
52. a kind of Sweet natural gas clean preparation methods according to claim 49, is characterized in that: described enhanced natural ventilating method refers to directly or indirectly with the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect.
53. a kind of Sweet natural gas clean preparation methods according to claim 49, is characterized in that: described forced ventilation method be force air or wind flow by the wish of people by artificial method and flow through press down the ice agent sewage water surface or with but the method for ventilation of ice agent waste water.
54. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; And then reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
55. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, recycle and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage.
56. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,55, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage.
57. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,55-56, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage.
58. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, recycle to press down and press down ice agent liquid in ice agent sewage; Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
59. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then concentrated will press down ice agent sewage and deliver to another one place or website, recycle concentrated pressing down and press down ice agent liquid in ice agent sewage; Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
60. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then the moisture pressed down by method of ventilation evaporation concentration in ice agent sewage, recycle concentrated pressing down and press down ice agent liquid in ice agent sewage; Preferably, the reclaimed ice agent liquid that presses down is added Sweet natural gas or/and in natural gas runner.
61. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, recycles and presses down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
62. a kind of Sweet natural gas clean preparation methods according to claim 61, is characterized in that: step 2) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down with heating means evaporation in ice agent sewage, recycle and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
63. a kind of Sweet natural gas clean preparation methods according to claim 61, it is characterized in that: step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, recycle and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
64. a kind of Sweet natural gas clean preparation methods according to claim 63, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then press down the moisture in ice agent sewage by heating means evaporation concentration in gas gathering station or near gas gathering station, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
65. a kind of Sweet natural gas clean preparation methods according to claim 63, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
66. a kind of Sweet natural gas clean preparation methods according to claim 63, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by heating means evaporation concentration, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
67. a kind of Sweet natural gas clean preparation methods according to claim 63, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then pressing down the moisture in ice agent sewage by method of ventilation evaporation concentration, reduction is concentrated further presses down ice agent sewage volume; And then press down the moisture in ice agent sewage by heating means evaporation concentration, recycle to concentrate and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage; Preferably, reclaimed pressing down ice agent liquid or press down ice agent is added Sweet natural gas or/and in natural gas runner.
68. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim to press down and press down ice agent liquid in ice agent sewage; Then reclaimed is pressed down ice agent liquid for the production of the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
69. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,68, it is characterized in that: the moisture pressed down in ice agent liquid reclaimed with heating means evaporation, the reclaimed ice agent liquid that presses down is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
70. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,61,68, it is characterized in that: the moisture pressed down in ice agent liquid that the method evaporation of combining arbitrarily by method of ventilation and heating means is reclaimed, the reclaimed ice agent liquid that presses down is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
71. a kind of Sweet natural gas clean preparation methods according to claim 70, is characterized in that: first with the moisture pressed down in ice agent liquid that method of ventilation evaporation is reclaimed; And then evaporate the reclaimed moisture pressed down in ice agent liquid further by heating means, the reclaimed ice agent liquid that presses down is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
72., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 68-71, is characterized in that: by with pressing down of reclaiming, ice agent liquid makes, the solid-state solidliquid mixture pressing down ice agent or press down ice agent adds Sweet natural gas or/and in natural gas runner.
73., according to a kind of Sweet natural gas clean preparation method described in claim 1, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, reclaim to press down and press down ice agent liquid in ice agent sewage; Then by reclaimed press down ice agent liquid or press down ice agent for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
74. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 24-26, it is characterized in that: first press down the moisture in ice agent sewage with method of ventilation evaporation, make to press down ice agent sewage and be separated into top superpolymer aqueous layer and bottom is concentrated presses down ice agent sewage layer; And then the superpolymer aqueous solution on top is separated with the concentrated ice agent sewage that presses down of bottom, recycle the superpolymer aqueous solution respectively and press down ice agent liquid or press down ice agent.
75., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 22-23,74, is characterized in that: the moisture evaporating the isolated superpolymer aqueous solution with method of ventilation, recycle water soluble polymer.
76., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 22-23,74, is characterized in that: the moisture evaporating the isolated superpolymer aqueous solution by the method that method of ventilation and heating means are combined arbitrarily, recycle water soluble polymer.
77. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 74-76, it is characterized in that: by reclaimed water soluble polymer or its aqueous solution with press down ice agent or any one or any two or more material pressed down in ice agent liquid or its aqueous solution and add in natural gas runner, for suppressing gas hydrate or/and ice.
78. according to a kind of Sweet natural gas clean preparation method described in claim 74, it is characterized in that: first by reclaimed water soluble polymer or its aqueous solution with press down ice agent or press down any one or any two or more material of ice agent liquid or its aqueous solution makes solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
79. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down with method of ventilation evaporation in ice agent sewage, recycle and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage.
80. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance; And then to pressing down in ice agent liquid and solid substance any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, to reduce solid substance quantity.
81. a kind of Sweet natural gas clean preparation methods according to claim 1, it is characterized in that: step 2) in, first add water-soluble inorganic acid to pressing down in ice agent sewage, and then the moisture pressed down with method of ventilation evaporation in ice agent sewage, recycle and press down pressing down ice agent liquid or pressing down ice agent in ice agent sewage.
82. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid and solid substance; And then add water-soluble inorganic acid, to reduce solid substance quantity to pressing down in ice agent liquid and solid substance.
83. a kind of Sweet natural gas clean preparation methods according to claim 1, is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then be separated pressing down ice agent liquid or pressing down ice agent with the organic liquid that may exist; And then press down ice agent liquid by isolated or press down ice agent and organic liquid recycling; Preferably, by isolated press down ice agent liquid or press down ice agent add in natural gas runner.
84., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,83, is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then be separated pressing down ice agent liquid or pressing down ice agent with the functional chemical agent that may exist; And then press down ice agent liquid by isolated or press down ice agent and functional chemical agent recycling;
Described functional chemical agent comprises foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent or sand cleaning fluid.
85. a kind of Sweet natural gas clean preparation methods according to Claim 8 described in 4, is characterized in that: add in natural gas runner by reclaimed pressing down ice agent liquid or press down ice agent; Reclaimed functional chemical agent is added in natural gas runner.
86. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,27-32,41-42,46,48,84, it is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then will press down ice agent liquid or press down ice agent and be separated with inhibiter; And then press down ice agent liquid by isolated or press down ice agent and inhibiter recycling.
87. a kind of Sweet natural gas clean preparation methods according to Claim 8 described in 6, is characterized in that: add in natural gas runner by the reclaimed ice agent liquid that presses down; Reclaimed inhibiter is added in natural gas runner.
88. a kind of Sweet natural gas clean preparation methods according to Claim 8 described in 6, is characterized in that: reclaimed inhibiter is added to step 1) described in press down in ice agent liquid.
89. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,33-35,44,46,48,84, it is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then will press down ice agent liquid or press down ice agent and be separated with foaming water discharge agent; And then press down ice agent liquid by isolated or press down ice agent and foaming water discharge agent recycling.
90. a kind of Sweet natural gas clean preparation methods according to Claim 8 described in 9, is characterized in that: add in natural gas runner by the reclaimed ice agent liquid that presses down; Reclaimed foaming water discharge agent is added in natural gas runner.
91. a kind of Sweet natural gas clean preparation methods according to Claim 8 described in 9, is characterized in that: reclaimed foaming water discharge agent is added to step 1) described in press down in ice agent liquid.
92. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 1,37-40,45,48, it is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then will press down ice agent liquid or press down ice agent and be separated with Scale inhibitors; And then press down ice agent liquid by isolated or press down ice agent and Scale inhibitors recycling.
93., according to a kind of Sweet natural gas clean preparation method described in claim 92, is characterized in that: add in natural gas runner by the reclaimed ice agent liquid that presses down; Reclaimed Scale inhibitors is added in natural gas runner.
94., according to a kind of Sweet natural gas clean preparation method described in claim 92, is characterized in that: reclaimed Scale inhibitors is added to step 1) described in press down in ice agent liquid.
95., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 19-26, is characterized in that: step 2) in, first press down the moisture of ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become to press down ice agent liquid or press down ice agent; Then ice agent liquid be will press down or ice agent and water soluble polymer liquid separation pressed down; Press down ice agent liquid by isolated or press down ice agent and the utilization of water soluble polymer liquids recovery again.
96., according to a kind of Sweet natural gas clean preparation method described in claim 95, is characterized in that: add in natural gas runner by the reclaimed ice agent liquid that presses down; Reclaimed water soluble polymer liquid is added in natural gas runner.
97., according to a kind of Sweet natural gas clean preparation method described in claim 95, is characterized in that: add reclaimed water soluble polymer liquid to step 1) described in press down in ice agent liquid.
98., according to a kind of Sweet natural gas clean preparation method described in claim 95, is characterized in that: evaporate the moisture in the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture.
99. according to a kind of Sweet natural gas clean preparation method described in claim 95, it is characterized in that: the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture in the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture.
100., according to a kind of Sweet natural gas clean preparation method described in claim 95, is characterized in that: reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
101. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 95-100, it is characterized in that: pressing down reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture and recovery ice agent liquid or pressing down ice agent and make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
102. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 95-100, it is characterized in that: by reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
103. one kinds of Sweet natural gas clean preparation methods, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: the moisture pressing down ice agent sewage with method of ventilation evaporation, press down ice agent liquid or but ice agent to recycle to press down in ice agent sewage.
104. one kinds of Sweet natural gas clean preparation methods, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contact or mix, formed containing press down ice agent press down ice agent sewage, to reduce the water dew point of Sweet natural gas, prevent from forming gas hydrate or/and ice or the gas hydrate that melt in natural gas runner are or/and ice, make Sweet natural gas smooth flow;
2) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration one-tenth and regenerate but ice agent liquid and solid substance;
3) isolation of purified: regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, presses down the utilization of ice agent liquids recovery by cleaning.
105., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing and press down ice agent; Preferably, the described ice agent content that presses down pressed down contained by ice agent liquid is preferably 1 ~ 78wt%.
106., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the solidliquid mixture containing and press down ice agent.
107. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106, it is characterized in that: step 1) in, described press down ice agent and refer to or to comprise under normal temperature and pressure in any one in solid-state potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate or the mixture of any two or more arbitrary proportion among them.
108., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing aid for preventing and controlling natural gas hydrate; Preferably, the described aid for preventing and controlling natural gas hydrate content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
109., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing aid for preventing and controlling natural gas hydrate.
110., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state aid for preventing and controlling natural gas hydrate.
111., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 108-110, is characterized in that: described aid for preventing and controlling natural gas hydrate refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or the two or more arbitrary proportion mixing in volatile salt.
112., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to the aqueous solution containing anti-blocking agent; Preferably, the described anti-blocking agent content pressed down contained by ice agent liquid is preferably 1 ~ 75wt%.
113., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to solidliquid mixture containing anti-blocking agent.
114., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state anti-blocking agent.
115., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 112-114, is characterized in that: described anti-blocking agent refers to or comprises urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, any one or any two or more and potassium formiate in volatile salt, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the mixture of any one or any two or more arbitrary proportion mixing in cesium acetate.
116., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to containing pressing down the alcoholic solution of ice agent or containing the alcohol ethereal solution pressing down ice agent.
117. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, the alcoholic solution of any one or the two or more arbitrary proportion mixing in wood sugar or alcohol ethereal solution or glycerine solution.
118. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 1) in, the described ice agent liquid that presses down refers to containing urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, two calcium formiate, two magnesium formiate, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, ammonium formiate, calcium formiate, magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, fructose, sucrose, D-MANNOSE, any one or two or more and potassium formiate in wood sugar, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, the alcoholic solution of any one or any two or more arbitrary proportions mixing in cesium acetate or alcohol ethereal solution or glycerine solution.
119., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, described presses down the aqueous solution that ice agent liquid refers to containing water-soluble superpolymer; Preferably, the described water soluble polymer content pressed down contained by ice agent liquid is preferably 0.1 ~ 50wt%.
120., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, described presses down solidliquid mixture or the thick liquid that ice agent liquid refers to containing water-soluble superpolymer.
121., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 1) in, described press down ice agent and refer under normal temperature and pressure in solid-state water soluble polymer.
122. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 119-121, it is characterized in that: described water soluble polymer comprises polyvinylpyrrolidone, poly-N-V-Pyrol RC, the butyl derivative of poly-N-V-Pyrol RC, Natvosol, the multipolymer of N-vinyl caprolactam and N-V-Pyrol RC, the multipolymer of acrylamide and maleimide, the multipolymer of N-vinyl caprolactam and maleimide, the multipolymer of methyl methacrylate and ethyl propenoate and Yi Bing Xi oxazolin, N-vinyl caprolactam, N-V-Pyrol RC and dimethylaminoethyl-1, the multipolymer of 2-ethylidene ester, polyvinyl alcohol, anionic polyacrylamide, the mixture of any one or any two or more arbitrary proportion mixing in cationic polyacrylamide.
123. according to claim 104, in 122, arbitrary described a kind of Sweet natural gas clean preparation method, is characterized in that: step 1) in, the described ice agent that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the mixture of any one or any two or more and water soluble polymer arbitrary proportion mixing in volatile salt.
124. according to claim 104, described in 122, a kind of Sweet natural gas clean preparation method, is characterized in that: step 1) in, the described ice agent that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the solid-state pharmacy post that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made.
125. according to claim 104, described in 122, a kind of Sweet natural gas clean preparation method, is characterized in that: step 1) in, the described ice agent liquid that presses down refers to or comprises potassium formiate, potassium acetate, sodium formiate, sodium acetate, formic acid rubidium, rubidium acetate, cesium formate, cesium acetate, urea, thiocarbamide, diacetic acid potassium, two sodium formiate, sodium Diacetate, two formic acid rubidium, diacetic acid rubidium, two cesium formate, diacetic acid caesium, dehydroacetic acid (DHA) potassium, Sodium dehydroacetate, dehydroacetic acid (DHA) rubidium, dehydroacetic acid (DHA) caesium, potassium lactate, Sodium.alpha.-hydroxypropionate, lactic acid rubidium, lactic acid caesium, calcium lactate, ammonium formiate, calcium formiate, magnesium formiate, two calcium formiate, two magnesium formiate, potassium benzoate, lime acetate, magnesium acetate, diacetic acid calcium, diacetic acid magnesium, dehydroacetic acid (DHA) calcium, dehydroacetic acid (DHA) magnesium, calcium lactate, magnesium lactate, calcium benzoate, magnesium benzoate, fructose, sucrose, D-MANNOSE, wood sugar, magnesium chloride, sodium-chlor, Repone K, Sodium Nitrite, sodium hydroxide, SODIUM PHOSPHATE, MONOBASIC, Neodymium trichloride, cupric chloride, zinc bromide, zinc chloride, zinc iodide, rubidium bromide, rubidium chloride, rubidium fluoride, Manganese dibromide, Sulfothiorine, Potassium Thiosulphate, potassium sulfocyanate, potassiumiodide, potassium hydroxide, potassium phosphate,monobasic, salt of wormwood, calcium nitrite, magnesium nitrite, Calcium Bromide, magnesium bromide, calcium chloride, calcium bromate, magnesium bromate, ammonium iodide, the aqueous solution that any one or any two or more and water soluble polymer arbitrary proportion in volatile salt is made or solidliquid mixture.
126. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with inhibiter with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
127., according to Sweet natural gas clean preparation method a kind of described in claim 126, is characterized in that: first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then inhibiter are added Sweet natural gas or/and in natural gas runner.
