CN106395926A

CN106395926A - Gas field produced wastewater reduction and harmless treatment methods

Info

Publication number: CN106395926A
Application number: CN201610842933.4A
Authority: CN
Inventors: 李晟贤; 张军生; 李向东
Original assignee: Beijing Hezhong Beneficial Technology LLC
Current assignee: Beijing Hezhong Beneficial Technology LLC
Priority date: 2016-09-22
Filing date: 2016-09-22
Publication date: 2017-02-15

Abstract

The invention discloses gas field produced wastewater reduction and harmless treatment methods. According to the methods, water is separated from gas field produced wastewater with a desalting process, concentrated gas field produced water is formed, and the volume of the gas field produced water is reduced; meanwhile, the invention also discloses a further concentrated gas field produced wastewater harmless treatment method. With the adoption of the treatment method, defects in existing gas field produced wastewater treatment methods are overcome, the problem of harmless treatment on the gas field produced wastewater can be effectively solved, the problem of pollution environment caused by the gas field produced wastewater can be effectively solved, gas production aids and useful substances in the gas field produced wastewater can be effectively recovered, the cost and the energy consumption for recovery of the gas production aids and useful substances from the gas field produced wastewater can be greatly reduced, and the transportation volume, the transportation cost and the treatment energy consumption and expense of the gas field produced wastewater can be greatly reduced; the method has the advantages of being easy to implement, safe, reliable, wide in application, easy to popularize and the like; the economic benefit and the environmental protection benefit are remarkable.

Description

A kind of gas field recovered water decrement and method for innocent treatment

Technical field

The present invention relates to a kind of natural gas method for treating water cut out.More particularly, to a kind of gas field recovered water decrement and Method for innocent treatment.

Background technology

Natural gas obtains (abbreviation natural gas extraction or natural gas generally by the Development and Production in gas field or the production of gas well Produce), in the Development and Production in gas field or gas exploitation course, often produce a large amount of recovered waters, these recovered waters are commonly referred to as For " gas field recovered water ", sometimes referred to simply as " recovered water ", it is commonly called as " gas field sewage " or " sewage ".

At present, domestic generally gas field recovered water is divided into two big class：One class is the gas field recovered water containing methanol, and a class is not Gas field recovered water containing methanol.

From knowledge known in this field：Gas field recovered water containing methanol is huge with the gas field recovered water difference without methanol Greatly.

Domestic current process do not contain methanol gas field recovered water method be：Gas field recovered water is put together re-injection after process Stratum.But there is following defect in the method：

1) during gas field produced-water reinjection stratum, difficulty is larger, needs higher cost.

From knowledge known in this field：Gas field produced-water reinjection is entirely different with oil field extracted water re-injection, and gas field produces Water re-injection will not produce any economic benefit, not have any return and need huge cost, and oil field extracted water can produce huge Economic benefit, obtain huge return.Gas field produced-water reinjection is technical scheme that is forced and taking, and oil field extracted water returns Note is the positive technical scheme taken；Oil reservoir needs water filling to supplement energy, can increase the oil-producing of oil reservoir to oil-bearing stratum flooding Ability, the recovered water in therefore domestic all at present oil fields all injects in oil reservoir, and typically inadequate, generally requires to supplement to oil reservoir Inject a large amount of secondary waters, i.e. oil field extracted water inadequate re-injection；Gas-bearing formation is then contrary with oil reservoir, does not allow to inject water, to gas-bearing formation note Water can produce serious water lock problem and lead to gas-bearing formation that significantly the underproduction is even scrapped, the recovered water in therefore domestic all at present gas fields All it is not injected into gas-bearing formation, but inject other deep formations anaerogenic and stop it from entering gas-bearing formation with various methods.Because of gas field Extraction water salinity is high, typically contain a large amount of chemical agents or noxious substance, and therefore gas field recovered water does not allow to inject superficial stratum, and one As all be injection the formation rock more than 2000 meters for the depth in；Formation rock porosity very little due to this depth (does not typically surpass Cross 10%), the ability of receiving gas field recovered water is extremely limited to solve gas it is therefore desirable to putting into the special brill of huge fund and building a lot of water injection wells The re-injection problem of field recovered water；Therefore for gas-bearing formation, recovered water only need to go out to enter；The recovered water in domestic at present each gas field returns Note difficulty greatly, has had a strong impact on the Development and Production in gas field.

2), before the produced-water reinjection of gas field, need first to will be dispersed in gas field gas field recovered water everywhere with being concentrated to specified re-injection Point, transport, concentration gas field recovered water are costly.

From knowledge known in this field：To the east of victory gas field as a example, be currently will to be scattered in each gas gathering station and part well The Sewage Disposal that the gas field recovered water oil truck of field transports to outside 110 kilometers focuses on, the averge distance carried of 1 ton of recovered water Reach 220 kilometers, up to 132 yuan/ton of average fare.

3) utility in the recovered water of gas field can not be recycled.

From knowledge known in this field：Gas field recovered water, essentially from earth formation deep, containing mineral such as a large amount of salt, has Gas field recovered water also contain useful rare material (as noble metal, non-ferrous metal, rare gas, rare earth metal, iodine etc.) and outward Plus chemical agent (as inhibitor, water discharge agent, corrosion inhibiter etc.).

The method of domestic current process gas field containing methanol recovered water is：First the gas field recovered water containing methanol is put together, Reclaim the most of methanol in recovered water, then again the gas field recovered water reclaiming after most of methanol is unified reinjection into reservoir.But There is following defect in the method：

1) need higher cost when reclaiming the gas field produced-water reinjection stratum after methanol, can produce serious after reinjection into reservoir Environmental pollution hidden danger.

2) reclaim the gas field recovered water after methanol and still contain a small amount of methanol, during reinjection into reservoir, difficulty is bigger, re-injection cost Higher.

From knowledge known in this field：According to domestic state-of-the art, when methanol concentration contained by recovered water is less than 5% The economic worth not reclaimed, that is, reclaim the market value that methanol expense is higher than methanol；Domestic containing methanol concentration below 5% Recovered water typically directly reinjection into reservoir, partly the recovered water more than 5% containing methanol concentration also tend to direct reinjection into reservoir and not Recycling；Methanol concentration contained by recovered water is higher than that when 3%, easily sudden strain of a muscle is quick-fried, needs to solve to dodge quick-fried problem during re-injection.

3) transport, concentrate the recovered water of gas field containing methanol costly.

From knowledge known in this field：Taking DaNiuDi gas field as a example, be currently by be scattered in each gas gathering station containing first Alcohol gas field recovered water oil truck transports and focuses on to Sewage Disposal, 1 ton of 70 kilometers of averge distance carried containing methanol recovered water, 42 yuan/ton of average fare.

4) reclaim the energy consumption, costly of methanol from the recovered water of gas field.

5) utility in the recovered water of gas field can not be recycled.

Chinese patent application file ZL201410520445.2 discloses a kind of " gas field sewage method for innocent treatment " skill Art scheme, can carry out harmless treatment using method of ventilation, heating means to gas field recovered water (or gas field sewage).But this is special There is following defect in profit：

1) technical scheme described in this patent application without reference to, indicate, using desalination method, decrement carried out to gas field recovered water And the technical scheme of harmless treatment；Also without reference to, indicate and arbitrarily combined with method of ventilation, heating means using desalination method Method gas field recovered water is carried out with the technical scheme of decrement and harmless treatment.

2) although technical scheme described in this patent application discloses " first adds alkali in gas field sewage (or gas field recovered water) Property material or hydrophosphate, dihydric phosphate the arbitrarily two or more arbitrary proportions mixing of any one or its mixture, make Its with gas field sewage in calcium, magnesium, the incrustation ion such as ferrum form water-fast precipitate；Then again that precipitate is dirty from gas field Separate in water, formed and purify gas field sewage " technical scheme, but do not indicate alkaline matter or hydrophosphate, di(2-ethylhexyl)phosphate The concrete Adding Way of hydrogen salt.

3) although technical scheme described in this patent application discloses, " described enhanced natural ventilating method refers to directly or indirectly With the method for ventilation of Prosthesis's enhanced natural ventilating evaporation effect, such as with the method for spray or spraying, gas field sewage is sprayed to sky In or allow gas field sewage to trickle in atmosphere or allow the natural ventilating method that gas field sewage drips in atmosphere, such as utilize air Highly, above gas field sewage or side construction air channel, chimney or other types building are to form nature for temperature, density relationship The natural ventilating method of convulsion phenomenon, such as increases the gravity-flow ventilation side of air and gas field sewage contact area using capillarity Method, etc.." but do not indicate and specifically utilize capillarity to increase the gravity-flow ventilation side of air and gas field sewage contact area Method, does not indicate how specifically to utilize filler-reinforced gravity-flow ventilation evaporation effect yet.

4) described in this patent application, the technical scheme of ventilation evaporation sewage is used for cold season, high Humid Area, high yield well When, generally require larger water holding facilities, limit its evaporation process ability.

To the east of victory gas field as a example, -31 DEG C of its winter minimum ambient temperature, the most of the time of mid-December～early Febuary Mean temperature is less than -20 DEG C, and the ventilation evaporation capacity in therefore its winter is extremely low；The recovered water of some gas wells, up to 80 ton per days, has The recovered water of gas gathering station up to 100 ton per days more than；If using heating evaporation, the energy consumption of needs is extremely huge.For this reason, it may be necessary to first Recovered water is stored, evaporation of divulging information again after equitemperature rising.

In a word, all there are numerous defects in above-mentioned existing gas field method for treating water cut out and public technology scheme.

Content of the invention

" natural gas " in the present invention：May refer to the natural gas producing from gas field it is also possible to refer to from coal seam In the natural gas (abbreviation coal bed gas or coal-formed gas) that produces it is also possible to refer to the natural gas (letter producing from shale, mud stone Claim shale gas or mud stone gas) it is also possible to refer to the natural gas producing from gas hydrates (being commonly called as combustible ice) mineral reserve, May refer to " associated natural gas ".

" gas field " in the present invention：It is the abbreviation of gas field, refer to have the natural gas well or natural gas can be produced Block or region.

" associated natural gas " in the present invention：Refer to the natural gas with crude oil association, referred to as " associated gas "；May refer to oil The natural gas of field gas well liquid loading is it is also possible to refer to the natural gas separated from crude oil.

" gas hydrates " in the present invention：Abbreviation hydrate.

" gas gathering station " in the present invention：Also known as gas collection measuring station or measuring station, it is commonly called as small station；Refer to collect more than 2 mouthfuls gas Earth station (or field) point of well institute producing natural gas；The basic function of " gas gathering station " is metering individual well gas production or wall scroll " collection Gas pipeline " gas discharge；Most of " gas gathering station " also has and isolates the basic function of " gas gathering line " interior liquid and (be commonly called as point Liquid)；" gas gathering station " having also has heating (improving natural gas temperature), reducing pressure by regulating flow (is reduced natural by throttle style Atmospheric pressure), dehydration (i.e. moisture in removing natural gas), dewfall point (reduce gas dew point, be commonly called as drying) function；Have " gas gathering station " also has supercharging (increasing gas pressure) function.

" gas gathering line " in the present invention：Also known as lease line, refer to the natural gas between " gas gathering station " for the gas well Pipeline；" gas gathering line " having only conveys the natural gas of 1 implication well, and " gas gathering line " that have collects and convey more than 2 mouthfuls gas wells Natural gas.

" pipeline between standing " in the present invention：Also known as gas gathering station or measuring station external transport pipeline, refer to " gas gathering station " to natural gas Natural gas line between purifying plant.

" natural gas purification processing factory " in the present invention：Also known as natural gas purification processing station (or field), abbreviation purification plant, custom Claim treatment plant, central treating station or major station；Refer to collect the natural gas of more than 2 " gas gathering stations " and it is carried out concentrate purify, Earth station (or field) point that dehydration, dewfall point are processed；" natural gas purification processing factory " is generally responsible for 1 gas field or 1 gas field area The focusing on of block natural gas；" the natural gas purification processing factory " having also will carry out deacidification gas (as taken off to the natural gas being collected Removing carbon dioxide, hydrogen sulfide), desulfurization (as removing hydrogen sulfide), supercharging etc. process；" the natural gas purification processing factory " that have also will collect Middle process from " gas gathering station " with vehicle transport or pipelined Lai production recovered water.

" gas field recovered water " in the present invention：Abbreviation recovered water；It is commonly called as gas field sewage or sewage；Also known as Gas Exploitation water outlet (or natural gas sewage), produce recovered water (or production waste), gas-field wastewater (or gas well sewage), gas gathering station recovered water (or Gas gathering station sewage), natural gas line recovered water (or natural gas line sewage), " natural gas runner " recovered water (or " natural gas flow Road " sewage) etc.；Refer to recovered water or the sewage producing in natural gas extraction or production process of natural gas, be mainly derived from underground Stratum (abbreviation gas-bearing formation) containing natural gas, have containing part gas-bearing formation secondary water, manually add water, sanitary sewage and cooling water etc. Other water.The extraction that " gas field recovered water " may refer to any one production link in gas field, production equipment, production technology produce Water (or sewage) is it is also possible to refer to that each production link in gas field, production equipment, production technology produced recovered water arbitrary proportion converge The mixture of collection (or mixing)." gas field recovered water " may refer to from " gas gathering station " (or " gas gathering line ") or " natural gas The aqueous water (or oil water mixture) that purifying plant " is isolated is it is also possible to refer to set from gas well, natural gas line, natural gas Any one aqueous water (or oil water mixture) that back-up separates out or the mixture that its arbitrary proportion mixes." gas field produces Water " may also mean that the aqueous water (or oil water mixture) isolated from any one " natural gas runner " or from any two kinds with The mixture that aqueous water (or oil water mixture) arbitrary proportion that upper " natural gas runner " is isolated mixes." gas field produces The general salinity of water " is higher, containing a large amount of mineral ions (as sodium ion, chloride ion, calcium ion, magnesium ion, bicarbonate radical Deng)；" the gas field recovered water " having is containing additional chemical agent in one or more external or production process of natural gas (such as Natural gas " inhibitor " additional in producing, " suppression ice agent ", " water discharge agent ", " corrosion inhibiter ", " antisludging agent ", " sand washing agent ", " kill-job Liquid " etc.)；" the gas field recovered water " that have contains " liquid hydrocarbon " or/and " emulsifying hydrocarbon "；" the gas field recovered water " that have contains gas water Compound or/and ice；" the gas field recovered water " having contains methanol (or other alcohols materials), and " the gas field recovered water " having does not contain methanol (or other alcohols materials)；" the gas field recovered water " having contains " suppression ice agent ", and " the gas field recovered water " having does not contain " suppression ice agent "；Have " gas field recovered water " contain " suppression ice agent " and methanol (or other alcohols materials) simultaneously；" the gas field recovered water " having does not contain " suppression Ice agent " does not contain methanol (or other alcohols materials) yet.Sum it up, the comparison of ingredients in " gas field recovered water " is complicated.

From knowledge known in this field：The natural gas produced from gas well exploitation typically contains aqueous water or gaseous state Water, some natural gass contain ice crystal or gas hydrates crystal, and some natural gass are also containing the hydrocarbon being in a liquid state under normal temperature and pressure； The water separated from natural gas is typically in a liquid state, normally referred to as recovered water, also known as production recovered water or gas field recovered water.

Liquid hydrocarbon in the present invention：Be commonly called as light oil, can be colourless or yellow or brown, black etc. its His color；May also mean that light crude oil.

From knowledge known in this field：The light oil that east victory gas field part gas well is produced is in dirty-green or black, is similar to Light crude oil.

Emulsifying hydrocarbon in the present invention：It is commonly called as oil emulsion, refer to the liquid hydrocarbon in emulsified state.

" gas field recovered water " in the present invention, it is also possible to refer to " Oil/gas Well recovered water ", described " Oil/gas Well recovered water " is Refer to the subsoil water essentially from oil reservoir or oil-gas Layer that oil gas well mining production is oil recovery gas production when institute output；Described Oil/gas Well can Also to produce the oil well of natural gas or associated gas while referring to and produce crude oil it is also possible to also give birth to while referring to and produce natural gas Produce the natural gas well of light crude oil or condensate.

From knowledge known in this field：Crude oil in many stratum is dissolved with natural gas, some oil reservoirs often with gas-bearing formation Symbiosis or association (gas-bearing formation is commonly referred to as pneumatic jack when oil reservoir top)；During oil well production, the natural gas being dissolved in crude oil can be analysed Out form associated gas, during some oil well production, often exploit oil reservoir and gas-bearing formation simultaneously；The day producing natural gas of domestic many oil wells Amount is up to 1000 mark sides/day.

From knowledge known in this field：When domestic many natural gas wells produce, also produce substantial oil or lightweight simultaneously Oil, some natural gas well daily output crude oil amounts are more than 1 ton per day；Domestic have multiple Condensate Fields, daily output lightweight during gas well liquid loading Oil or crude oil amount up to 1 ton per day more than.

" natural gas runner " in the present invention：Refer to the passage of natural gas flow warp, may refer to natural gas line it is also possible to Refer to the natural gas flows such as the natural gas well, pit shaft, well head, valve, effusion meter, restricting element, pipe fitting, separator, pipeline through passage Any one or any two or more.

" natural gas fluid " in the present invention：Also known as natural gas flow, abbreviation air-flow；" natural gas fluid " may refer to single Gaseous fluid is it is also possible to refer to vapor-liquid two phases mixture fluid it is also possible to refer to gas-liquid-solid multiphase mixture fluid；" natural Air-flow body " can contain moisture.

" gas production auxiliary agent " in the present invention：Refer to " the functional chemical for natural gas extraction or production process of natural gas Agent "；May refer to " inhibitor ", " suppression ice agent ", " corrosion inhibiter ", " water discharge agent ", " antisludging agent ", " sand washing agent ", in " well killing fluid " Any one or among them arbitrarily two or more arbitrary proportions mixture.

" functional chemical agent " in the present invention：Refer to that add in natural gas extraction or production process of natural gas has " inhibitor ", " suppression ice agent ", " corrosion inhibiter ", " water discharge agent " in the general designation of all kinds of chemical agents of specific function, the such as present invention, " antisludging agent ", " sand washing agent " etc., all can be collectively referred to as " functional chemical agent ".

" hydrate inhibitor for natural gas " in the present invention：Referred to as " inhibitor "；It is to refer to suppress gas hydrates (or ice) generates, grows up, " the functional chemical agent " of coalescence or chemical agent.Can be in a liquid state under " inhibitor " normal temperature and pressure, Can be in solid-state it is also possible to be in solid-liquid mixtures state.

" suppression ice agent " in the present invention：Also known as antifreezing agent, prevention and control agent, de-plugging agent, defrosting agent, anti-blocking agent, hydrate preventing and treating Auxiliary agent, belongs to the one kind of " hydrate inhibitor for natural gas ".

" corrosion inhibiter " in the present invention：Refer to " the feature for slowing down gas well, natural gas line, equipment corrosion speed Chemical agent " or chemical agent, can be in a liquid state under " corrosion inhibiter " normal temperature and pressure it is also possible to be in solid-state or solid-liquid mixtures.

" water discharge agent " in the present invention：Also known as foaming water discharge agent, foam discharging agent, foaming agent, azeotropic agent, it is to refer in gas well Interior " functional chemical agent " or the chemical agent producing a large amount of foams；Can be in a liquid state it is also possible to be under " water discharge agent " normal temperature and pressure Solid-state or solid-liquid mixtures.

" antisludging agent " in the present invention：Also known as corrosion inhibiting and descaling agent, anti-incrustation corrosion inhibitor, scale remover, refer to for slow down gas well, Natural gas line, " the functional chemical agent " of equipment scaling speed or chemical agent, can be in a liquid state under " antisludging agent " normal temperature and pressure, Can also be in solid-state or solid-liquid mixtures.

" sand washing agent " in the present invention：Also known as foaming agent, take husky agent, refer to (also known as sand washing water, take for preparing sand cleaning fluid Husky liquid) " functional chemical agent " or chemical agent；The major function of " sand washing agent " and " sand cleaning fluid ", basic function are can be in gas Produce a large amount of foams in well, can assist in and the silt in pit shaft is carried outlet well.

" water-soluble polymer " in the present invention：Abbreviation polymer, belongs to the one kind of " hydrate inhibitor for natural gas ".

" hyperfiltration " in the present invention：Also known as ultra-filtration method or semi-transparent embrane method, refer to：Apply in the raw water side of semipermeable membrane Plus the ambient pressure higher than solution osmotic pressure, when raw water passes through semipermeable membrane, only allow water to pass through, other materials can not pass through and quilt It is trapped in the process on film surface.

" electroosmose process " in the present invention：The method referring generally to carry out desalinization using ion exchange membrane；It is using electricity Ion is attracted at electrode, causes the ion concentration of electrode middle part greatly to decline by the effect of field by force, thus being obtained light The process of water.

" solar energy method " in the present invention：It is also called solar still.

" non-pressurised infiltration absorption method " in the present invention：Also known as " downward penetration ".

" spray evaporation method " in the present invention：Refer to spray in hot-air the water of saliferous with vaporific, so that water droplet is steamed rapidly Send out, the detached process of impurity such as water and salinity.

" flash distillation " in the present invention：Refer to the water of uniform temperature after pressure reduces suddenly, the showing of part water flash As.

" dew point evaporation desalination " in the present invention：Refer to air as carrier, by being humidified to it with sea water or bitter With the process that fresh water is obtained of drying.

" Membrane Materials desalination process " in the present invention：Refer to separate desalination using the realization that combines of membrane technology and still-process The method of journey.

" gravity filter device " in the present invention：Also known as gravity filter, gravity filtration tank, refer to uncovered or open to atmosphere Natural filtration device, also refers to the defecator relying on liquid self gravitation to pass through filter layer or filtrate；Also refer to rely on liquid itself Gravity passes through the filter process of filter layer or filtrate.

The invention solves the problems that first technical problem be that a kind of gas field recovered water decrement treatment method is provided.The method gram Take the deficiency of existing gas field method for treating water cut out, can effectively reduce the volume amount of gas field recovered water, can significantly drop The freight volume of low gas field recovered water and cost of transportation, process energy consumption and expense；There is enforcement easily, safe and reliable, it is widely used, Promote the excellent feature such as easy；Economic benefit, environmental benefit are notable.

The invention solves the problems that second technical problem be that a kind of gas field recovered water method for innocent treatment is provided.The method Overcome the deficiency of existing gas field method for treating water cut out, can effectively solve the problem that gas field recovered water innocuity treatment problem, can Effectively solving gas field recovered water environmental pollution problem, being capable of gas production auxiliary agent in the recovered water of effective recycling gas field and useful thing Matter, can be greatly reduced the harmless treatment cost of gas field recovered water, can be greatly reduced and recycle from the recovered water of gas field The cost of gas production auxiliary agent and utility, energy consumption contained by it, can be greatly reduced the freight volume of gas field recovered water and cost of transportation, Process energy consumption and expense；There is enforcement easily, safe and reliable, it is widely used, promote the excellent feature such as easy；Economic benefit, environmental protection Remarkable benefit.

For solving above-mentioned first technical problem, the present invention adopts following technical proposals：

A kind of gas field of present invention recovered water decrement treatment method, is made up of following steps：With desalination method by moisture from gas Separate in the recovered water of field, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water, reduce gas field recovered water Freight charges and processing cost.

Preferably, described desalination method should be able to effectively reduce the volume of gas field recovered water, should be able to effectively reduce gas field extraction The re-injection difficulty of water or/and the difficulty that effectively reduction gas field recovered water processes further or comprehensively utilizes；Common as this area Technical staff, can determine the concrete scheme of described desalination method, installations and facilities, technological process, energy by art methods Enough determine from the recovered water of gas field separated go out the ratio of moisture or percentage ratio, physical aspect, the water yield, flow, can determine Isolate from the recovered water of gas field how many ratios or percentage ratio moisture, can determine the water isolated from the recovered water of gas field Point concrete composition, index, various solutes content.

Preferably, the concentration of the water-soluble substanceses contained by moisture separated the described recovered water from gas field should be able to meet Plant normal growth requires, or/and meets the discharge standard of state's laws rules and regulations, or/and can as in water, landscape use Water, water for industrial use, boiler feed water, water for building, slurry, domestic water, any one use of farming, forestry, husbandary and fishing water；Make For those of ordinary skill in the art, by art methods can determine separated go out moisture whether meet constitutional law law Can the discharge standard of rule regulation, be used as landscape water, water for industrial use etc..

Further, described desalination method refers to separate water low for solutes content from the high water of solutes content Method or/and process are it is also possible to refer to water low to salt or/and content of mineral substances from the high water of salt or/and content of mineral substances The method separated or/and process.

From knowledge：Desalination method both domestic and external and/or method for desalting seawater have more than 20 kinds at present

Preferably, described desalination method refers to method for desalting seawater.

It is furthermore preferred that described method for desalting seawater is the method producing fresh water using seawater desalination, refer to take from sea water again Obtain process or the method for fresh water.

Preferably, described desalination method refers to that freezing method, freezing process are as light in natural icing desalination process and artificial cooling icing Change method, efficient embrane method such as polymeric membrane for separation method and biomembrance process, electroosmose process such as ion-exchange membrane electrodialysis method and electric submersible bridge Embrane method, the way of distillation are as pressed steam distillation method, for example non-pressurised adsorption and permeation method of downward penetration, semi-transparent embrane method, hyperfiltration, ultrafiltration As ultrafiltrationmembrane process and Nanofiltering membrane, microfiltration method such as microfiltration embrane method, ion exchange such as ammonium carbonate ion exchange, ion exchange resin are handed over Change method such as cation exchange resin and hydrion exchange resin method, cryogenic distillation process such as low-temperature multiple-effect distillation, solar energy method As the such as jet flow negative pressure suction evaporation of solar still method, flash method such as multistage flash vaporization, Membrane Materials desalination process, Municipal Solid Waste Landfillies Method, adsorption desalination method such as electro-adsorption desalination process, dew point evaporation, spray evaporation method, vacuum-freezing process, water-electricity cogeneration method, hotting mask Any one or two or more arbitrarily united method of co-production method.

It is furthermore preferred that described desalination method refers to freezing method, freezing process, efficient embrane method, electroosmose process, the way of distillation, forward direction Osmosis, semi-transparent embrane method, hyperfiltration, ultrafiltration, microfiltration method, ion exchange, ion-exchange resin, cryogenic distillation process, Solar energy method, flash method, Membrane Materials desalination process, Municipal Solid Waste Landfillies, adsorption desalination method, dew point evaporation, spray evaporation method, vacuum Freezing method, water-electricity cogeneration method, any one any series connection of hotting mask co-production method or/and the method for parallel connection.

It is furthermore preferred that described desalination method refer to using nuclear energy, solar energy, wind energy, tide energy any one or two kinds The method that the united method of any of the above is desalinating process, device or facility provide power or/and pressure.

Further, described gas field recovered water can contain methanol and do not contain inhibitor it is also possible to containing inhibitor and not Containing methanol it is also possible to contain methanol and inhibitor it is also possible to without methanol and not contain inhibitor simultaneously.

Further, described gas field recovered water refer in natural gas extraction or production process of natural gas produce recovered water, Coal bed gas or/and coal-formed gas are exploited in the recovered water producing in production process, shale gas or/and mud stone gas exploitation production process and are produced The recovered water of generation, gas hydrates ore deposit Development and Production in the recovered water of life, oil field gas well or associated natural gas production process During produce recovered water, gas condensate field exploitation or production process in produce recovered water any one.

Preferably, described gas hydrates ore deposit refers to that the initial condition of contained natural gas or/and hydrocarbon is natural gas Hydrate.

Preferably, described gas condensate field refers to light oil (or liquid hydrocarbon) yield of the natural gas well more than 0.2m³The gas of/day Field.

Further, described gas field recovered water refers at recovered water, natural gas purification that gas gathering station or/and measuring station produce The extraction that recovered water, natural gas surface production or the accumulating website (as booster station, pressure-reducing station, gas distribution station etc.) that reason factory produces produces The mixture of any one or any two or more arbitrary proportions in water.

Further, described gas field recovered water refers to any one production in natural gas extraction or production process of natural gas The recovered water that link, production equipment, production technology produce.

Further, described gas field recovered water refers to any two in natural gas extraction or production process of natural gas or two Individual above production link, production equipment, the mixture of production technology produced recovered water arbitrary proportion.

Further, that described gas field recovered water refers to separate from natural gas runner or that natural gas runner produces Recovered water.

Preferably, described natural gas runner refers to the natural gas well, pit shaft, well head, valve, effusion meter, restricting element, pipe The natural gas flows such as part, separator, pipeline are any one or any two or more through passage.

Further, described gas field recovered water refer to by the liquid hydrocarbon isolated in natural gas runner or/and emulsifying hydrocarbon with The aqueous water being formed or recovered water is separated further in the mixture of water.

Further, described gas field recovered water refers to be further separated out in the emulsifying hydrocarbon isolated from natural gas runner Aqueous water or recovered water.

Further, described gas field recovered water contains liquid hydrocarbon or/and emulsifying hydrocarbon.

Preferably, said liquid hydrocarbon can be other colors such as colourless or yellow or brown, black, May refer to light crude oil.

Further, described gas field recovered water also refers to the underground essentially from oil reservoir or oil-gas Layer of Oil/gas Well institute output Water；Described Oil/gas Well may refer to also produce the oil well of natural gas (or associated gas) while producing crude oil it is also possible to refer to give birth to Also the natural gas well of light crude oil or condensate is produced while producing natural gas.

Further, described gas field recovered water may refer to vaporous water it is also possible to refer to aqueous water or solid water.

Further, the moisture separated the described recovered water from gas field can be aqueous water, solid water or ice, gaseous state The mixture of any one or any two or more arbitrary proportions of water or water vapour.

Further, for reduces cost, in gas gathering station or near gas gathering station, near in well site or well site, purification plant Any one place near interior or purification plant or any more than 2 places, with desalination method by moisture from the recovered water of gas field Separate, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

Preferably, for reduces cost, elder generation is in gas gathering station or near gas gathering station, near in well site or well site, purification plant Any one place near interior or purification plant or any more than 2 places, with desalination method by moisture from the recovered water of gas field Separate, formed and concentrate gas field recovered water；Then another one or multiple place or station are delivered to by concentrating gas field recovered water again Point.

It is highly preferred that for reduces cost, first in gas gathering station or gas gathering station near, in well site or near well site, only Change any one place in factory or near purification plant or any more than 2 places, with desalination method, moisture is produced from gas field Separate in water, formed and concentrate gas field recovered water；Then another one or multiple place are delivered to by concentrating gas field recovered water again Or website；Then with desalination method, moisture is separated from the recovered water of concentration gas field again, to reduce gas field extraction further Water volume.

Further, in order to solve the pollution problem of desalting plant, extend its service life, desalinate dress with sour routine cleaning Put.

Preferably, described acid be mineral acid, organic acid any one or there are not the arbitrarily two or more of chemical reaction The mixture of arbitrary proportion.

It is furthermore preferred that described acid be hydrochloric acid, formic acid, acetic acid any one or do not occur any two kinds of chemical reaction with The mixture of upper arbitrary proportion.

It is furthermore preferred that with after sour routine cleaning desalting plant more any one or any two or more with alkaline matter Pickling residual liquid is neutralized to pH value 7～9 by the mixture of arbitrary proportion, then mixes it with recovered water.

It is furthermore preferred that with after sour routine cleaning desalting plant, then pickling residual liquid is mixed with recovered water.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, with sour routine cleaning desalting plant.

Further, in order to solve the pollution problem of desalting plant, extend its service life, first add in the recovered water of gas field Enter acid to adjust extraction water ph value to less than 5, then with desalination method, moisture is separated from the recovered water of gas field again.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, first add acid to adjust extraction water ph value to less than 5 in recovered water, Then with desalination method, moisture is separated from the recovered water of gas field again.

From knowledge known in this field：, in order to improve its salt rejection rate, typically first water ph value is adjusted taking reverse osmosis membrane as a example Whole to 7.5～8.5 so as to be in alkalescence, then desalinated with reverse osmosis membrane again.

Further, in order to solve the pollution problem of desalting plant, extend its service life, first use gravity filter device mistake Then moisture separated from the recovered water of gas field by impurity in the recovered water of air filtration field again with desalination method.

Preferably, described gravity filter device refers to uncovered or open to atmosphere natural filtration device, also refers to rely on liquid certainly Heavy sensation of the body power passes through the defecator of filter layer filtrate.

Preferably, the filter layer of described gravity filter device by plant granule such as walnut shell, Plant fiber such as cotton and fiber crops, Chemical fibre, staple fibre, chemical fibre such as chemical fibre blanket and chemical fabric, animal fiber such as silkworm silk and wool felt, mineral grain, mineral Fiber such as glass wool cloth, plant sintered particles such as activated carbon, carbon fibre such as carbonization branch any one or any two kinds with The mixture of upper arbitrary proportion is constituted.

It is furthermore preferred that described mineral grain refer to sand, sand, anthracite or coal particle, haydite, floating bead, brick and tile granule in small, broken bits, Perlite, kieselguhr, Muscovitum, finely crushed glass granule, concrete particle in small, broken bits, gypsum particle, rock particles in small, broken bits, soil sintering The mixture of any one or any two or more arbitrary proportions of granule.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, first filter the impurity in the recovered water of gas field with gravity filter device, then With desalination method, moisture is separated from the recovered water of gas field again.

Further, in order to solve the pollution problem of desalting plant, extend its service life, first gas field recovered water stood, Make the contamination precipitation in recovered water, form clean recovered water；Then with desalination method, moisture is separated from clean recovered water again Out.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Gas field recovered water is first stood, makes the contamination precipitation in recovered water, shape by any one near place or any more than 2 places Become clean recovered water；Then with desalination method, moisture is separated from clean recovered water again.

Preferably, with existing method, the impurity of precipitation is separated or process further.

It is furthermore preferred that described existing method refer to solid- liquid separation, cyclonic separation, centrifugation, filtration, pressurized tank filter, Gravity filter device filtration, pressure filter filter pressing, add inorganic flocculating agent, add any of high polymer coagulant or/and flocculation aid A kind of or arbitrarily two or more arbitrarily united methods.

Further, in order to there is light oil when preventing from being separated moisture from the recovered water of gas field with desalination method And/or emulsifying hydrocarbon flash burn, and solve the pollution problem of desalting plant, first by light oil and/or emulsifying hydrocarbon from the recovered water of gas field Separate；Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field recovered water.

Preferably, first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field, then emulsifying hydrocarbon is divided further From for light oil and water；Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field extraction Water.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Light oil and/or emulsifying hydrocarbon are first isolated from the recovered water of gas field by any one near place or any more than 2 places Come；Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field recovered water.

Preferably, first with heating, breakdown of emulsion, standing, air supporting, catalysis oxidation, biological oxidation, any one or two kinds that ionize The method of any of the above combination makes light oil and/or emulsifying hydrocarbon separate from the recovered water of gas field；Then use desalination method again Moisture is separated from the recovered water of gas field, is formed and concentrate gas field recovered water.

It is highly preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first with heating, breakdown of emulsion, standing, air supporting, catalysis oxidation, biological oxygen The method of change, any one ionizing or two or more combination in any makes light oil and/or emulsifying hydrocarbon divide from the recovered water of gas field Separate out；Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field recovered water.

Described heating means include environment heating means, fuel heating means such as coal-fired container heating and steam heating and Any one in fuel oil stove heat etc., electrical heating method, waste-heat method, waste heat method, solar energy heating method Being used in combination of heating means or arbitrarily two or more heating means.

Described environment heating means refer to the method heating gas field recovered water using natural environment temperature, such as will be equipped with gas The hermetic container of field recovered water is placed in atmospheric environment, with sunlight illuminating method, natural ventilating method, forced ventilation method, wind Blow the hermetic container equipped with gas field recovered water for the heating such as Exposure to Sunlight method.

Described solar energy heating method refers to the method directly or indirectly utilizing solar energy or sunlight heats, such as profit The method heating gas field recovered water with solar water heater.