128., according to Sweet natural gas clean preparation method a kind of described in claim 126, is characterized in that: first inhibiter is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
129., according to Sweet natural gas clean preparation method a kind of described in claim 126, is characterized in that: will press down ice agent liquid or press down ice agent and inhibiter and add Sweet natural gas or/and in natural gas runner simultaneously.
130., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 126-129, is characterized in that: described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
131., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 126-129, is characterized in that: described inhibiter refers to or comprises polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-8, polyoxyethylated alkyl alcohol-10, polyoxyethylated alkyl alcohol-15, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-20, polyoxyethylated alkyl alcohol-22, polyoxyethylene-1,1-dialkyl group propine alcohol ether, polyethenoxy alkylphenols-7, polyoxethylene octylphenyl phenol ether-10, polyoxyethylene rosin Amine D, polyoxyethylene stearylamine-7, alkyl sodium sulfonate, alkylsulphonic acid ammonium, perfluoro alkyl sulfonic acid sodium, sodium alkyl benzene sulfonate, alkyl toluene sulfonic acids sodium, alkyl-dimethyl ammonium acetic acid inner salt, alkyl ammonium group propionic acid inner salt, alkyl first ammonium propionic acid inner salt, alkyl-dimethyl ammonium propionic acid inner salt, two (polyoxyethylene groups) alkyl ammomium chloride, two (polyoxyethylene groups) alkyl methyl ammonium chloride, the mixture of any one or any two or more arbitrary proportion mixing in dodecylbenzyl alkyl dimethyl ammonium chloride.
132. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with whipping agent with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
133., according to Sweet natural gas clean preparation method a kind of described in claim 132, is characterized in that: first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then whipping agent are added Sweet natural gas or/and in natural gas runner.
134., according to Sweet natural gas clean preparation method a kind of described in claim 132, is characterized in that: first whipping agent is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
135., according to Sweet natural gas clean preparation method a kind of described in claim 132, is characterized in that: will press down ice agent liquid or press down ice agent and whipping agent and add Sweet natural gas or/and in natural gas runner simultaneously.
136., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 132-135, is characterized in that: described whipping agent refers to the mixture of any one or any two or more arbitrary proportion mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
137. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, it is characterized in that: step 1) in, ice agent liquid will be pressed down or press down ice agent and Scale inhibitors and add Sweet natural gas or/and in natural gas runner, allow press down ice agent liquid or press down ice agent with Scale inhibitors with Sweet natural gas or/and vaporous water in natural gas runner, liquid water, ice are or/and gas hydrate contacts or mix, formed contain but ice agent but ice agent sewage.
138., according to Sweet natural gas clean preparation method a kind of described in claim 137, is characterized in that: first will press down ice agent liquid or press down ice agent and add Sweet natural gas or/and in natural gas runner, and then Scale inhibitors are added Sweet natural gas or/and in natural gas runner.
139., according to Sweet natural gas clean preparation method a kind of described in claim 137, is characterized in that: first Scale inhibitors is added Sweet natural gas or/and in natural gas runner, and then will press down ice agent liquid or press down ice agent add Sweet natural gas or/and in natural gas runner.
140., according to Sweet natural gas clean preparation method a kind of described in claim 137, is characterized in that: will press down ice agent liquid or press down ice agent and Scale inhibitors and add Sweet natural gas or/and in natural gas runner simultaneously.
141., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, is characterized in that: step 1) in, inhibiter is added in described pressing down in ice agent liquid;
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product.
142., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, is characterized in that: step 1) in, whipping agent is added in described pressing down in ice agent liquid;
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
143., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, is characterized in that: step 1) in, Scale inhibitors is added in described pressing down in ice agent liquid.
144., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, is characterized in that: step 1) in, inhibiter and whipping agent are added in described pressing down in ice agent liquid;
Preferably, described inhibiter refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of amine salt cationic surfactant, quaternary ammonium salt cationic surfactant, pyridine salt type cats product;
Preferably, described whipping agent refers to or comprises the mixture of any one or any two or more arbitrary proportions mixing of cats product, anion surfactant, nonionogenic tenside, amphoterics.
145., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104-106,108-109,112-113,116-120,125, is characterized in that: step 1) in, inhibiter, whipping agent and Scale inhibitors are added in described pressing down in ice agent liquid.
146. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, described method of ventilation comprises natural ventilating method, any one method of ventilation in method of ventilation of exposing to the weather, enhanced natural ventilating method, forced ventilation method or any conbined usage more than any two kinds of method of ventilations.
147. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, adding crystalline material agglomerate or/and make to press down the formation speed that ice agent sewage method that is static or sluggish flow accelerates solid substance with to pressing down in ice agent sewage, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance;
Described crystalline material agglomerate refers to containing any one or any two or more mixing in the material of vegetable fibre, wire, metal strip thing, sandstone, brick and tile, salt grain.
148. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
149. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,148, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Concentrated will press down ice agent sewage again and deliver to another one place or website, concentratedly will press down ice agent sewage and make regeneration further and press down ice agent liquid and solid substance.
150. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,148-149, it is characterized in that: step 2) in, the moisture in ice agent sewage is first pressed down in gas gathering station or near gas gathering station with method of ventilation evaporation, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Again the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by method of ventilation evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
151. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,150, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressing down ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; Again but solid substance that is concentrated that may exist in ice agent sewage, suspended substance, throw out, floating matter refuse matter are separated; And then the concentrated ice agent sewage that presses down after being separated refuse matter is delivered to another one place or website; And then be separated the concentrated moisture pressed down in ice agent sewage after refuse matter with method of ventilation evaporation, concentrated after being separated refuse matter is pressed down ice agent sewage and be condensed into regeneration further and press down ice agent liquid and solid substance.
152. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, the method evaporation of combining arbitrarily by method of ventilation and heating means presses down the moisture in ice agent sewage, will press down ice agent sewage concentration and become regeneration to press down ice agent liquid and solid substance.
153., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,152, is characterized in that: step 2) in, the moisture in ice agent sewage is first pressed down with method of ventilation evaporation; And then the moisture pressed down in ice agent sewage is evaporated by heating means, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
154. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,152, it is characterized in that: step 2) in, press down the moisture in ice agent sewage in gas gathering station or near gas gathering station with the method evaporation that method of ventilation and heating means are combined arbitrarily, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
155. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,154, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then use heating means evaporation concentration in gas gathering station or near gas gathering station but the moisture in ice agent sewage, concentratedly will press down ice agent sewage and be condensed into regeneration further but ice agent liquid and solid substance.
156. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, first evaporate with method of ventilation the moisture pressed down in ice agent sewage in gas gathering station or near gas gathering station, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website, but the concentrated ice agent sewage that presses down is made into regeneration ice agent liquid and solid substance.
157. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,153,156, it is characterized in that: step 2) in, the moisture in ice agent sewage is first pressed down in gas gathering station or near gas gathering station with method of ventilation evaporation, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
158. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,156-157, it is characterized in that: step 2) in, the moisture in ice agent sewage is first pressed down in gas gathering station or near gas gathering station with method of ventilation evaporation, reduction presses down ice agent sewage volume, is formed to concentrate to press down ice agent sewage; And then the concentrated ice agent sewage that presses down is delivered to another one place or website; And then pressing down the moisture in ice agent sewage by method of ventilation evaporation concentration, reduction is concentrated further presses down ice agent sewage volume; And then press down the moisture in ice agent sewage by heating means evaporation concentration, but the concentrated ice agent sewage that presses down is condensed into regeneration ice agent liquid and solid substance further.
159. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, first to pressing down in ice agent sewage any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
160., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance; Then any one or any two or more mixture added in formic acid, acetic acid, dehydroacetic acid (DHA), lactic acid is pressed down in ice agent liquid and solid substance to regeneration, reduction solid substance quantity.
161. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 2) in, first add water-soluble inorganic acid to pressing down in ice agent sewage, and then the moisture pressed down in ice agent sewage is evaporated with method of ventilation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance.
162., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 2) in, first press down the moisture in ice agent sewage with method of ventilation evaporation, ice agent sewage concentration will be pressed down and become regeneration to press down ice agent liquid and solid substance; Then press down in ice agent liquid and solid substance to regeneration and add water-soluble inorganic acid, reduction solid substance quantity.
163. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into and clean presses down ice agent liquid, refuse matter and organic liquid, cleaning pressed down the utilization of ice agent liquids recovery.
164., according to Sweet natural gas clean preparation method a kind of described in claim 163, is characterized in that: added in natural gas runner by the ice agent liquid that presses down of cleaning.
165. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, functional chemical agent and is separated into and clean presses down ice agent liquid, refuse matter and functional chemical agent, cleaning pressed down the utilization of ice agent liquids recovery;
Described functional chemical agent comprises the mixture of any one or any two or more arbitrary proportions of foaming water discharge agent, inhibiter, Scale inhibitors, whipping agent, sand washing agent, sand cleaning fluid.
166. according to claim 126-131,141, arbitrary described a kind of Sweet natural gas clean preparation method in 144-145, it is characterized in that: step 3) in, first solid substance and the refuse matter that may exist are pressed down ice agent liquid from the regeneration containing inhibiter and separate; And then ice agent liquid separation will be pressed down containing the regeneration of inhibiter and become clean and press down ice agent liquid and inhibiter; Then by cleaning press down ice agent liquid, inhibiter recycle.
167., according to Sweet natural gas clean preparation method a kind of described in claim 166, is characterized in that: add in natural gas runner by the ice agent liquid that presses down of reclaimed cleaning; Reclaimed inhibiter is added in natural gas runner; Or reclaimed inhibiter is added into step 1) described in press down in ice agent liquid.
168. according to claim 132-136,142, arbitrary described a kind of Sweet natural gas clean preparation method in 144-145, it is characterized in that: step 3) in, first solid substance and the refuse matter that may exist are pressed down ice agent liquid from the regeneration containing foaming water discharge agent and separate; And then ice agent liquid separation will be pressed down containing the regeneration of foaming water discharge agent and become clean and press down ice agent liquid and foaming water discharge agent; Then by cleaning press down ice agent liquid, foaming water discharge agent recycle.
169., according to Sweet natural gas clean preparation method a kind of described in claim 168, is characterized in that: add in natural gas runner by the ice agent liquid that presses down of reclaimed cleaning; Reclaimed foaming water discharge agent is added in natural gas runner; Or reclaimed foaming water discharge agent is added into step 1) described in press down in ice agent liquid.
170., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 137-140,143,145, is characterized in that: step 3) in, first solid substance and the refuse matter that may exist are pressed down ice agent liquid from the regeneration containing Scale inhibitors and separate; And then ice agent liquid separation will be pressed down containing the regeneration of Scale inhibitors and become clean and press down ice agent liquid and Scale inhibitors; Then by cleaning press down ice agent liquid, Scale inhibitors recycle.
171., according to Sweet natural gas clean preparation method a kind of described in claim 170, is characterized in that: add in natural gas runner by the ice agent liquid that presses down of reclaimed cleaning; Reclaimed Scale inhibitors is added in natural gas runner; Or reclaimed Scale inhibitors is added into step 1) described in press down in ice agent liquid.
172. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 119-125, it is characterized in that: regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, water soluble polymer liquid, cleaning pressed down ice agent liquid, the utilization of water soluble polymer liquids recovery.
173., according to Sweet natural gas clean preparation method a kind of described in claim 172, is characterized in that: add in natural gas runner by the ice agent liquid that presses down of reclaimed cleaning; Reclaimed water soluble polymer liquid is added in natural gas runner.
174., according to Sweet natural gas clean preparation method a kind of described in claim 172, is characterized in that: reclaimed water soluble polymer liquid is added into step 1) described in press down in ice agent liquid.