Described breaking method includes chemical demulsifying process such as demulsifier breakdown of emulsion, physics breaking method such as electric dehydration breakdown of emulsion method With ultrasonic dehydration method and electric discharge breakdown of emulsion method, filtration breakdown of emulsion method, any one heating means of coalescence breakdown of emulsion method or any two kinds Being used in combination of above heating means.

From knowledge known in this field：Light oil and/or emulsifying hydrocarbon are water insoluble, and density is below water；Oarse-grained Emulsifying hydrocarbon is normally at formation transition zone between profit, can suspend in water in the short grained emulsifying hydrocarbon short time, but for a long time Can be floating to the water surface after static.

From knowledge known in this field, lightweight oil emulsion can be by adsorbing breakdown of emulsion (as haydite, gravel, walnut shell Absorption breakdown of emulsion) it is also possible to using coalescence material such as tacryl ball breakdown of emulsion it is also possible to utilize catalysis oxidation, biological oxidation, ionization Breakdown of emulsion is it is also possible to utilize standing, air supporting breakdown of emulsion.

Further, in order to there is light oil when preventing from being separated moisture from the recovered water of gas field with desalination method And/or emulsifying hydrocarbon flash burn, and solve the pollution problem of desalting plant, first with energising oxidation such as electrolytic oxidation, catalysis oxidation, biology The method of any one or the two or more combination in any of oxidation, ultrasonic oxidation, Corona Oxidation such as discharge oxidation, ionization etc. is by breast Change hydrocarbon or/and light oil oxidation Decomposition, then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate Gas field recovered water.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, with energising oxidation such as electrolytic oxidation, catalysis oxidation, biological oxidation, ultrasonic Oxidation, the method for any one or the two or more combination in any of Corona Oxidation such as discharge oxidation, ionization etc. by emulsifying hydrocarbon or/and Light oil oxidation Decomposition.

Further, in order to remove incrustation ion, emulsifying hydrocarbon or/and dissolved hydrocarbon, the sulfur such as the Ca, Mg and Fe in the recovered water of gas field The change sour gas such as hydrogen and carbon dioxide, and solve the pollution problem of desalting plant, in the recovered water of gas field, first add basic species Matter or hydrophosphate, any one or its arbitrarily two or more arbitrary proportions mixing of dihydric phosphate mixture so as to Gas field recovered water reacts into suspension or troubled liquor；Then with existing method, suspension or troubled liquor are separated into solid content With clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, is formed and concentrate gas field recovered water, To reduce the volume of gas field recovered water.

Preferably, described dissolved hydrocarbon refers to light oil or the hydrocarbon being dissolved in the recovered water of gas field.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or The mixture of its arbitrarily two or more arbitrary proportion mixing is so as to react into suspension or troubled liquor with gas field recovered water；So With existing method, clean recovered water is separated from suspension or troubled liquor afterwards；Then again with desalination method by moisture from Separate in clean recovered water, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Water-fast solid content；With existing method, solid content is separated from recovered water again, form clean recovered water；Then again With desalination method, moisture is separated from clean recovered water, formed and concentrate gas field recovered water, to reduce gas field recovered water Volume.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, first add alkaline matter or hydrophosphate, phosphoric acid in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric salt so as to gas field recovered water react into outstanding Turbid liquid or troubled liquor；Then with existing method, suspension or troubled liquor are separated into solid content and clean recovered water；Then With desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water, to reduce gas field recovered water Volume.

It is furthermore preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first add alkaline matter or hydrophosphate, phosphorus in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of acid dihydride salt is so as to react into gas field recovered water Suspension or troubled liquor；Then with existing method, clean recovered water is separated from suspension or troubled liquor；Then With desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water, to reduce gas field recovered water Volume.

It is furthermore preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first add alkaline matter or hydrophosphate, phosphorus in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of acid dihydride salt so as to gas field recovered water in The incrustation ions such as calcium, magnesium, ferrum form water-fast solid content；With existing method, solid content is isolated from recovered water again Come, form clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, form concentration gas field and adopt Water outlet, to reduce the volume of gas field recovered water.

It is furthermore preferred that by further for the solid content isolated harmless treatment or high-temperature roasting.

Preferably, first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；Add in the recovered water of gas field again Enter the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method, suspension or troubled liquor are divided From one-tenth solid content and clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate Gas field recovered water, to reduce the volume of gas field recovered water.

It is furthermore preferred that first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；Again in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method by clean recovered water from suspension Or separate in troubled liquor；Then with desalination method, moisture is separated from clean recovered water again, form concentrated gas Field recovered water, to reduce the volume of gas field recovered water.

It is furthermore preferred that first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；Again in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form water-fast solid content；Again will with existing method Solid content is separated from recovered water, forms clean recovered water；Then again with desalination method by moisture from clean recovered water Separate, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

It is furthermore preferred that first gas field recovered water and light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then will be light Matter oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field.

It is furthermore preferred that described existing method refers to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, rotation Flow separation, any one or any two or more arbitrarily united method of centrifugation.

It is furthermore preferred that described existing method refers to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, rotation Flow separation, any one series connection of centrifugation or/and the method for parallel connection.

It is furthermore preferred that described standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation Separate the standing referring in open-top receptacle, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation point From.

It is furthermore preferred that described gravity filter device refers to uncovered or open to atmosphere natural filtration device, also refer to rely on liquid Self gravitation passes through the defecator of filter layer or filtrate.

It is furthermore preferred that described gravity filter device includes uncovered container casing and is arranged on the mistake of bottom in container casing Filtering layer；Described container casing bottom or bottom are provided with outlet.

It is furthermore preferred that described existing method refers to filtration, pressure-filtering tank filtration, pressure filter filter pressing, adds inorganic flocculating agent, adds Enter any one or any two or more arbitrarily united method of macromolecule organic flocculating agent or/and flocculation aid.

It is furthermore preferred that described existing method refers to filtration, pressure-filtering tank filtration, pressure filter filter pressing, adds inorganic flocculating agent, height The method of any one of molecule organic flocculant or/and flocculation aid arbitrarily series connection or/and parallel connection.

It is furthermore preferred that described existing method refers to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, rotation Flow separation, centrifugation, filtration, pressure-filtering tank filtration, pressure filter filter pressing, addition inorganic flocculating agent, addition macromolecule organic-flocculation Agent or/and any one or any two or more arbitrarily united method of flocculation aid.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Suspension or troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to container Bottom, forms clean recovered water in upper vessel portion；Then with desalination method, moisture is separated from clean recovered water again, Upper vessel portion forms and concentrates gas field recovered water；Then by concentrate gas field recovered water from separate in container innoxious further from Reason；Then again by further for the solid content in container harmless treatment or high-temperature roasting.

It is furthermore preferred that first separating the solid content in container, by further for solid content harmless treatment or high temperature roasting Burn；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water.

It is furthermore preferred that first separating the solid content in container, by further for solid content harmless treatment or high temperature roasting Burn；Then separate further harmless treatment in container by concentrating gas field recovered water again.

It is furthermore preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first add alkaline matter or hydrophosphate, phosphorus in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of acid dihydride salt so as to gas field recovered water in The incrustation ions such as calcium, magnesium, ferrum form suspension or troubled liquor；Then suspension or troubled liquor are placed in container；Then Standing, makes solid content be settled down to lower vessel portion, forms clean recovered water in upper vessel portion.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Suspension or troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to container Bottom, forms clean recovered water in upper vessel portion；Then clean gas field is produced in water from container and separate；Then again with light Moisture is separated from clean recovered water by change method, is formed and concentrates gas field recovered water；Then again by the solid content in container Harmless treatment or high-temperature roasting further.

It is furthermore preferred that first separating the solid content in container, by further for solid content harmless treatment or high temperature roasting Burn；Then clean gas field is produced in water from container and separate；Then again with desalination method by moisture from clean recovered water Separate, formed and concentrate gas field recovered water.

It is furthermore preferred that first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field.

Preferably, first by any one or its arbitrarily two or more of alkaline matter or hydrophosphate, dihydric phosphate The mixture of meaning ratio mixing adds in container；Then again gas field recovered water is added in container, form suspension or turbid solution Body；Then stand, form clean recovered water in upper vessel portion；Then with desalination method, moisture is separated from clean recovered water again Out, formed in upper vessel portion and concentrate gas field recovered water.

It is furthermore preferred that first by clean recovered water from separating in container；Then again with desalination method by moisture from clean Separate in net recovered water, formed and concentrate gas field recovered water.

It is furthermore preferred that first will be arbitrarily two or more to any one or its of alkaline matter or hydrophosphate, dihydric phosphate The mixture of arbitrary proportion mixing adds in container；Then again gas field recovered water is added in container, form suspension or muddiness Liquid；Then stand, form clean recovered water in upper vessel portion, form solid content in lower vessel portion；Then by clean recovered water Separate in container, by further for the solid content in container harmless treatment or high-temperature roasting；Then use desalination method again Moisture is separated from clean recovered water, is formed and concentrate gas field recovered water.

It is furthermore preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first by alkaline matter or hydrophosphate, dihydric phosphate any one Plant or the mixture of its arbitrarily two or more arbitrary proportions mixing adds in container；Then again gas field recovered water is added container In, form suspension or troubled liquor；Then stand, form clean recovered water in upper vessel portion.

Preferably, first gas field recovered water is added in container；Again by alkaline matter or hydrophosphate, the appointing of dihydric phosphate A kind of or its arbitrarily two or more arbitrary proportions mixing mixture of anticipating add in container, form suspension or troubled liquor；So After stand, form clean recovered water in upper vessel portion；Then with desalination method, moisture is separated from clean recovered water again, Formed in upper vessel portion and concentrate gas field recovered water.

It is furthermore preferred that first gas field recovered water is added in container；Again by alkaline matter or hydrophosphate, dihydric phosphate The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its adds in container, forms suspension or troubled liquor； Then stand, form clean recovered water in upper vessel portion, form solid content in lower vessel portion；Then by clean extraction water from container Inside separate, by further for the solid content in container harmless treatment or high-temperature roasting；Then again with desalination method by moisture Separate from clean recovered water, formed and concentrate gas field recovered water.

It is furthermore preferred that in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant Any one neighbouring place or any more than 2 places, first add gas field recovered water in container；Again by alkaline matter or phosphorus Sour hydrogen salt, the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate add in container, shape Become suspension or troubled liquor；Then stand, form clean recovered water in upper vessel portion.

It is furthermore preferred that sending into mummifying pool or/and gravity filter device filtration, dehydration, air-drying solid content, then enter one again Step harmless treatment.

It is furthermore preferred that allowing solid content rely on gravity filtration in sand filter, it is separated into upper clear supernate and bottom precipitate；So Afterwards upper clear supernate is taken out and mix with recovered water；Then make moulded coal after bottom precipitate being mixed homogeneously with coal dust, soil；So High-temperature roasting after air-drying moulded coal afterwards becomes residue；Then the raw material again residue system is used as building materials, paves the way etc..

It is furthermore preferred that allowing solid content rely on gravity filtration, mummification in uncovered sand basin；Then liquid sand basin being filtered out Mix with gas field recovered water.

It is furthermore preferred that solid content is cleared from the Shamian Island of uncovered sand basin with existing method, or use existing method Regularly replace the sand of uncovered sand basin.

It is furthermore preferred that solid content is mixed homogeneously with fine coal, loess, then make moulded coal and air-dry；Then by air-dried type It is fired into slag in coal addition stove fire, then slag is used as the raw material of building block.

It is furthermore preferred that solid content is mixed homogeneously with fine coal or/and loess, then make building block or brick and tile blank.

It is furthermore preferred that described solid content includes water-fast crystal, amorphous substance, precipitate, floating thing, residue, machine The mixture of any one or its two or more arbitrary proportions mixing of tool impurity, polymer etc..

It is furthermore preferred that filtering solid content, before dehydration and drying or cleaning or further harmless treatment, or will consolidate Before shape thing is mixed with fine coal or/and soil, first with acid, the pH value of solid content is adjusted to 6-9.

From knowledge：PH value belongs to hazardous solid waste when being more than 12.

Preferably, described alkaline matter refers to the water-soluble substanceses that the pH value of water can be made to be more than 8, such as sodium hydroxide, hydroxide Potassium, sodium carbonate, trona, natural aqueous alkali, ammonium hydrogen carbonate etc..

Preferably, described hydrophosphate refer to any one or its any two kinds in hydrophosphate soluble in water with The mixture of upper arbitrary proportion mixing.As dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate etc..

Preferably, described dihydric phosphate refers to any one or its any two in dihydric phosphate soluble in water Plant the mixture of any of the above ratio mixing.As sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate etc..

Further, in order to improve the efficiency of desalting plant, first with acid, the pH value of clean recovered water is adjusted to 7～9, so With desalination method, moisture is separated from clean recovered water more afterwards.

It is furthermore preferred that described acid be mineral acid, organic acid any one or do not occur any two kinds of chemical reaction with The mixture of upper arbitrary proportion.

From knowledge known in this field：, when water ph value is 7.5～8.5, its desalting efficiency is taking reverse osmosis membrane as a example High.

Further, in order to occur methanol to dodge when preventing from being separated moisture from the recovered water of gas field with desalination method Methanol content in the recovered water of gas field is first down to below methanol flash burn concentration by combustion；Then again with desalination method by moisture from gas Separate in the recovered water of field, formed and concentrate gas field recovered water.

From knowledge known in this field：When methanol concentration in sewage is more than 3%, easily flash burn sudden strain of a muscle is quick-fried.

Preferably, first in gas gathering station or near gas gathering station, near in well site or well site, in purification plant or near purification plant Any one place or any more than 2 places, the methanol content in the recovered water of gas field is down to below methanol flash burn concentration； Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field recovered water

Preferably, first with heating means, gas field recovered water is heated；Then steamed with distillation, stripping, stripping, rectification, negative pressure Evaporate, negative pressure stripping, negative pressure stripping, any one or any two or more methods in negative pressure rectification, by the recovered water of gas field Methanol content is down to below methanol flash burn concentration；Then with desalination method, moisture is separated from the recovered water of gas field again, shape Become to concentrate gas field recovered water.

It is highly preferred that first in gas gathering station or near gas gathering station, near in well site or well site, in purification plant or purification plant is attached Closely, with heating means, gas field recovered water is heated；Then with distillation, stripping, stripping, rectification, vacuum distillation, negative pressure stripping, bear Any one or any two or more methods in pressure stripping, negative pressure rectification, the methanol content in the recovered water of gas field is down to first Below alcohol flash burn concentration；Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field extraction Water.

Described heating means include environment heating means, fuel heating means (as coal-fired container heating, steam heating, Fuel oil stove heat etc.), electrical heating method, waste-heat method, waste heat method, any one in solar energy heating method Being used in combination of heating means or arbitrarily two or more heating means.

Described vacuum distillation refers to that pressure when distilling is less than normal pressure or local atmospheric pressure.

Described negative pressure stripping refers to that pressure when stripping is less than normal pressure or local atmospheric pressure.

Described negative pressure stripping refers to that pressure during stripping is less than normal pressure or local atmospheric pressure.

Described negative pressure rectification refers to that pressure during rectification is less than normal pressure or local atmospheric pressure.

Preferably, first with heating means, gas field recovered water is heated；Then steamed with distillation, stripping, stripping, rectification, negative pressure Evaporate, negative pressure stripping, negative pressure stripping, any one or any two or more methods in negative pressure rectification, gas field recovered water is separated Crude carbinol for methanol content more than 20% and methanol content are less than the gas field recovered water of methanol flash burn concentration, by methanol content More than 20% crude carbinol recycles；Then with desalination method, moisture is separated from the recovered water of gas field again.

It is highly preferred that first in gas gathering station or near gas gathering station, near in well site or well site, in purification plant or purification plant is attached Closely, first with heating means, gas field recovered water is heated；Then with distillation, stripping, stripping, rectification, vacuum distillation, negative pressure strip, Any one or any two or more methods in negative pressure stripping, negative pressure rectification, gas field recovered water is separated into methanol content More than 20% crude carbinol and methanol content are less than the gas field recovered water of methanol flash burn concentration, and methanol content more than 20% is thick Methanol Recovery utilizes；Then with desalination method, moisture is less than the gas field recovered water of methanol flash burn concentration from methanol content again and divides Separate out.

Preferably, first with method for oxidation, the methanol in the recovered water of gas field is oxidized to formaldehyde or/and formic acid or/and titanium dioxide Carbon；Then with desalination method, moisture is separated from the recovered water of gas field again.

Described method for oxidation includes electrolytic method, catalysed oxidation processes, discharge oxidation method, ultrasonic oxidation method, life Any one or its any two kinds any integrated processes of thing method for oxidation.

Described electrolytic method refers to the method using current electroanalysis gas field recovered water；Preferably, described electrolytic method is The method referring to the current electroanalysis gas field recovered water using solaode generation.

Described catalysed oxidation processes refer to bio-catalytical oxidation method, quasiconductor such as Titanium Dioxide oxidation side Method, redox system such as ferric iron-ferrous irons system catalysed oxidation processes, peroxide catalyzed oxidizing process such as hydrogen peroxide-height Any one or any two or more being arbitrarily used in combination in potassium manganate system, supercritical catalyst method for oxidation.

It is furthermore preferred that first the methanol content in the recovered water of gas field is down to below methanol flash burn concentration；Then again with electrolysis Method, catalysed oxidation processes, discharge oxidation method, ultrasonic oxidation method, any one or its any two of bio-oxidation process Any integrated processes planted, the methanol in the recovered water of gas field is oxidized to formaldehyde or/and formic acid or/and carbon dioxide；Then again With desalination method, moisture is separated from the recovered water of gas field.

It is highly preferred that being oxidized to the methanol in the recovered water of gas field after formaldehyde or/and formic acid, formaldehyde or/and formic acid are entered One step recycles.

From knowledge known in this field：Gas field recovered water containing methanol is huge with the gas field recovered water difference without methanol Greatly, domestic currently without the successful precedent and the open source literature that concentrate gas field containing methanol recovered water with desalination methods such as reverse osmosiss；Return Receive the extraction coolant-temperature gage after methanol up to more than 100 DEG C, and through strict pretreatment, can directly use Membrane Materials method to concentrate Recovered water, can be greatly reduced the cost concentrating recovered water；Domestic currently without with desalination methods such as hyperfiltration, Membrane Materials methods The successful precedent of recovered water and open source literature after concentration and recovery methanol.

Further, for effectively utilizes freshwater resources, the water that will be separated from the recovered water of gas field with desalination method Divide and comprehensively utilize further.

Preferably, the moisture that will be separated from the recovered water of gas field with desalination method, as middle water, water for industrial use, scape Sight water, water for building, slurry, domestic water, any one or two or more application of farming, forestry, husbandary and fishing water.

The field test in east victory gas field shows：It is less than with the water salinity that reverse osmosis are separated from recovered water 500mg/L, belongs to fresh water；Further detection chemical examination show, separated go out water meet environment protection emission require it is allowed to be used as agricultural Herd fishing water.

For solving above-mentioned second technical problem, the present invention adopts following technical proposals：

A kind of gas field of present invention recovered water method for innocent treatment, is made up of following steps：

1) formed and concentrate gas field sewage：With desalination method, moisture is separated from the recovered water of gas field, form concentrated gas Field recovered water, to reduce the volume of gas field recovered water, reduces freight charges and the processing cost of gas field recovered water.

2) concentrate gas field recovered water innoxious：Gas field recovered water existing method will be concentrated process further or/and comprehensive Using so that it is innoxious to concentrate gas field recovered water.

Further, step 1) in, described desalination method should be able to effectively reduce the volume of gas field recovered water, should be able to effectively drop The re-injection difficulty of low gas field recovered water or/and the difficulty that effectively reduction gas field recovered water processes further or comprehensively utilizes；As Those of ordinary skill in the art, can determine the concrete scheme of described desalination method, installations and facilities, work by art methods Skill flow process, can determine from the recovered water of gas field separated go out the ratio of moisture or percentage ratio, physical aspect, the water yield, flow, Can determine isolate from the recovered water of gas field how many ratios or percentage ratio moisture, can determine from the recovered water of gas field point The concrete composition of the moisture separating out, index, various solutes content.

Further, step 1) in, the water-soluble substanceses contained by moisture separated the described recovered water from gas field dense Degree should be able to meet plant normal growth requirement, or/and meets the discharge standard of state's laws rules and regulations, or/and can make For middle water, landscape water, water for industrial use, boiler feed water, water for building, slurry, domestic water, farming, forestry, husbandary and fishing water appoint Meaning is a kind of to be used；As those of ordinary skill in the art, by art methods can determine separated go out moisture whether Meet the discharge standard of state's laws rules and regulations, landscape water, water for industrial use etc. can be used as.

Further, step 1) in, described desalination method refers to water low for solutes content from the high water of solutes content Method or/and the process separated are it is also possible to refer to contain water low to salt or/and content of mineral substances from salt or/and mineral Measure the method separated in high water or/and process.

Further, step 1) in, described gas field recovered water can contain methanol and not contain inhibitor it is also possible to contain suppression Preparation and do not contain methanol it is also possible to contain methanol and inhibitor it is also possible to without methanol and not contain inhibitor simultaneously.

Further, step 1) in, described gas field recovered water refers to produce in natural gas extraction or production process of natural gas Recovered water, coal bed gas or/and coal-formed gas exploit the recovered water producing in production process, shale gas or/and the exploitation life of mud stone gas The recovered water of generation, gas hydrates in the recovered water, oil field gas well or the associated natural gas production process that produce during product Any one of the recovered water producing in the recovered water, gas condensate field exploitation or the production process that produce during ore deposit Development and Production.

Further, step 1) in, described gas field recovered water refers to the recovered water, sky that gas gathering station or/and measuring station produce Recovered water, natural gas surface production or accumulating website (as booster station, pressure-reducing station, gas distribution station etc.) that so gas purifying plant produces The mixture of any one or any two or more arbitrary proportions in the recovered water producing.

Further, step 1) in, described gas field recovered water refers to appointing in natural gas extraction or production process of natural gas The recovered water that one production link of meaning, production equipment, production technology produce.

Further, step 1) in, described gas field recovered water refers to appointing in natural gas extraction or production process of natural gas Anticipate two or more production links, production equipment, the mixture of production technology produced recovered water arbitrary proportion.

Further, step 1) in, described gas field recovered water refers to separate from natural gas runner or natural gas The recovered water that runner produces.

Further, step 1) in, described gas field recovered water refer to by the liquid hydrocarbon isolated in natural gas runner or/and Emulsifying hydrocarbon and the aqueous water or the recovered water that separate formation in the mixture of water further.

Further, step 1) in, described gas field recovered water refers to enter in the emulsifying hydrocarbon isolated from natural gas runner Aqueous water or recovered water that one step is isolated.

Further, step 1) in, described gas field recovered water contains liquid hydrocarbon or/and emulsifying hydrocarbon.

Further, step 1) in, described gas field recovered water also refer to Oil/gas Well institute output essentially from oil reservoir or oil The subsoil water of gas-bearing formation；Described Oil/gas Well may refer to also produce the oil well of natural gas (or associated gas) while producing crude oil, May refer to while producing natural gas, also produce the natural gas well of light crude oil or condensate.

Further, step 1) in, described gas field recovered water may refer to vaporous water it is also possible to refer to aqueous water or solid-state Water.

Further, step 1) in, the moisture separated the described recovered water from gas field can be aqueous water, solid water Or the mixture of any one or any two or more arbitrary proportions of ice, vaporous water or water vapour.

Further, step 1) in, for reduces cost, in gas gathering station or near gas gathering station, in well site or well site attached Closely, any one place in purification plant or near purification plant or any more than 2 places, with desalination method by moisture from gas field Separate in recovered water, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

Further, step 1) in, in order to solve the pollution problem of desalting plant, extend its service life, use the acid cut phase Cleaning desalting plant.

Further, step 1) in, in order to solve the pollution problem of desalting plant, extend its service life, first to gas field Add acid to adjust extraction water ph value to less than 5 in recovered water, then with desalination method, moisture is divided from the recovered water of gas field again Separate out.

Further, step 1) in, in order to solve the pollution problem of desalting plant, extend its service life, first use gravity Defecator filters the impurity in the recovered water of gas field, is then separated moisture from the recovered water of gas field with desalination method again.

Further, step 1) in, in order to solve the pollution problem of desalting plant, extend its service life, first by gas field Recovered water stands, and makes the contamination precipitation in recovered water, forms clean recovered water；Then with desalination method, moisture is adopted from cleaning again Separate in water outlet.

Further, step 1) in, in order to send out when preventing and being separated moisture from the recovered water of gas field with desalination method Raw light oil and/or emulsifying hydrocarbon flash burn, and solve the pollution problem of desalting plant, first by light oil and/or emulsifying hydrocarbon from gas field Separate in recovered water；Then with desalination method, moisture is separated from the recovered water of gas field again, form concentration gas field and adopt Water outlet.

Further, step 1) in, in order to send out when preventing and being separated moisture from the recovered water of gas field with desalination method Raw light oil and/or emulsifying hydrocarbon flash burn, and solve the pollution problem of desalting plant, first with energising oxidation such as electrolytic oxidation, catalysis Any one or the two or more combination in any of oxidation, biological oxidation, ultrasonic oxidation, Corona Oxidation such as discharge oxidation, ionization etc. Method by emulsifying hydrocarbon or/and light oil oxidation Decomposition, then with desalination method, moisture is isolated from the recovered water of gas field again Come, formed and concentrate gas field recovered water.

Further, step 1) in, in order to remove the incrustation ions such as the Ca, Mg and Fe in the recovered water of gas field, emulsifying hydrocarbon or/and The sour gas such as dissolved hydrocarbon, hydrogen sulfide and carbon dioxide, and solve the pollution problem of desalting plant, first add in the recovered water of gas field Enter the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method, suspension or troubled liquor are divided From one-tenth solid content and clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate Gas field recovered water, to reduce the volume of gas field recovered water.

Further, step 1) in, in order to improve the efficiency of desalting plant, first with acid, the pH value of clean recovered water is adjusted To 7～9, then with desalination method, moisture is separated from clean recovered water again.

Further, step 1) in, in order to send out when preventing and being separated moisture from the recovered water of gas field with desalination method Methanol content in the recovered water of gas field is first down to below methanol flash burn concentration by raw methanol flash burn；Then again will with desalination method Moisture is separated from the recovered water of gas field, is formed and concentrates gas field recovered water.

Further, step 1) in, for effectively utilizes freshwater resources, will be separated from the recovered water of gas field with desalination method Moisture out comprehensively utilizes further.

Further, step 2) in, gas field produced-water reinjection stratum will be concentrated.

Preferably, first will concentrate gas field recovered water art methods and reduce volume further, then again will be further Concentration gas field produced-water reinjection stratum after reduction volume.

From knowledge known in this field：Gas field produced-water reinjection stratum is method commonly used in the art, and gas field recovered water returns During note stratum, salinity, salinity, water-soluble substanceses content are not required it is allowed to gas field produced-water reinjection stratum will be concentrated；Gas The amount on field produced-water reinjection stratum is fewer, and gas production cost is lower.

Further, step 2) in, any one or its with heating evaporation method, ventilation method of evaporating are arbitrarily united The moisture of method evaporation and concentration gas field recovered water, so that it is innoxious to concentrate gas field recovered water.

Described ventilation method of evaporating include natural ventilating method, method of ventilation of exposing to the weather, enhanced natural ventilating method, The appointing of any one method of ventilation in forced ventilation method or any two kinds of method of ventilations or arbitrarily two or more method of ventilation Meaning is used in combination.

Described natural ventilating method refers to allow the method for ventilation through flow surface of air or wind of nature, such as allows air from water Face is passed through or allows wind directly naturally to blow over from the water surface, etc..

Described method of ventilation of exposing to the weather refers to allow the air of nature or wind through flow surface and allow sunlight irradiate the logical of water Wind method, such as allow air from the water surface pass through and allow sunlight irradiate water or allow wind directly from the water surface naturally blow over and allow sunlight irradiate Water, etc..

Described enhanced natural ventilating method refers to directly or indirectly use the logical of Prosthesis's enhanced natural ventilating evaporation effect Water is sprayed in the air or allows water to trickle in atmosphere or allow water to drip in atmosphere by wind method, the such as method with spraying or spray Natural ventilating method, such as using air height, temperature, density relationship on the water side or side construction air channel, chimney or other Type building, to form the natural ventilating method of natural air exhaust phenomenon, such as increases the contact surface of air and water using capillarity Long-pending natural ventilating method, such as using contact area and the steaming of various forms of fillers or/and filler device increase air and water What fermentation amassed natural ventilating method etc..

Preferably, described spraying is any one or its combination in any of ultrasonic atomization method, shower nozzle spray method Method.

Preferably, described filler includes metal corrugated plate, nonmetallic corrugated plating, tiling such as asbestos shingle or metal tile or Gypsum Fibrosum Watt, brick class such as hollow brick or hollow concrete block, plasterboard, Raschig ring, Pall ring, metal gauze, nonmetallic net, mineral fibres such as Glass wool cloth, carbon fibre such as carbonization branch, space wadding, sponge, chemical fibre, staple fibre, chemical fibre product such as chemical fibre cloth Or chemical fibre blanket, Plant fiber such as cotton and fiber crops, animal fiber such as silkworm silk and wool felt, silk floss, domestic mophead any one Plant or its arbitrarily two or more being arbitrarily used in combination.

Preferably, described filler device includes vertical rod, filler and bracket；Described filler is strip or lumps, described vertical Bar is shaft or ropy or filament, and described bracket is fixed in vertical rod, and described filler one end is fixed on belt bracket.

Preferably, described filler device includes vertical rod and filler, and described filler is strip or lumps, and described vertical rod is bar Shape thing or ropy or filament, described filler one end is directly anchored in vertical rod.

Described forced ventilation method is to force air or wind to flow by the wish of people and flow through the water water surface with artificial method Or the method for ventilation contacting with water, such as force air to flow through the method for ventilation within the water surface or water with wind-powered machine (as fan), As forced air or noble gases (as nitrogen, combustion gas, flue gas, carbon dioxide etc.) to enter water foam inside with compressor Return the method for ventilation of air eventually, etc..

Preferably, first use the arbitrarily united method evaporation of any one or its of heating evaporation method, ventilation method of evaporating Concentrate the moisture of gas field recovered water, reduction further concentrates the volume of gas field recovered water；Then after volume being reduced further again Concentration gas field produced-water reinjection stratum.

It is furthermore preferred that first using heating means or waste-heat method to raise the temperature of air, form hot blast；Then reusable heat The moisture of wind evaporation and concentration gas field recovered water.

It is furthermore preferred that the moisture of the method evaporation and concentration gas field recovered water with being spray-dried.

Preferably, in order to slow down the hydrolysis rate of filler, first the PH of gas field recovered water will be concentrated with acid or/and sour gas Value adjusts to 6.5～8.5；Then use any one or its arbitrarily side in combination of heating evaporation method, ventilation method of evaporating again The moisture of method evaporation and concentration gas field recovered water.

It is furthermore preferred that described acid be hydrochloric acid, formic acid, acetic acid, dehydroactic acid, lactic acid any one or do not occur chemistry anti- The mixture of the arbitrarily two or more arbitrary proportions answered.

It is furthermore preferred that described sour gas refer to carbon dioxide, sulfur dioxide, hydrogen sulfide any one or its arbitrarily than The mixture of example.

From knowledge：Natural fiber such as cotton, fiber crops, silkworm silk etc., facile hydrolysiss in the basic conditions；By east victory gas field Field test understands, after east victory gas field recovered water adds alkaline matter, its pH value is up to 14.

Further, step 2) in, reclaim utility and/or outer with art methods gas field recovered water from concentrating Plus chemical agent.

Preferably, gas field recovered water art methods will be concentrated and reduce volume further, then reclaim utility And/or additional chemical agent.

It is furthermore preferred that with any one in heating evaporation method, ventilation method of evaporating or its arbitrarily united method, entering One step reduction concentrates the volume of gas field recovered water, then reclaims utility and/or additional chemical agent.

Preferably, in order to from concentrating the additional chemical agent such as recovery inhibitor, water discharge agent, corrosion inhibiter in the recovered water of gas field, first With in any one or its in heating evaporation method, ventilation method of evaporating arbitrarily united method evaporation and concentration gas field recovered water Moisture；Then the additional chemical agents such as inhibitor, water discharge agent, corrosion inhibiter are reclaimed.

It is furthermore preferred that first using any one in heating evaporation method, ventilation method of evaporating or its arbitrarily united method, Moisture in the recovered water of evaporation and concentration gas field, allows concentration gas field recovered water concentrate precipitation solid content or salt eutectic substance further；So Afterwards solid content or salt eutectic substance are separated recycling as the raw material of industry from the recovered water of concentration gas field；Then reclaim The additional chemical agent such as inhibitor, water discharge agent, corrosion inhibiter.

From knowledge known in this field：Domestic currently without with desalination method concentrate recovered water after, recycling concentrate adopt The successful precedent of the utility in water outlet and/or additional chemical agent or open source literature.

Further, step 2) in, in order to reclaim utility and/or additional chemical agent from the recovered water of concentration gas field, First use any one or its in heating evaporation method, ventilation method of evaporating arbitrarily united method evaporation and concentration gas field recovered water Moisture, allowing concentration gas field recovered water to concentrate further becomes solid content or salt eutectic substance and saline solution；Then salt is water-soluble Liquid, solid content or salt eutectic substance separate, and are separately recovered using as the raw material of industry or further harmless treatment.

Preferably, by solid content or salt eutectic substance existing method roasting or/and solidification such as high-temperature roasting, mix coal roasting, Firing brick-and tile, make solid building block, integrally curing is solid etc.；Or solid content is used for producing the raw material of industry and is such as used for producing Industrial salt, alkali etc..

It is furthermore preferred that separating saline solution, solid content or salt eutectic substance, it is respectively used to produce different pure salt, alkali.

Further, step 2) in, in order that it is innoxious more thorough, first with method of ventilation, heating to concentrate gas field recovered water The moisture of method any one or its arbitrarily united method evaporation and concentration gas field recovered water, then will remain after transpiring moisture again Residue or/and the further harmless treatment of residual liquid or be used for produce the raw material of industry as producing industrial salt, alkali etc..

Preferably, by residue existing method roasting or/and solidification such as high-temperature roasting, mix coal roasting, firing brick-and tile, make Solid building block, integrally curing are solid etc.；Or residue is used for producing the raw material of industry and is such as used for producing industrial salt, alkali etc..

From east victory gas field field test：After gas field recovered water concentrates, with the method for enhanced natural ventilating evaporation, can The moisture concentrating in the recovered water of gas field is all evaporated clean, be only left residue and carnallite material.

Further, step 2) in, in order to more thoroughly remove the incrustation ions such as the calcium and magnesium concentrating in gas field recovered water and Sour gas, residual hydrocarbons, first to concentrate add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one Kind or its arbitrarily the mixing of two or more arbitrary proportions mixture so as to becomes with the calcium concentrating in gas field sewage, magnesium, ferrum etc. dirty from Son forms water-fast precipitate, then precipitate is separated from the recovered water of concentration gas field；Then again use method of ventilation, The moisture of heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water.

Described alkaline matter refers to the water-soluble substanceses that the pH value of water can be made to be more than 8 (as sodium hydroxide, sodium carbonate, bicarbonate Ammonium etc.).

Described hydrophosphate refers to that any one or its in hydrophosphate soluble in water is arbitrarily two or more arbitrarily The mixture of ratio mixing.As dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate etc..

Described dihydric phosphate refers to that any one or its in dihydric phosphate soluble in water are arbitrarily two or more The mixture of arbitrary proportion mixing.As sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate etc..

Preferably, by the residue of residual or/and the further harmless treatment of residual liquid after the recovered water moisture of evaporation and concentration gas field Or be used for producing the raw material of industry as producing industrial salt, alkali etc..

Further, step 2) in, in order to recycle suppression ice agent from the concentration gas field recovered water containing suppression ice agent, first use Method of ventilation, the moisture of any one or its arbitrarily united method evaporation and concentration gas field recovered water of heating means, will concentrate Gas field recovered water is condensed into the suppression suppression ice agent liquid more than 5% for the ice agent content；Then ice agent liquids recovery will be pressed down using being such as used as The raw material of industry, hydrate inhibitor.