175., according to Sweet natural gas clean preparation method a kind of described in claim 172, is characterized in that: the moisture evaporating the water soluble polymer liquid reclaimed with method of ventilation, make water soluble polymer solid or solidliquid mixture; Or the method for combining arbitrarily by method of ventilation and heating means evaporates the moisture of the water soluble polymer liquid reclaimed, and makes water soluble polymer solid or solidliquid mixture; Or reclaimed water soluble polymer liquid heat is dry, make water soluble polymer solid or solidliquid mixture.
176. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 172,175, it is characterized in that: by reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture with reclaim press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
177. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 172,175, it is characterized in that: by reclaimed water soluble polymer liquid, water soluble polymer solid or water soluble polymer solidliquid mixture and step 1) described in press down ice agent liquid or press down ice agent make solid-state pharmacy post, then solid-state pharmacy post is added in natural gas runner, for suppressing gas hydrate or/and ice.
178. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid, functional chemical agent, water soluble polymer and is separated into and clean presses down ice agent liquid, refuse matter, organic liquid, functional chemical agent, water soluble polymer liquid, cleaning pressed down ice agent liquid, organic liquid, functional chemical agent, the utilization of water soluble polymer liquids recovery.
179. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
180. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
181. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
182. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then by the method that method of ventilation and heating means are combined arbitrarily, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
183. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163,182, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter, organic liquid that may exist and is separated into clean ice agent liquid and refuse matter; And then evaporate the clean moisture pressed down in ice agent liquid further with method of ventilation; And then evaporate the clean moisture pressed down in ice agent liquid further by heating means, the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent.
184. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
185. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter that may exist, organic liquid and is separated into clean ice agent liquid, refuse matter, organic liquid; And then the ice agent liquid that presses down of cleaning is added Sweet natural gas or/and in natural gas runner.
186. according to Sweet natural gas clean preparation method a kind of described in claim 104, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then the ice agent liquid that presses down of cleaning is made the solid-state solidliquid mixture pressing down ice agent or press down ice agent; And then by make solid-state press down ice agent or press down the solidliquid mixture of ice agent add Sweet natural gas or/and in natural gas runner.
187., according to Sweet natural gas clean preparation method a kind of described in claim 104, is characterized in that: step 3) in, regeneration is pressed down ice agent liquid and solid substance and adds Sweet natural gas or/and in natural gas runner.
188. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, it is characterized in that: step 3) in, first but regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into clean ice agent liquid and refuse matter; And then by cleaning press down ice agent liquid for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
189. according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, it is characterized in that: step 3) in, by refuse matter for the production of fodder additives, chemical fertilizer or organic acid salt, inorganic acid salt, mineral alkali, organic acid, mineral acid any one.
190., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, is characterized in that: step 3) in, be soaked in water or rinse refuse matter, reclaiming alkaline-earth metal organic acid salt in refuse matter.
191., according to described a kind of Sweet natural gas clean preparation method arbitrary in claim 104,163, is characterized in that: step 3) in, by water-soluble inorganic acid soak or flushing refuse matter, produce organic acid.
192. one kinds of Sweet natural gas clean preparation methods, is characterized in that, be made up of following steps:
1) add press down ice agent: will press down ice agent liquid or but ice agent add Sweet natural gas or/and in natural gas runner, allow and press down ice agent liquid or press down ice agent with Sweet natural gas or/and the water in natural gas runner mixes, formed containing press down ice agent press down ice agent sewage, to prevent from forming gas hydrate or/and ice, make Sweet natural gas smooth flow;
2) divide water: will containing press down ice agent press down ice agent sewage from Sweet natural gas or/and separate natural gas runner;
3) ventilate and to anhydrate point: press down the moisture in ice agent sewage with method of ventilation evaporation, will press down ice agent sewage concentration one-tenth and regenerate but ice agent liquid and solid substance;
4) isolation of purified: regeneration is pressed down ice agent liquid and solid substance and the refuse matter such as suspended substance, throw out, floating matter that may exist and is separated into and clean presses down ice agent liquid and refuse matter, presses down the utilization of ice agent liquids recovery by cleaning.
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