Preferably, the suppression suppression ice agent liquid organic acid more than 5% for the ice agent content or/and mineral acid adjustment pH value to 6～ 10, to make it meet the use requirement of hydrate inhibitor.

It is furthermore preferred that described organic acid includes formic acid, acetic acid, dehydroactic acid, any one or its any two in lactic acid Plant the mixture of any of the above ratio；Described mineral acid include hydrochloric acid, sulphuric acid any one or its arbitrarily two or more arbitrarily The mixture of ratio.

Preferably, by suppression ice agent liquid be used for producing feed additive, chemical fertilizer or acylate, inorganic acid salt, inorganic base, Organic acid, mineral acid any one.

Preferably, suppression ice agent liquid is used for producing the solidliquid mixture that solid-state presses down ice agent or presses down ice agent.

It is highly preferred that with the arbitrarily united method evaporation suppression ice agent liquid of method of ventilation, heating means any one or its In moisture, produce solid-state press down ice agent or suppression ice agent solidliquid mixture.

Further, step 2) in, in order to recycle suppression ice agent and ore deposit from the concentration gas field recovered water containing suppression ice agent Material, first uses the moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, It is condensed into the suppression ice agent and content of mineral substances concentrated solution more than 5% by concentrating gas field recovered water further；Then concentrated solution is returned Receive using as the raw material of industry.

Preferably, the concentrated solution organic acid that ice agent and content of mineral substances content are more than 5% or/and mineral acid adjustment PH are pressed down It is worth to 6～10, to make it meet the use requirement of hydrate inhibitor.

Preferably, concentrated solution is used for producing feed additive, chemical fertilizer or acylate, inorganic acid salt, inorganic base, organic Acid, the mixture of any one or any two or more arbitrary proportion mixing of mineral acid.

Preferably, concentrated solution is used for producing solid-state suppression ice agent, the solidliquid mixture of suppression ice agent and solid fossil matter etc..

Preferably, with the water in the arbitrarily united method evaporation concentrated solution of method of ventilation, heating means any one or its Point, produce solid-state and press down ice agent, the solidliquid mixture of suppression ice agent and solid fossil matter etc..

Described mineral refers to water-soluble minerals.

Further, step 2) in, in order to recycle the water-soluble polymer concentrating in the recovered water of gas field, first with ventilation The moisture of method, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, makes concentration gas field adopt Water outlet is separated into top aqueous solutions of polymers layer and bottom concentration gas field recovered water layer；Then it is separated into polymer more water-soluble Liquid and concentration gas field recovered water；Then again aqueous solutions of polymers is recycled.

Preferably, first it is precipitated as supernatant and precipitate by concentrating gas field recovered water, precipitate is comprehensively utilized further Or innoxious such as it is cured as building block；Then use the arbitrarily united method evaporation of method of ventilation, heating means any one or its again Concentrate the moisture of gas field recovered water, make that concentration gas field recovered water is separated into top aqueous solutions of polymers layer and bottom concentration gas field is adopted Water-yielding stratum；Then it is separated into aqueous solutions of polymers again and concentrate gas field recovered water；Then again aqueous solutions of polymers is reclaimed Using.

Preferably, gas field recovered water will be concentrated to comprehensively utilize further or innoxious.

Preferably, the polymerization isolated with the arbitrarily united method evaporation of method of ventilation, heating means any one or its Thing aqueous solution moisture, to recycle water soluble polymer.

Preferably, the concentration isolated with the arbitrarily united method evaporation of method of ventilation, heating means any one or its Gas field recovered water moisture, to recycle its contained utility as pressed down ice agent, mineral etc..

Further, step 2) in, in order to from concentrating, recovery in the recovered water of gas field is more to press down ice agent or suppression ice agent liquid, To in the recovered water of concentration gas field, first add any one or any two or more the mixing in formic acid, acetic acid, dehydroactic acid, lactic acid Compound, then uses method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water again Moisture.

Described formic acid, acetic acid, dehydroactic acid, lactic acid are precipitated with when should be able to effectively supplement gas field recovered water transpiring moisture The organic acid loss that machine hydrochlorate solid content brings；For reaching object defined above, as those of ordinary skill in the art, can be using existing Technological means are had to determine that the concrete kinds of organic acids adding in the recovered water of gas field, minimum addition concentration, maximum add concentration.

Preferably, first adopted with the arbitrarily united method evaporation and concentration gas field of method of ventilation, heating means any one or its The moisture of water outlet, is condensed into suppression ice agent liquid and solid content (as salt is brilliant) by concentrating gas field recovered water；Then again to suppression ice agent liquid Any one or any two or more the mixing in formic acid, acetic acid, dehydroactic acid, lactic acid is added in body and solid content (as salt is brilliant) Close.

Further, step 2) in, in order to reclaim more suppression ice agent from the recovered water of concentration gas field, first to concentration gas field Add water-soluble inorganic acid (example hydrochloric acid, sulphuric acid) in recovered water, then use method of ventilation, heating means any one or its again Anticipate the moisture of united method evaporation and concentration gas field recovered water.

Described water-soluble inorganic acid should be able to supplement precipitation acylate solid during the recovered water evaporation and concentration of gas field effectively The organic acid loss that thing brings；For reaching object defined above, as those of ordinary skill in the art, prior art means can be utilized Determine that the concrete water-soluble inorganic acid species in the recovered water of addition gas field, minimum add concentration, maximum addition concentration.

From knowledge known in this field：Hydrochloric acid can effectively dissolve calcium formate.

Further, step 2) in, in order to recycle the functional chemical agent concentrating in the recovered water of gas field, first with ventilation The moisture of method, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, makes concentration gas field adopt Water outlet is separated into top functional chemical oxidant layer and bottom concentration gas field recovered water layer；Then it is separated into functional chemical again Agent and concentration gas field recovered water；Then again functional chemical agent is recycled；Gas field recovered water will be concentrated again comprehensive further Using or harmless treatment.

Described functional chemical agent includes foaming water discharge agent, corrosion inhibiter, antisludging agent, foaming agent, sand washing agent, sand cleaning fluid The mixture of any one or any two or more arbitrary proportions.

From knowledge known in this field：External functional chemical agent is often contained (as additional in the recovered water of gas field Foaming water discharge agent, corrosion inhibiter, antisludging agent, foaming agent, sand washing agent, sand cleaning fluid etc.).

Preferably, first adopted with the arbitrarily united method evaporation and concentration gas field of method of ventilation, heating means any one or its The moisture of water outlet, makes concentration gas field recovered water be separated into top foaming water discharge oxidant layer and bottom concentration gas field recovered water layer；Then It is separated into foaming water discharge agent again and concentrate gas field recovered water；Then again foaming water discharge agent is recycled；Again by concentrated gas Field recovered water comprehensively utilizes or harmless treatment further.

Preferably, first adopted with the arbitrarily united method evaporation and concentration gas field of method of ventilation, heating means any one or its The moisture of water outlet, makes concentration gas field recovered water be separated into top inhibition oxidant layer and bottom concentration gas field recovered water layer；Then again will It is separated into corrosion inhibiter and concentrates gas field recovered water；Then again corrosion inhibiter is recycled；Enter one by concentrating gas field recovered water again Step comprehensive utilization or harmless treatment.

Preferably, first adopted with the arbitrarily united method evaporation and concentration gas field of method of ventilation, heating means any one or its The moisture of water outlet, makes concentration gas field recovered water be separated into top scale inhibition oxidant layer and bottom concentration gas field recovered water layer；Then again will It is separated into antisludging agent and concentrates gas field recovered water；Then again antisludging agent is recycled；Enter one by concentrating gas field recovered water again Step comprehensive utilization or harmless treatment are processed.

A kind of gas field of present invention recovered water method for innocent treatment, is made up of following steps：Evaporate gas field with method of ventilation The moisture of recovered water, so that gas field recovered water is innoxious；Described method of ventilation refers to using various forms of fillers or/and filler Device increases air and the contact area of water and the method for ventilation of disengagement area.

Further, described method of ventilation refer to using ultrasonic atomization method, shower nozzle spray method any one Or the method for its combination in any increases air and the contact area of water and the method for ventilation of disengagement area.

Further, described ventilation method of evaporating refers to hot blast method of evaporating.

Preferably, first raise the temperature of air with heating means, form hot blast；Then reusable heat wind evaporation gas field recovered water Moisture so that gas field recovered water is innoxious.

It is furthermore preferred that first raise the temperature of air with heating means, form hot blast；Then evaporated with spray drying process again The moisture of gas field recovered water, so that gas field recovered water is innoxious.

Described spray drying process refers to for aqueous dispersion to become fine particles to increase water and hot air area Drying meanss.

Preferably, described spray drying process refers to any one or its of ultrasonic atomization method, shower nozzle spray method The method of combination in any

Further, in order to remove the mechanical admixture in the recovered water of gas field, emulsifying hydrocarbon or/and dissolved hydrocarbon, first adopt to gas field Add inorganic flocculating agent or/and organic flocculant in water outlet so as to gas field recovered water in mechanical admixture, emulsifying hydrocarbon or/and Dissolved hydrocarbon forms floccule；Then with existing method, floccule is separated from recovered water, form clean recovered water；Then Evaporate the moisture of clean recovered water again with method of ventilation, so that gas field recovered water is innoxious.

Preferably, in order to strengthen the effect of inorganic flocculating agent or/and organic flocculant, in the recovered water of gas field, first add alkali Property material, make recovered water pH value be more than 7；Then in the recovered water of gas field, first add inorganic flocculating agent or/and organic-flocculation again Agent.

It is furthermore preferred that for the effect strengthening inorganic flocculating agent or/and organic flocculant, add in the recovered water of gas field simultaneously Enter alkaline matter, inorganic flocculating agent or/and organic flocculant；Or, first add in the recovered water of gas field inorganic flocculating agent or/and After organic flocculant, then add alkaline matter in the recovered water of gas field, the pH value of water is adjusted to more than 7.

Further, in order to remove incrustation ion, emulsifying hydrocarbon or/and the dissolved hydrocarbons such as the Ca, Mg and Fe in the recovered water of gas field, prevent The sour gas atmosphere pollution such as hydrogen sulfide and carbon dioxide during ventilation evaporation, first adds alkaline matter or phosphorus in the recovered water of gas field Sour hydrogen salt, the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate are so as to adopt with gas field Suspension or troubled liquor are reacted in water outlet；Then with existing method, suspension or troubled liquor are separated into solid content and cleaning Recovered water；Then evaporate the moisture of clean recovered water again with method of ventilation, so that gas field recovered water is innoxious.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or The mixture of its arbitrarily two or more arbitrary proportion mixing is so as to react into suspension or troubled liquor with gas field recovered water；So With existing method, clean recovered water is separated from suspension or troubled liquor afterwards；Then evaporated clean again with method of ventilation The moisture of recovered water.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Water-fast solid content；With existing method, solid content is separated from recovered water again, form clean recovered water；Then again Evaporate the moisture of clean recovered water with method of ventilation.

Preferably, described existing method refers to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, eddy flow Separation, any one or any two or more arbitrarily united method of centrifugation.

Preferably, described existing method refers to filtration, pressure-filtering tank filtration, pressure filter filter pressing, adds inorganic flocculating agent, addition Macromolecule organic flocculating agent or/and any one or any two or more arbitrarily united method of flocculation aid.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Suspension or troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to container Bottom, forms clean recovered water in upper vessel portion；Then evaporate the moisture of clean recovered water again with method of ventilation, in upper vessel portion Formed and concentrate gas field recovered water；Then separate further harmless treatment in container by concentrating gas field recovered water；Then Again by further for the solid content in container harmless treatment or high-temperature roasting.

Preferably, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or Its arbitrarily the mixing of two or more arbitrary proportions mixture so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed Suspension or troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to container Bottom, forms clean recovered water in upper vessel portion；Then clean gas field is produced in water from container and separate；Then again with leading to The moisture of the clean recovered water of wind method evaporation；Then again by further for the solid content in container harmless treatment or high-temperature roasting.

It is furthermore preferred that first the solid content in container is separated.

Preferably, first by any one or its arbitrarily two or more of alkaline matter or hydrophosphate, dihydric phosphate The mixture of meaning ratio mixing adds in container；Then again gas field recovered water is added in container, form suspension or turbid solution Body；Then stand, form clean recovered water in upper vessel portion；Then the moisture of clean recovered water is evaporated again with method of ventilation.

It is furthermore preferred that first by clean recovered water from separating in container；Then adopted with method of ventilation evaporation cleaning again The moisture of water outlet.

It is furthermore preferred that first will be arbitrarily two or more to any one or its of alkaline matter or hydrophosphate, dihydric phosphate The mixture of arbitrary proportion mixing adds in container；Then again gas field recovered water is added in container, form suspension or muddiness Liquid；Then stand, form clean recovered water in upper vessel portion, form solid content in lower vessel portion；Then by clean recovered water Separate in container, by further for the solid content in container harmless treatment or high-temperature roasting；Then use method of ventilation again The moisture of the clean recovered water of evaporation.

Preferably, first gas field recovered water is added in container；Again by alkaline matter or hydrophosphate, the appointing of dihydric phosphate A kind of or its arbitrarily two or more arbitrary proportions mixing mixture of anticipating add in container, form suspension or troubled liquor；So After stand, form clean recovered water in upper vessel portion；Then the moisture of clean recovered water is evaporated again with method of ventilation.

It is furthermore preferred that first gas field recovered water is added in container；Again by alkaline matter or hydrophosphate, dihydric phosphate The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its adds in container, forms suspension or troubled liquor； Then stand, form clean recovered water in upper vessel portion, form solid content in lower vessel portion；Then by clean extraction water from container Inside separate, by further for the solid content in container harmless treatment or high-temperature roasting；Then evaporated clean again with method of ventilation The moisture of net recovered water.

Preferably, solid content is sent into mummifying pool or/and gravity filter device filters, is dehydrated, air-dries, then further Harmless treatment.

Preferably, by further for the solid content isolated harmless treatment or high-temperature roasting.

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, add alkaline matter or hydrophosphate, di(2-ethylhexyl)phosphate in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of hydrogen salt.

Preferably, first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；Add in the recovered water of gas field again Enter the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing.

Preferably, first gas field recovered water and light oil and/or emulsifying hydrocarbon mixture are placed in container standing, then by lightweight Oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field.

Described alkaline matter refers to the water-soluble substanceses that the pH value of water can be made to be more than 8, such as sodium hydroxide, potassium hydroxide, carbonic acid Sodium, trona, natural aqueous alkali, ammonium hydrogen carbonate etc..

Described solid content includes water-fast crystal, amorphous substance, precipitate, floating thing, residue, mechanical admixture, gathers The mixture of any one or its two or more arbitrary proportions mixing of compound etc..

Further, in order to slow down the hydrolysis rate of filler, acid or/and sour gas are first used by the pH value of gas field recovered water Adjust to 6.5～8.5；Then the moisture of gas field recovered water is evaporated again with ventilation method of evaporating.

Further, in order that gas field recovered water is innoxious, first evaporate the moisture of gas field recovered water with method of ventilation, formed Concentrate gas field recovered water；Then gas field recovered water will be concentrated as inhibitor, for preventing and treating gas hydrates or being used for natural The antifreeze de-plugging of flow channel.

Preferably, gas field recovered water adjustment pH value will be concentrated to 6～10 with organic acid or/and mineral acid, to make it full The use requirement of sufficient hydrate inhibitor.

Beneficial effects of the present invention are as follows：

Instant invention overcomes the deficiency of existing gas field method for treating water cut out, can effectively solve the problem that gas field recovered water is innoxious Process problem, can effectively reduce the volume amount of gas field recovered water, can effectively solve the problem that gas field recovered water environmental pollution problem, Can gas production auxiliary agent in the recovered water of effective recycling gas field and utility, can be greatly reduced and return from the recovered water of gas field Receive and utilize the cost of gas production auxiliary agent and utility, energy consumption contained by it, freight volume and the fortune of gas field recovered water can be greatly reduced Defeated cost, process energy consumption and expense；There is enforcement easily, safe and reliable, it is widely used, promote the excellent feature such as easy；Economic effect Benefit, environmental benefit are notable.

Brief description

Fig. 1 is a kind of schematic diagram of gravity filter device；

Fig. 2 is another kind of schematic diagram of gravity filter device；

Fig. 3 is another kind of schematic diagram of gravity filter device；

Fig. 4 is a kind of schematic diagram of filler device；

Fig. 5 is another kind of schematic diagram of filler device.

Specific embodiment

Embodiment 1

Moisture is isolated from the recovered water of gas field by a kind of gas field of present invention recovered water decrement treatment method with desalination method Come, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water, reduce freight charges and the processing cost of gas field recovered water.

Described desalination method should be able to effectively reduce the volume of gas field recovered water, should be able to effectively reduce the re-injection of gas field recovered water Difficulty or/and the difficulty that effectively reduction gas field recovered water processes further or comprehensively utilizes；As those of ordinary skill in the art, Can determine the concrete scheme of described desalination method, installations and facilities, technological process by art methods, can determine from gas In the recovered water of field separated go out the ratio of moisture or percentage ratio, physical aspect, the water yield, flow, can determine from gas field extraction Isolate in water how many ratios or percentage ratio moisture, can determine the concrete one-tenth of the moisture isolated from the recovered water of gas field Point, index, various solutes content.

The concentration of the water-soluble substanceses contained by moisture separated the described recovered water from gas field just should be able to meet plant Be frequently grown requirement, or/and meet the discharge standard of state's laws rules and regulations, or/and can as in water, landscape water, work Industry water, boiler feed water, water for building, slurry, domestic water, any one use of farming, forestry, husbandary and fishing water；As this Field those of ordinary skill, by art methods can determine separated go out moisture whether meet state's laws regulation rule Can fixed discharge standard, be used as landscape water, water for industrial use etc..

Described desalination method refer to the method that separate water low for solutes content from the high water of solutes content or/and Water low to salt or/and content of mineral substances is separated from the high water of salt or/and content of mineral substances by process it is also possible to refer to Method or/and process.

Preferably, desalination method described in the present embodiment refers to method for desalting seawater.

Described method for desalting seawater is the method producing fresh water using seawater desalination, refers to obtain the mistake of fresh water from sea water again Journey or method.

Described desalination method utilize nuclear energy, solar energy, wind energy, tide energy any one or two or more arbitrarily united Method is desalinating process, device or facility provide power or/and pressure.

From knowledge：Desalination method both domestic and external and/or method for desalting seawater have more than 20 kinds at present.

From knowledge known in this field：Domestic currently without the one-tenth directly concentrating gas field recovered water with method for desalting seawater Work(precedent and open source literature.

Embodiment 2

With embodiment 1, it the difference is that only, described desalination method adopts freezing method, freezing process as light in naturally frozen Change method and artificial cooling icing desalination process, efficient embrane method such as polymeric membrane for separation method and biomembrance process, electroosmose process such as ion are handed over Change EDBM method and electric submersible bridge embrane method, the way of distillation as pressed steam distillation method, for example non-pressurised adsorption and permeation method of downward penetration, semi-transparent Embrane method, hyperfiltration, ultrafiltration such as ultrafiltrationmembrane process and Nanofiltering membrane, microfiltration method such as microfiltration embrane method, ion exchange such as ammonium carbonate Ion exchange, ion-exchange resin such as cation exchange resin and hydrion exchange resin method, cryogenic distillation process are for example low Warm multiple-effect distillation, solar energy method such as solar still method, flash method such as multistage flash vaporization, Membrane Materials desalination process, negative pressure are steamed The method of sending out such as jet flow negative pressure suction evaporation, adsorption desalination method such as electro-adsorption desalination process, dew point evaporation, spray evaporation method, vacuum Freezing method, water-electricity cogeneration method, any one or two or more arbitrarily united method of hotting mask co-production method.

From knowledge known in this field：Domestic gas water is commonly used at present adds flocculant flocculation, sedimentation, pressure mistake Filter, the processing method of reinjection into reservoir, directly do not concentrate successful precedent and the open source literature of gas field recovered water with reverse osmosis membrane, Do not use freezing method, freezing process, efficient embrane method, electroosmose process, the way of distillation, downward penetration, semi-transparent embrane method, ultrafiltration, microfiltration Method, ion exchange, ion-exchange resin, cryogenic distillation process, solar energy method, flash method, Membrane Materials desalination process, negative pressure evaporation Method, adsorption desalination method, dew point evaporation, spray evaporation method, vacuum-freezing process, water-electricity cogeneration method, hotting mask co-production method any one Plant successful precedent and the open source information directly concentrating gas field recovered water, also directly do not concentrate gas field with ultrafiltration, microfiltration method and adopt The successful precedent of water outlet and open source literature, also not with nature icing desalination process directly concentrate gas field recovered water successful precedent and Open source literature.

From knowledge known in this field：Domestic useful at present reverse osmosis membrane, electroosmose process, ultrafiltration, microfiltration method, distillation Method, cryogenic distillation process, flash method are less than the municipal sewage of 10000mg/L, reclaim the disclosure of fresh water oilfield sewage from salinity Document, but do not use reverse osmosis membrane, electroosmose process, ultrafiltration, microfiltration method, the way of distillation, cryogenic distillation process, flash method from salinity Successful precedent or the open source literature of fresh water is reclaimed in municipal sewage more than 10000mg/L, oilfield sewage.

From knowledge known in this field：Municipal sewage, oilfield sewage and gas field recovered water difference are huge；Oilfield sewage or Recovered water is usually bicarbonate sodium form water, and the incrustation ion content such as Ca, Mg and Fe is usually no more than 1000mg/L, temperature all up to 40 ～90 DEG C；And the salinity of gas field recovered water is above 10000mg/L, typically chloride-calcium type water, such as east victory gas field recovered water Salinity be more than 45000mg/L, calcium ions and magnesium ions content is up to more than 7000mg/L, generally -30～15 DEG C of temperature.

From knowledge known in this field：Taking Liaohe Oil Field as a example, separate moisture from oilfield sewage with reverse osmosis membrane Core purpose is the softened water for boiler for obtaining the higher fresh water of temperature to substitute conventional softened water technique productions, rather than is Decrement treatment is carried out to oilfield sewage；Because oil well needs to rely on water filling could produce, the oilfield sewage total amount one in this oil field The water injection rate needed for oil well production directly can not be met, need every year for a large amount of surface fresh water to inject oil reservoir for this.

From knowledge known in this field：With reverse osmosis membrane from oilfield sewage during separation water, to oilfield sewage water quality Require more tightened up than return water water quality；Before therefore reclaiming fresh water with reverse osmosis membrane from oilfield sewage, need to oilfield sewage Carry out the pretreatment more complicated, stricter than return water, need before oilfield sewage enters reverse osmosis membrane in first to oilfield sewage Add a large amount of antisludging agents, corrosion inhibiter, antibacterial, thus lead to the method process unit extremely complex it is difficult to summary, small-sized Change；And then it is high and soft far above conventional softened water technique productions at present to lead to it to reclaim the cost of fresh water from oilfield sewage Change water cost, therefore the method is difficult to popularization and application at home at present always it is more difficult to concentrate the far gas of scattered distribution, haul distance Field recovered water.

Experiment shows：The east victory gas field recovered water that salinity is 45000～50000mg/L is placed in outdoor, and in the winter time -20 DEG C environment in can generate 20% with the ice of upper volume, can be by recovered water reduction in bulk to less than 80%；Detect further Chemical examination shows, the water salinity being frozen is less than 500mg/L, disclosure satisfy that plant production requires, disclosure satisfy that and enter environment Environmental requirement, can act as slurry etc..

Embodiment 3

With embodiment 1, it the difference is that only, described desalination method refers to freezing method, freezing process, efficient embrane method, electricity Dialysis, the way of distillation, downward penetration, semi-transparent embrane method, hyperfiltration, ultrafiltration, microfiltration method, ion exchange, ion exchange resin Exchange process, cryogenic distillation process, solar energy method, flash method, Membrane Materials desalination process, Municipal Solid Waste Landfillies, adsorption desalination method, dew point evaporation Method, spray evaporation method, vacuum-freezing process, water-electricity cogeneration method, any one any series connection of hotting mask co-production method or/and the side of parallel connection Method.

Test shows：Connected with 10,000 yuan of reverse osmosis membrane assembly (or device) of 3 groups of total costs, can be from without flocculation, mistake The salinity of the pretreatment such as filter is that separation in gas field or DaNiuDi gas field recovered water is won in 1000 liters of east of 45000～50000mg/L Go out 300 liters or 30% water, the remaining recovered water that concentrates is less than 700 liters or 70%；Further detection chemical examination show, separated go out The salinity of 300 liters of water is less than 500mg/L, disclosure satisfy that plant production requires, can act as slurry or water for building etc.； Further experiment shows：The reverse osmosis membrane assembly (or device) of 10,000 yuan of this total cost can be directly from pre- without flocculation, filtration etc. Isolate more than the 120 ton of water meeting discharge standard in the east victory gas field of process, DaNiuDi gas field recovered water, be equivalent to and gas field is adopted Water outlet concentrates 1 ton of about 83 yuan/ton of integrated cost.

From knowledge known in this field：DaNiuDi gas field, east victory gas field are located at Inner Mongol Ordos City, solar energy, wind Power aboundresources, -31 DEG C of winter minimum temperature；, this gas field gas well produces the extraction water yield per year more than 450,000 taking DaNiuDi gas field as a example Side/year, 70 kilometers of averge distance carried, 42 yuan/ton of average fare, need freight charges 18,900,000 yuan/year year；This gas field recovered water all injects In less than 2500 meters of non-gas-bearing formation rock stratum, less than 5%, based on porosity 5%, this gas field is annual to need 8,000,000 sides to its porosity Non- gas-bearing formation rock stratum storage recovered water；, more than 20MPa, the high pressure of needs could be by water for 2500 meters of deep rock stratum reset pressures Injection rock stratum, 1 mouthful of maximum injection radius of water injection well is usually no more than 100 meters, and water filling depth of stratum is usually no more than 100 meters, Calculate the recovered water that 1 mouthful of water injection well can only accommodate 15.7 ten thousand sides accordingly, need every year to build 3 mouthfuls of water injection well ability for this this gas field The produced-water reinjection stratum that it is produced；Calculate further and understand, build 1 mouthful and accommodate 15.7 ten thousand side's recovered waters, 2500 meters of note Well and its re-injection system need more than 1,000 ten thousand yuan of expenses；Calculated from the actual motion creation data of DaNiuDi gas field, 1 ton Recovered water need about 100 yuan/ton energy consumption, operation, processing cost etc. could reinjection into reservoir, calculate accordingly and understand 1 ton of recovered water Re-injection, transport about 142 yuan/ton of integrated cost；Calculate further and understand, whole re-injection ground with current DaNiuDi gas field recovered water The processing method of layer is compared, and directly the DaNiuDi gas field extraction water yield is reduced 1 ton with reverse osmosis membrane assembly (or device), can produce The extraction water yield reduction 30% in this gas field 450,000 sides/year directly can be produced direct economy by raw 59 yuan/ton of direct economic benefit Benefit 8,850,000 yuan/year, remarkable in economical benefits；Therefore, do not carry out pretreatment, directly concentrate gas field recovered water with reverse osmosis Scheme is feasible.

From when knowledge known in this field, gas field development initial stage or gas well gas testing, recovered water can be produced but there is no dirt Water treatment facilities, needs first to be stored to a certain amount of with tank, then with oil truck, recovered water is transported to far sewage plant again and processes, Even more than 500 kilometers of some gas testing well haul distances, freight charges are more than 300 yuan/ton；To the east of victory gas field as a example, this gas field is currently in Initial stage of development, does not have sewage plant or sewage treatment facility, and 100,000 sides being produced every year/year recovered water is all transported to 110 with oil truck DaNiuDi gas field sewage plant outside kilometer is processed and reinjection into reservoir, 220 kilometers of the averge distance carried of 1 ton of recovered water, and average fare is high Reach 132 yuan/ton；Calculate by 100 yuan/ton of the re-injection integrated cost of DaNiuDi gas field 1 side's recovered water and understand, east 1 ton of gas field of victory is adopted The re-injection of water outlet, about 232 yuan/ton of integrated cost of transport；Calculate further and understand, be all transported to current east victory gas field recovered water The processing method of DaNiuDi gas field reinjection into reservoir is compared, with reverse osmosis membrane assembly (or device) directly by the east victory gas field extraction water yield 1 ton of reduction, can produce 149 yuan/ton of direct economic benefit, can by the extraction water yield reduction 30% in this gas field 100,000 sides/year Produce direct economic benefit 4,470,000 yuan/year, remarkable in economical benefits.

Described gas field recovered water can contain methanol and not contain inhibitor it is also possible to containing inhibitor and not containing methanol, Methanol and inhibitor can be contained it is also possible to without methanol and not contain inhibitor simultaneously.

Described gas field recovered water refer in natural gas extraction or production process of natural gas produce recovered water, coal bed gas or/ Exploit the recovered water producing in production process, shale gas or/and mud stone gas with coal-formed gas and exploit the extraction producing in production process The recovered water that produces in water, oil field gas well or associated natural gas production process, produce during gas hydrates ore deposit Development and Production Any one of the recovered water producing in the recovered water of life, gas condensate field exploitation or production process.

Described gas hydrates ore deposit refers to that the initial condition of contained natural gas or/and hydrocarbon is gas hydrates.

Described gas condensate field refers to light oil (or liquid hydrocarbon) yield of the natural gas well more than 0.2m³The gas field of/day.

Described gas field recovered water may refer to recovered water, the natural gas purification processing factory that gas gathering station or/and measuring station produce In the recovered water that recovered water, natural gas surface production or the accumulating website (as booster station, pressure-reducing station, gas distribution station etc.) producing produces Any one or any two or more arbitrary proportions mixture.

Described gas field recovered water may refer to any one production link in natural gas extraction or production process of natural gas, The recovered water that production equipment, production technology produce.

Described gas field recovered water may refer to any two in natural gas extraction or production process of natural gas or two with The mixture of upper production link, production equipment, production technology produced recovered water arbitrary proportion.

Described gas field recovered water may refer to extraction that separate from natural gas runner or that natural gas runner produces Water.

Described natural gas runner refers to the natural gas well, pit shaft, well head, valve, effusion meter, restricting element, pipe fitting, separation The natural gas flows such as device, pipeline are any one or any two or more through passage.

Described gas field recovered water may refer to mixed by the liquid hydrocarbon isolated in natural gas runner or/and emulsifying hydrocarbon and water The aqueous water being formed or recovered water is separated further in compound.

Described gas field recovered water may refer to the liquid being further separated out in the emulsifying hydrocarbon isolated from natural gas runner State water or recovered water.

Described gas field recovered water contains liquid hydrocarbon or/and emulsifying hydrocarbon.

Said liquid hydrocarbon can be other colors such as colourless or yellow or brown, black it is also possible to refer to Light crude oil.

Described gas field recovered water also refers to the subsoil water essentially from oil reservoir or oil-gas Layer of Oil/gas Well institute output；Described oil Gas well may refer to also produce the oil well of natural gas (or associated gas) while producing crude oil it is also possible to refer to produce natural gas Also produce the natural gas well of light crude oil or condensate simultaneously.

Described gas field recovered water may refer to vaporous water it is also possible to refer to aqueous water or solid water.

The moisture separated the described recovered water from gas field can be that aqueous water, solid water or ice, vaporous water or water steam The mixture of any one or any two or more arbitrary proportions of vapour.

Embodiment 4

For reduces cost, in gas gathering station or near gas gathering station, near in well site or well site, in purification plant or purification plant Moisture is separated, shape from the recovered water of gas field by any one neighbouring place or any more than 2 places with desalination method Become to concentrate gas field recovered water, to reduce the volume of gas field recovered water.

Embodiment 5

Further, for reduces cost, elder generation is in gas gathering station or near gas gathering station, near in well site or well site, purification Any one place in factory or near purification plant or any more than 2 places, with desalination method by moisture from gas field recovered water In separate, formed and concentrate gas field recovered water；Then again by concentrate gas field recovered water deliver to another one or multiple place or Website.

Embodiment 6

Further, for reduces cost, first in gas gathering station or gas gathering station near, in well site or near well site, only Change any one place in factory or near purification plant or any more than 2 places, with desalination method, moisture is produced from gas field Separate in water, formed and concentrate gas field recovered water；Then another one or multiple place are delivered to by concentrating gas field recovered water again Or website；Then with desalination method, moisture is separated from the recovered water of concentration gas field again, to reduce gas field extraction further Water volume.

Embodiment 7

Experiment shows：With 2～20% dilute hydrochloric acid routine cleaning reverse osmosis membrane assembly or device, or with 2～20% Dilute hydrochloric acid regular soaking and washing reverse osmosis membrane assembly, the pollutant that can effectively dissolve, remove on film；Further experiment shows： Every 6～24 hours, 1 reverse osmosis membrane assembly of dilute hydrochloric acid soaking and washing with 2～20%, the reverse osmosiss of 10,000 yuan of 1 set of total cost Membrane module (or device) can directly from the east victory gas field without flocculation, the pretreatment such as filtering, DaNiuDi gas field recovered water point Separate out more than the 240 ton of water meeting discharge standard, can be than identical reverse osmosis membrane assembly (or the dress without the regular soaking and washing of hydrochloric acid Put) separate more than the 120 ton of water meeting discharge standard, that is, more：Reverse osmosis membrane can be extended with the method for the regular soaking and washing of hydrochloric acid The service life of assembly (or device) or improve 1 times of its throughput.

From knowledge known in this field：East victory recovered water pH value about 6～6.5, in muddy shape, after standing bottom have heavy Starch generates it is allowed to be mixed into acidic liquid, also allows to add alkaline matter, produced precipitate does not affect recovered water and subsequently locates Science and engineering skill；Reverse osmosiss or electrodialysis plant directly can be cleaned with hydrochloric acid, soak, in the hydrochloric acid residual liquid sodium hydroxide after cleaning With rear in alkaline or neutral when it is allowed to and can mix with gas field recovered water；

Embodiment 8

Preferably, in gas gathering station or near gas gathering station, in well site or near well site, in purification plant or purification plant is attached Any one near place or any more than 2 places, first add in the recovered water of gas field acid by extraction water ph value adjust to 5 with Under, then with desalination method, moisture is separated from the recovered water of gas field again.

Laboratory experiment shows：When adding hydrochloric acid in victory gas field recovered water eastwards, produce a large amount of gas bubbles, simultaneously outward appearance by Opaque gradually become translucent, foam dissipate after the water surface occur a small amount of black oil droplet；Part carbonic acid in this explanation recovered water Calcium has dissolved, and the gas being generated creates air supporting effect, and the oil emulsion in recovered water is carried to the water surface；Therefore, Xiang Cai Add acid can effectively slow down the pollution of reverse osmosis membrane and other desalting plants in water outlet, improve its efficiency.

Embodiment 9

Preferably, described gravity filter device refers to uncovered or open to atmosphere natural filtration device, also refers to rely on liquid certainly Heavy sensation of the body power passes through the defecator of filter layer or filtrate.

Shown in Figure 1, the described gravity filter device that the present embodiment uses includes container casing 100 and the setting remained silent The filter layer 101 of bottom in container casing 100；Described container casing 100 bottom or bottom are provided with outlet 104, vessel shell The top of body 100 arranges backwash outlet 103 and water inlet 105 from top to bottom, and the top of container casing 100 is provided with blow vent 102.

Operation principle explanation：Normal filtration flow process：Recovered water enters in housing 100 from water inlet 105, relies on self gravitation By filter layer 101, impurity is retained by filter layer, and clean recovered water flows out from outlet 104；Blow vent 102 ensures air certainly By turnover housing 100, to make to keep normal pressure in housing 100.

Backwash flow process：After certain time, clean recovered water is allowed to enter filter layer 101 from outlet 104, filter layer 101 internal or/and top impurity punchings float, and carry it through backwash outlet 103 and flow out.

The filter layer of described gravity filter device is fine by plant granule such as walnut shell, Plant fiber such as cotton and fiber crops, chemistry Dimension, staple fibre, chemical fibre such as chemical fibre blanket and chemical fabric, animal fiber such as silkworm silk and wool felt, mineral grain, mineral fibres are such as Any one arbitrarily two or more any ratio of glass wool cloth, plant sintered particles such as activated carbon, carbon fibre such as carbonization branch The mixture of example is constituted.

Preferably, described mineral grain refers to sand, sand, anthracite or coal particle, haydite, floating bead, brick and tile granule in small, broken bits, treasure Zhu Yan, kieselguhr, Muscovitum, finely crushed glass granule, concrete particle in small, broken bits, gypsum particle, rock particles in small, broken bits, soil sintering The mixture of any one or any two or more arbitrary proportions of grain.

Experiment shows：After allowing east victory gas field recovered water rely on the filtering layer that self gravitation consists of 3 layers of chemical fibre blanket, extraction Water is become colorless transparence by yellow muddiness shape, and filtering layer top remains one layer of yellow solid content；East victory gas field recovered water is allowed to rely on After the 100mm filtering layer being made up of fine sand, recovered water is become colorless transparence self gravitation by yellow muddiness shape, filtering layer top One layer of yellow solid content of residual.Further experiment shows：With the pressure of 0.5MPa, east victory gas field recovered water is made to pass through 3 stratification The filtering layer of cilium blanket composition, the outward appearance of recovered water is still yellow muddiness shape；With the pressure of 0.5MPa, east victory gas field recovered water is made to lead to Cross the 100mm filtering layer being made up of fine sand, the outward appearance of recovered water is still yellow muddiness shape；Victory gas field recovered water adds 50mg/L eastwards Flocculant poly aluminum chloride and the high polymer coagulant PAMC of 1mg/L stirring, produce in recovered water Raw a large amount of floccules, this flocculent recovered water is passed through the 100mm filtering layer being made up of fine sand, filtration with the pressure of 0.5MPa Recovered water outward appearance afterwards is still yellow muddiness shape；Thus illustrate：East victory gas field recovered water relies on self gravitation to pass through simple filtering layer When it is not necessary to flocculant also can effectively filter its contained impurity, and under pressure regardless of whether using flocculant equal Its contained impurity can not be filtered with simple filtering layer；Therefore, the method relying on gravity and simple filtration, can adopt to east victory gas field Water outlet is effectively purified, pretreatment, and effect is significant.

From knowledge known in this field：Filter-press is defecator commonly used in the art, belongs to pressure vessel, mistake Filtering layer is generally divided into 3～5 grades, generally more than 1 meter of filter layer thickness, and pressure to be relied on forces the water through filter layer；In order to prevent Fine particle impurity in water passes through filter layer, all first adds inorganic flocculating agent or/and organic flocculant before filtration in water (being commonly called as flocculation aid)；When pressure is higher, the insoluble impuritiess microgranule in water or its floccule can crush under pressure, energy Enough easily pass through the filter layer of thinner thickness；Therefore, filter-press is to the classification of filtrate, material and filter layer thickness, backwash Method etc. requires strictly, to need Specialty Design, manufacture, cost and operating cost all higher.

From knowledge known in this field：Gas well, the ability of gas gathering station output recovered water vary, the adopting of a large amount of gas wells The water outlet daily output is less than 20 liters/day.Taking prolongation gas field, gas field of pacifying the border region as a example, its many gas gathering stations recovered water daily output is less than 2 Side/day；Therefore in the gas gathering station of such recovered water yield very little, appointed with the filtration that gravity filter device just can complete recovered water Business is it is not necessary to pressure filter improves the rate of filtration.

Embodiment 10

With embodiment 9, difference is,

Shown in Figure 3, described gravity filter device includes uncovered container casing 200 and is arranged on container casing 200 The filter layer 201 of interior bottom；Described container casing 200 bottom or bottom are provided with outlet 202, the top of container casing 200 from Up to lower setting backwash outlet 203 and water inlet 204.

Operation principle explanation：Normal filtration flow process：Recovered water enters in housing 200 from water inlet 204, relies on self gravitation By filter layer 201, impurity is retained by filter layer, and clean recovered water flows out from outlet 202.

Backwash flow process：After certain time, clean recovered water is allowed to enter filter layer 201 from outlet pipe 202, filtering layer 201 internal or/and top impurity punchings float, and carry it through backwash outlet 203 and flow out.

Embodiment 11

With embodiment 9, difference is,

Shown in Figure 3, described gravity filter device includes uncovered container casing 300 and is arranged on container casing 300 The filter layer 301 of interior bottom；Described container casing 300 bottom or bottom are provided with outlet 302.

Operation principle explanation：Enter at extraction water from container housing 300 open topped in housing 300, rely on self gravitation By filter layer 301, impurity is retained by filter layer, and clean recovered water flows out from outlet 302.

Embodiment 12

In order to solve the pollution problem of desalting plant, extend its service life, first gas field recovered water is stood, make recovered water In contamination precipitation, form clean recovered water；Then with desalination method, moisture is separated from clean recovered water again.

Test shows：East victory gas field recovered water 1000ml is placed in 1000ml separatory funnel, standing, after 1 hour, produces Portion waterborne separates out 1～2ml light oil；Continue standing after 2 days, the outward appearance of recovered water is become colorless by yellow muddiness is opaque Bright, separatory funnel bottom precipitation 1～5ml precipitate；Open the cock of separatory funnel bottom and upper lid, precipitate flows out point Liquid funnel.

From knowledge known in this field：Water is separated the simple mature technology belonging to this area with precipitate.

From knowledge known in this field：East victory gas field recovered water outward appearance is in black or the muddy opaque shape of yellow, containing black Color light oil 1～3%, Na⁺、Ka⁺Content 8700mg/L, Ca²⁺Content 7000mg/L, Mg²⁺Content 300mg/L, Cl^-Content 25000mg/L, total salinity is more than 45000mg/L.

Embodiment 13

In order to there is light oil and/or emulsifying hydrocarbon when preventing from being separated moisture from the recovered water of gas field with desalination method Flash burn, and solve the pollution problem of desalting plant, first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；So With desalination method, moisture is separated from the recovered water of gas field more afterwards, formed and concentrate gas field recovered water.

Preferably, first light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field, then by light oil and/or breast Change hydrocarbon and be further separated into light oil and water；Then with desalination method, moisture is separated from the recovered water of gas field again, formed Concentrate gas field recovered water.

Embodiment 14

In order to there is light oil and/or emulsifying hydrocarbon when preventing from being separated moisture from the recovered water of gas field with desalination method Flash burn, and solve the pollution problem of desalting plant, first with energising oxidation such as electrolytic oxidation, catalysis oxidation, biological oxidation, ultrasonic oxygen Change, the method for any one or the two or more combination in any of Corona Oxidation such as discharge oxidation, ionization etc. by emulsifying hydrocarbon or/and gently Then moisture separated from the recovered water of gas field with desalination method, formed and concentrate gas field recovered water by matter oil oxidation Decomposition again.

Embodiment 15

In order to remove incrustation ion, emulsifying hydrocarbon or/and dissolved hydrocarbon, hydrogen sulfide and the dioxies such as the Ca, Mg and Fe in the recovered water of gas field The sour gas such as change carbon, and solve the pollution problem of desalting plant, in the recovered water of gas field, first add alkaline matter or phosphoric acid hydrogen Salt, the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate mixture so as to gas field recovered water React into suspension or troubled liquor；Then with existing method, suspension or troubled liquor are separated into solid content and clean extraction Water；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water, to reduce gas field The volume of recovered water.

Described dissolved hydrocarbon refers to light oil or the hydrocarbon being dissolved in the recovered water of gas field.

From knowledge known in this field：Domestic generally removed in gas field recovered water with flocculant of polymeric aluminium chloride at present Mechanical admixture, oil emulsion, sometimes for strengthen aluminium polychlorid flocculating effect add in the recovered water of gas field calcium hydroxide or Sodium hydroxide, the pH value of gas field recovered water is adjusted to 7～9；Domestic currently without only in the recovered water of gas field add basic species Matter or hydrophosphate, dihydric phosphate, using its precipitation purified gas with incrustation ions such as Ca, Mg and Fes in the recovered water of gas field The open source literature of field recovered water or successful precedent；From knowledge known in this field, when gas field extraction water ph value is 7～9, still Containing incrustation ions such as a large amount of Ca, Mg and Fes, such as east victory gas field extraction water ph value is adjusted to after 8 its calcium ions and magnesium ions content still high Reach more than 3000mg/L.

From knowledge known in this field：The domestic current machinery being removed with flocculant of polymeric aluminium chloride in the recovered water of gas field When impurity, oil emulsion, its technique can be summarized as：To in the recovered water of gas field, first add flocculant of polymeric aluminium chloride and organic-flocculation Agent, then allows recovered water enter settling tank sedimentation, or enters flotation tank air supporting, so that floccule is settled down to tank bottom or flotate to Then more clear recovered water in settling tank or flotation tank is delivered to surge tank by the water surface；Then with pump by more clear adopting in surge tank Pressure filter tank is sent in water outlet, fine filtering tank is filtered, and forms cleaning recovered water；Then add in cleaning recovered water again Reinjection into reservoir after corrosion inhibiter, antisludging agent, antibacterial；Then tank bottom will be settled down to or flotate to the floccule of water and put into concentration tank Interior, and add flocculant of polymeric aluminium chloride and/or organic flocculant again in floccule, so that floccule is concentrated further de- Water；Then the floccule after concentrating is sent into pressure filter or the further dehydration and drying of drying bed.

Embodiment 16

With embodiment 15, it the difference is that only, described existing method refers to standing, precipitation, air supporting, gravity filtration dress Put any one or any two or more arbitrarily united method of filtration, solid- liquid separation, cyclonic separation, centrifugation.

Experiment shows：East victory gas field recovered water 1000ml is placed in 1000ml separatory funnel A, standing, after 1 hour, produces Portion waterborne separates out 1～2ml light oil；Open separatory funnel A lid and bottom cock, recovered water is put into another 1000ml and divides In liquid funnel B, then again light oil is put in beaker A；Then add 5g hydroxide again in the recovered water of separatory funnel B Sodium, 15g sodium carbonate, rocking separatory funnel B makes it be uniformly dissolved, and the recovered water in separatory funnel B is changed into muddy suspension；Standing Separatory funnel B24 hour, water white cleaning recovered water is formed at separatory funnel B top, and white depositions are formed at bottom；Open Separatory funnel B lid and bottom cock, bottom precipitate is put in beaker B, only remains water white cleaning in separatory funnel B Recovered water；By the precipitate in beaker B with 3 layers of filter paper filtering, precipitate is stayed above filter paper, filtrate be in colorless and transparent simultaneously Flow in beaker C, then the cleaning recovered water in filtrate and separatory funnel B in beaker C is mixed；Then hard paper or tinsel Will be left in the precipitate above filter paper to clear up, become residue with high-temperature roasting；Then by the cleaning recovered water in separatory funnel B Concentrated with reverse osmosis membrane, more than 30% fresh water can be isolated；Further experiment detection show, separated go out fresh water mineralising Degree is less than 500mg/L, meets the environmental protection standard of draining outside country, meets plant normal growth needs, can act as water for building； Further experiment detection shows, the residue that precipitate electric furnace high-temperature roasting is formed meets national environmental standard, can be emitted into In environment；Further experiment shows, in separatory funnel B, muddy suspension adds PAMC organic flocculant Or/and inorganic flocculating agent aluminium polychlorid；Standing separatory funnel B6 hour, water white cleaning is formed at separatory funnel B top Recovered water, white or yellow mercury oxide are formed at bottom；Open separatory funnel B lid and bottom cock, bottom precipitate is put into In beaker B, in separatory funnel B, only remain water white cleaning recovered water；By the precipitate in beaker B with 2 layers of filter paper filtering, sink Starch is stayed above filter paper, and filtrate is in equally colorless and transparent and flows in beaker C；It follows that cation polypropylene acyl Amine organic flocculant or/and inorganic flocculating agent aluminium polychlorid can accelerate calcium in sodium hydroxide, sodium carbonate and gas field recovered water The settling velocity of solid content can be improved 4 times by the solid- liquid separation speed of the muddy suspension of magnesium ion reaction；And energy Enough effectively enhancing sedimentary effects of filter paper filtering, can allow 2 metafiltration paper reach the filter effect same with 3 metafiltration paper.

Experiment shows：East victory gas field recovered water 1000ml is placed in 1000ml separatory funnel A, standing, after 1 hour, produces Portion waterborne separates out 1～2ml light oil；Open separatory funnel A lid and bottom cock, recovered water is put into another 1000ml and divides In liquid funnel B, then again light oil is put in beaker A；Then add 5g hydroxide again in the recovered water of separatory funnel B Sodium, 15g sodium carbonate, rocking separatory funnel B makes it be uniformly dissolved, and the recovered water in separatory funnel B is changed into muddy suspension；Standing Separatory funnel B24 hour, water white cleaning recovered water is formed at separatory funnel B top, and white depositions are formed at bottom；Open Cleaning recovered water water white in separatory funnel B is released with needle tubing and is put in beaker B by separatory funnel B lid；Then beat Open separatory funnel B bottom cock, bottom precipitate is put in beaker C；Again by the precipitate in beaker C with 3 layers of chemical fibre blanket Filter, precipitate is stayed above woollen blanket, filtrate is in colorless and transparent and flows in beaker D, then again by the filtration in beaker D Cleaning recovered water mixing in liquid and beaker B；Then will be left in the precipitate above woollen blanket to clear up with sheet glass, use electric furnace High-temperature roasting becomes residue；Then use reverse osmosis membrane separation beaker B in cleaning recovered water, can isolate more than 30% light Water；Further experiment detection shows, separated go out fresh water salinity be less than 500mg/L, meet national environmental standard, meet and plant Thing normal growth needs, and can act as water for building；Further experiment detection shows, precipitate is formed with electric furnace high-temperature roasting Residue meets national environmental standard, can be emitted in environment；Further experiment shows, adds the sun of 100mg/L in beaker C Cationic polyacrylamide organic flocculant simultaneously stirs, and then filters the precipitate in beaker C with 1 layer of chemical fibre blanket again, Precipitate is stayed above woollen blanket, and filtrate is in equally colorless and transparent and flows in beaker D；It follows that cation polypropylene Amide organic flocculant can effectively strengthen the effect of chemical fibre blanket filtering precipitate, and 1 layer of woollen blanket can be allowed to reach and 3 layers of woollen blanket Same filter effect.

Embodiment 17

With embodiment 15, it the difference is that only,

Shown in Figure 3, described gravity filter device includes uncovered container casing 300 and is arranged on container casing 300 Interior fine sand filter layer 301；Described container casing 300 bottom or bottom are provided with outlet 302.

Operation principle explanation：Suspension or troubled liquor or extraction water from container housing 300 open topped containing solid content Place enters in housing 300, relies on self gravitation to pass through fine sand filter layer 301, and solid content or impurity are by 301 sections of fine sand filter layer Stay, clean recovered water flows out from outlet 302.

After a period of time, fine sand filter layer 301 retains a large amount of solid contents above, with existing method as manually or mechanically Solid content is removed above fine sand filter layer 301 by method for cleaning, then supplements one layer of laying again on fine sand filter layer 301 Fine sand, you can be continuing with；Or, after a period of time, with existing method such as manually or mechanically method for cleaning by fine sand mistake The solid content of filtering layer 301 retention clears in container casing 300 together with fine sand filter layer 301, is then again holding New fine sand filter layer 301 is laid with fine sand, you can be continuing with device housing 300.

Embodiment 18

To in the recovered water of gas field, first add any one or its any two of alkaline matter or hydrophosphate, dihydric phosphate The mixture of kind of any of the above ratio mixing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed suspension or Troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to lower vessel portion, Upper vessel portion forms clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, on container Portion forms and concentrates gas field recovered water；Then separate further harmless treatment in container by concentrating gas field recovered water；So Afterwards again by further for the solid content in container harmless treatment or high-temperature roasting.

Embodiment 19

To in the recovered water of gas field, first add any one or its any two of alkaline matter or hydrophosphate, dihydric phosphate The mixture of kind of any of the above ratio mixing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed suspension or Troubled liquor；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to lower vessel portion, Upper vessel portion forms clean recovered water；Then clean gas field is produced in water from container and separate；Then use desalination method again Moisture is separated from clean recovered water, is formed and concentrate gas field recovered water；Then again will be further for the solid content in container Harmless treatment or high-temperature roasting.

Embodiment 20

First any one or its arbitrarily two or more arbitrary proportion of alkaline matter or hydrophosphate, dihydric phosphate are mixed The mixture closing adds in container；Then again gas field recovered water is added in container, form suspension or troubled liquor；Then quiet Put, form clean recovered water in upper vessel portion；Then with desalination method, moisture is separated from clean recovered water again, holding Device top forms and concentrates gas field recovered water.

Embodiment 21

First gas field recovered water is added in container；Again by alkaline matter or hydrophosphate, dihydric phosphate any one Or the mixture of its arbitrarily two or more arbitrary proportion mixing adds in container, form suspension or troubled liquor；Then stand, Form clean recovered water in upper vessel portion；Then with desalination method, moisture is separated from clean recovered water again, in container Top forms and concentrates gas field recovered water.

Embodiment 22

With embodiment 15,18-21, it the difference is that only, solid content is sent into mummifying pool or/and gravity filter device Filter, be dehydrated, air-dry, then further harmless treatment.

From knowledge known in this field：Remove aqueous very high solid content moisture with mummifying pool and belong to mature technology.

It is furthermore preferred that before by solid content mummification or further harmless treatment, first the pH value of solid content is adjusted with acid To 6-9.

Embodiment 23

With embodiment 15,18-22, it the difference is that only, allows solid content rely on gravity filtration in sand filter, separates Become upper clear supernate and bottom precipitate；Then upper clear supernate is taken out and mix with recovered water；Then by bottom precipitate and coal dust, Moulded coal is made after soil mix homogeneously；Then high-temperature roasting after air-drying moulded coal becomes residue；Then again by residue system be used as building materials, The raw material paved the way etc..

It is furthermore preferred that before by solid content mummification or cleaning, or before solid content is mixed with fine coal or/and soil, First with acid, the pH value of solid content is adjusted to 6-9.

From knowledge known in this field：It is further that the mud that gas field recovered water produces at present is all initially charged organic flocculant Concentrate, be then dehydrated with pressure filter again, then air-dry dry in the sun or natural mummification again, then use natural gas or diesel oil to burn again；State Interior currently without by the successful precedent of produced for gas field recovered water mud and high-temperature roasting after coal dust mixing production of shaped coal or open source literature.

To the east of as a example victory gas field field test, the technique of this experiment may be summarized to be：First east victory gas field recovered water is put into Stand 2 days in 50 side's Horizontal normal pressure oil tanks, then the recovered water of oil tank bottom is added in 50 sides uncovered side tank, simultaneously by gas field 1.5% sodium carbonate of the extraction water yield, 0.5% sodium hydroxide add in 50 sides uncovered side tank, use circulating pump circulation stirring side simultaneously Troubled liquor in tank 24 hours；Then standing sedimentation 12 hours, allow troubled liquor be separated into cleaning recovered water and precipitate；So Afterwards the cleaning recovered water pumping on square tank top is delivered to and process further in another water storage side's tank or use reverse osmosis membrane assembly Or device concentrates；Then the precipitate slush pump in square tank or immersible pump are pumped to 20 meters × 4 meters × 1.5 meters of overall dimensions Uncovered husky filter Fang Chi in filter, solid content is stayed above the sand bed of husky filter Fang Chi, and filtrate passes through the drainage at the bottom of pond portion of husky filter side Pipe flow in collecting tank certainly；Then by the cleaning recovered water in collecting tank with being pumped in 50 sides uncovered side tank, and from oil tank Alkali deposited fall is added again after the recovered water mixing of bottom；Then with spade, the solid content above husky filter side pond sand bed is cleaned out husky filter Fang Chi, and mix homogeneously with fine coal, loess, then make moulded coal and air-dry；Then air-dried moulded coal is added in stove fire and be fired into Then slag is used as the raw material of building block by slag.

Embodiment 24

With embodiment 15,18-21, it the difference is that only, solid content is mixed homogeneously with fine coal, soil, then makes Shaped coal simultaneously air-dries；Then air-dried moulded coal is added in stove fire and be fired into slag, then slag is used as the former material of building block Material.

Preferably, solid content is mixed homogeneously with fine coal or/and soil, then make building block or brick and tile blank.

It is furthermore preferred that before mix solid content with fine coal or/and soil, first the pH value of solid content is adjusted to 6- with acid 9.

To the east of as a example victory gas field field test, the modified technique of this experiment can also be summarised as：First by east victory gas field extraction Water is put in 50 side's Horizontal normal pressure oil tanks and is stood 2 days, then adds in 50 sides uncovered side tank by the recovered water of oil tank bottom, simultaneously Gas field is produced 1.5% sodium carbonate of the water yield, 0.5% sodium hydroxide adds in 50 sides uncovered side tank, simultaneously with circulation pump circulation Troubled liquor in stirring side's tank 24 hours；Then standing sedimentation 12 hours, allow troubled liquor to be separated into cleaning recovered water and to sink Starch；Then the cleaning recovered water pumping on square tank top is delivered to and process further in another water storage side's tank or use reverse osmosiss Membrane module or device concentrate；Then the precipitate in square tank is continued standing more than 2 days, be further separated out supernatant, then will Supernatant is used after being pumped in another side's tank and being mixed with the recovered water from oil tank bottom and is added alkali deposited fall again；Then with digging Ditch machine is mixed homogeneously by the precipitate side of cleaning out tank and with fine coal, loess, then makes briquette and air-dries；Then by air-dried briquette Add in stove fire and be fired into slag, then slag is used as the raw material of building block.

Embodiment 25

With embodiment 15,18-24, it the difference is that only, described solid content includes water-fast crystal, amorphous Any one or its two or more arbitrary proportions mixing of thing, precipitate, floating thing, residue, mechanical admixture, polymer etc. mixed Compound.

Embodiment 26

With embodiment 15,18-21, it the difference is that only, described alkaline matter refers to the water that the pH value of water can be made to be more than 8 Soluble substance, such as sodium hydroxide, potassium hydroxide, sodium carbonate, trona, natural aqueous alkali, ammonium hydrogen carbonate etc..

Experiment is shown with detection：Sodium hydroxide or/and sodium carbonate are added in the recovered water of east victory gas field, in recovered water Precipitate (the including carbonate and hydroxide) surface area that the incrustation ions such as Ca, Mg and Fe are formed is huge, can form vitriol in water Spend larger floccule, can active adsorption light oil, emulsifying hydrocarbon, dissolved oil, can be with light oil, emulsifying hydrocarbon, dissolved oil shape Become the larger floccule of alumen ustum；Therefore, when sodium hydroxide or/and sodium carbonate add in recovered water, there is good flocculating function, The inorganic flocculating agents such as flocculant of polymeric aluminium chloride and organic flocculant can be replaced completely.

Experiment is shown with detection：0.2% sodium hydroxide, 0.3% sodium carbonate are added the 100ml that apparatus plug graduated cylinder contains eastern In the recovered water of victory gas field, firmly rocking tool plug graduated cylinder makes alkali dissolution, then stands, then a large amount of bulk flcos in recovered water, In 10 minutes be rapid subsidence to measuring bottom, in water, remaining flco is few；Firmly rock tool plug graduated cylinder again, then flco crushes, shape Become flco in small, broken bits in a large number, after 1 hour, still have flco in small, broken bits in a large number to float in water；Therefore, recovered water staticly settles process In, should not be stirred for or disturbance, otherwise settling of floccus becomes difficult；It follows that after alkali is added recovered water and stirs, Should not be filtered with dynamic or flowing method, preferably adopt static or standing method to filter.

The field test in laboratory experiment and east victory gas field shows：The effect of technology produced by different Adding Way of alkaline matter Fruit difference is huge or even entirely different, as shown in the table.

Several different plus alkali methods experiment result of east victory gas field recovered water

The field test in east victory gas field shows：This experiment with 2 50 side's Horizontal normal pressure tank oil-water separation in turn, with 4 50 Uncovered side's tank standing sedimentation in turn of side, with 2 sets 2 sides/when reverse osmosis unit series connection concentrate, No. 1 gas collection is won in the average daily east that processes Stand recovered water 15 sides/day；Its flow process can be sketched：Gas gathering station recovered water oil truck is transported to 50 side's Horizontal normal pressure tanks, will with pump It pumps into 2～3 days separation light oils of standing in tank, then recovered water 20 side separating after light oil is pumped into 50 sides uncovered side tank Interior, 200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide are added in 50 sides uncovered side tanks simultaneously, and be stirred continuously 8 hours, then Heavy 24 hours of standing, precipitate is sink to Sedimentation tank bottom, and clean recovered water is on precipitate top；Detection shows further, clean Net recovered water is in colorless and transparent, does not have floccule, and content of impurities is less than 1mg/L, pH value=12～14, and hydrogen sulfide contains Amount, carbon dioxide content, total hydrocarbon content all meet environmental protection standard requirement, and air is not polluted；By precipitate coal dust, soil Make briquette and air-dry a laggard one-step baking, roasting residue meets environmental protection standard requirement；Further experiment detection shows, clean extraction Water does not have fouling tendency, is not added with antisludging agent yet non flouling behaviour.

The field test in east victory gas field further demonstrates that：200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide are divided into 2 times and add Enter in 20 side's recovered waters, add 100 kilograms of sodium carbonate, 50 kilograms of sodium hydroxide every time, between the 1st time and the 2nd time, interval 4 is little When, and be stirred continuously 8 hours, then standing sedimentation 24 hours, its clean recovered water is in light blue transparence, and floating has thin in a large number Broken floccule, content of impurities is more than 20mg/L hence it is evident that 200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide are disposably added by ratio Enter the clean Produced Wastewater Quality obtaining in 20 side's recovered waters poor；Therefore, sodium carbonate, sodium hydroxide are divided 2 times and add in recovered water Standing sedimentation effect is not so good as sodium carbonate, sodium hydroxide disposably add the standing sedimentation effect in recovered water.

The field test in east victory gas field further demonstrates that：First 200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide are added 50 In the uncovered side's tank in side, then wash away the alkali of addition with 20 side's recovered waters, and be stirred continuously 8 hours, then standing sedimentation 24 hours, Its clean recovered water water white transparency, does not have floccule, and content of impurities is less than 1mg/L；And first 20 side's recovered waters are added 50 In the uncovered side's tank in side, then again 200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide are added in 50 sides uncovered side tank, and constantly stir Mix 8 hours, then standing sedimentation 24 hours, its clean recovered water is in light blue transparence, floating has floccule in small, broken bits in a large number, machine Tool impurity content is more than 20mg/L；Therefore, first sodium carbonate, sodium hydroxide are added in uncovered side's tank, then recovered water is added spacious Standing sedimentation effect in mouth side's tank, is much better than first to add recovered water in uncovered side's tank, again by sodium carbonate, sodium hydroxide addition Standing sedimentation effect in uncovered side's tank.

The field test in east victory gas field shows：Precipitate 2～20 side being deposited in before this in 50 sides uncovered side tank continues It is retained in uncovered side's tank and does not clear, then 20 side's recovered waters are added in 50 sides uncovered side tank and mix with precipitate Close, then add 200 kilograms of sodium carbonate, 100 kilograms of sodium hydroxide in 50 sides uncovered side tanks again, and be stirred continuously 8 hours, so Standing sedimentation 24 hours afterwards, its clean recovered water is in colorless and transparent, does not have floccule, and content of impurities is less than 1mg/L；Cause This, under equal conditions, when precipitate before this is remained in 50 sides uncovered side tank, this precipitate being capable of efficient hardening hydrogen Sodium oxide, sodium carbonate purify the effect of recovered water.

The field test in east victory gas field further demonstrates that：1% sodium carbonate, 0.5% hydrogen is added eastwards in the recovered water of victory gas field Sodium oxide, produced air-dried sludge volume is less than the 2% of extraction water volume；1.5% is added to gather in the recovered water of victory gas field eastwards Close aluminum chloride flocculant, produced air-dried sludge volume is more than the 10% of extraction water volume；Eastwards in the recovered water of victory gas field Add 1.4% flocculant of polymeric aluminium chloride and 0.1% PAMC organic flocculant, produced air-dried mud Volume is more than the 8% of extraction water volume；0.5% flocculant of polymeric aluminium chloride, 0.5% hydrogen is added eastwards in the recovered water of victory gas field Sodium oxide, 0.5% sodium carbonate, produced air-dried sludge volume is more than the 10% of extraction water volume；Victory gas field extraction eastwards 1% flocculant of polymeric aluminium chloride, 0.2% sodium hydroxide, 0.3% sodium carbonate is added, produced air-dried sludge volume is in water More than the 10% of extraction water volume；Add in victory gas field recovered water eastwards 1% sodium carbonate, 0.4% sodium hydroxide, 0.1% sun from Sub- polyacrylamide organic flocculant, produced air-dried sludge volume is more than the 10% of extraction water volume；Therefore, east victory gas When field recovered water adds flocculant pretreatment, its sludge yield be only add a sodium carbonate, 4～5 times of sodium hydroxide.

The field test in east victory gas field further demonstrates that：When only victory gas field recovered water adds sodium carbonate, sodium hydroxide eastwards, produce Raw precipitate is that mud degree of compaction is high, relies on gravity dehydration fast on layer of sand, can form moisture content and be less than 50% in 2 days Dewatered sludge；After victory gas field recovered water adds aluminium polychlorid or/and organic flocculant eastwards, regardless of whether addition sodium carbonate, Sodium hydroxide, the precipitate being generated is very loose, relies on gravity dehydration speed extremely slow on layer of sand, aqueous after mummification 2 days Rate is still more than 80%.

The field test in east victory gas field further demonstrates that：Only add in victory gas field recovered water eastwards 1% sodium carbonate, 0.5% Sodium hydroxide, is added without flocculant, corrosion inhibiter, antisludging agent, antibacterial, the clean recovered water reverse osmosiss being formed after staticly settling Membrance concentration, after reverse osmosis membrane continuously runs 2 months, film surface observation is less than significant pollution, scale formation it is not necessary to chemistry is clear Wash or pickling.

From knowledge known in this field：Floccule can be formed after light oil, emulsifying hydrocarbon and flocculant effect.

Embodiment 27

With embodiment 12,15,18-21, it the difference is that only, further, in order to improve the efficiency of desalting plant, First with acid, the pH value of clean recovered water is adjusted to 7～9, then with desalination method, moisture is isolated from clean recovered water again Come.

Described acid is any one or arbitrarily two or more arbitrary proportions that chemical reaction does not occur of mineral acid, organic acid Mixture.

Specifically, described acid be hydrochloric acid, formic acid, acetic acid any one or do not occur any two kinds of chemical reaction with The mixture of upper arbitrary proportion.

Embodiment 28

Embodiment 29

Embodiment 30

A kind of gas field of present invention recovered water method for innocent treatment, comprises the steps：

Embodiment 31

With embodiment 30, difference is：

Step 2) in, gas field produced-water reinjection stratum will be concentrated.

Embodiment 32

With embodiment 30, difference is：

Step 2) in, with the arbitrarily united method evaporation of any one or its of heating evaporation method, ventilation method of evaporating Concentrate the moisture of gas field recovered water, so that it is innoxious to concentrate gas field recovered water.

Preferably, described filler device includes vertical rod and filler bundle, and described filler is strip or lumps, and described vertical rod is Shaft or ropy or filament, described filler one end is directly anchored in vertical rod.

From knowledge：Natural fiber such as batten, cotton, fiber crops, silkworm silk etc., facile hydrolysiss in the basic conditions；By east Victory gas field field test understands, after east victory gas field recovered water adds alkaline matter, its pH value is up to 14.

Experiment shows：Cortex Salicis Cheilophilae bar (plant bar), brick and tile, plaster strip, domestic mophead, plastic strip, space wadding, sponge, change Learning fiber, chemical fibre cloth, chemical fibre blanket, wool felt (including animal woollen blanket), phragmites communiss seat etc. can increase air and recovered water Contact area, the disengagement area of recovered water can be increased；But, it is experimentally confirmed, recovered water can be made using Cortex Salicis Cheilophilae bar Variable color, after especially making to add alkali, the recovered water in alkalescence becomes black, therefore uses Cortex Salicis Cheilophilae bar (plant bar) to increase air and extraction The method of ventilation practicality extreme difference that water engaging surface amasss；The ratio of brick and tile, the surface area of plaster strip and its weight is too little, if will reach Extremely huge to the weight of 100,000 per square meter of surface area (i.e. the contact area of ventilation disengagement area or air and recovered water), therefore With the method for ventilation practicality of brick and tile increase air and recovered water contact area, economy extreme difference；Cotton strap, phragmites communiss seat, Pilus Caprae seu Oviss Felt (including animal woollen blanket) test proves that, life-time service is perishable, therefore practicality extreme difference；Sponge, plastic strip do not absorb water, The contact area of air and recovered water can not be effectively increased；Domestic mophead, space wadding, sponge, chemical fibre, chemical fibre cloth, Chemical fibre blanket, glass fabric all can be significantly increased the contact area of air and recovered water, can reach 100,000 square metres of surfaces The weight of long-pending (i.e. the contact area of ventilation disengagement area or air and recovered water) less than 1 ton, therefore use mophead, space wadding, It is real with the method for ventilation of extraction water engaging surface that sponge, chemical fibre, chemical fibre cloth, chemical fibre blanket, glass fabric increase air Excellent with property, economy.

The field test in east victory gas field shows：With Cortex Salicis Cheilophilae bar, brick and tile, commercially available domestic mophead as enhanced natural ventilating side During the filler of method, all the moisture concentrating in the recovered water of gas field all can be evaporated clean, remaining residue on evaporation is cleaning Salt crystalloid.With Cortex Salicis Cheilophilae bar as enhanced natural ventilating method filler when, its to concentrate recovered water intensified ventilation evaporation Speed is natural ventilating method, more than 4 times of method of ventilation evaporation rate of exposing to the weather, but exist lead to recovered water blackening Defect, even if only become brownish black using alkaline extracted water on the 3rd；With brick and tile as enhanced natural ventilating method filler when, its To concentrate recovered water intensified ventilation evaporation rate be natural ventilating method, 4 times of method of ventilation evaporation rate of exposing to the weather with On, but have that weight is big, the defect of installation difficulty；The commercially available domestic mophead made with chemical fibre is as enhanced natural ventilating side During the filler of method, its to concentrate recovered water intensified ventilation evaporation rate be natural ventilating method, method of ventilation of exposing to the weather steam Send out speed more than 30 times, did not continuously have significant changes, damage using 1 year, the effect of enhanced water evaporation is extremely notable.

The field test in east victory gas field further demonstrates that：Using method of ventilation evaporation and concentration gas field recovered water moisture when, Whole process does not all need to add antibacterial, corrosion inhibiter, antisludging agent；Evaporation tank is the square open tank of steel, inwall asphalt mixtures modified by epoxy resin Do not need after fat anticorrosive paint is anti-corrosion to add corrosion inhibiter, continuous evaporation does not observe significant corrosion phenomenon, fouling thickness after 1 year Less than 0.5mm, do not affect being continuing with of evaporation tank；Filler surface institute salt crust is brilliant can be produced water dissolution by follow-up concentration, It is continuous that using not observing after 1 year, significant water-insoluble crystallizes or dirt is brilliant.

Calculated further by the result of east victory gas field field test and show：1 ton of east victory gas field re-injection concentrates the comprehensive of recovered water Synthesize this about 20-100 yuan/ton；Whole moisture comprehensive utilization steaming further with intensified ventilation evaporation and concentration gas field recovered water Send out residue, about 2 yuan/ton of the integrated cost of salt；Only has re-injection with the integrated cost of intensified ventilation evaporation and concentration gas field recovered water The 2-10% of stratum cost, remarkable in economical benefits.

Calculated from knowledge known in this field：1 ton of recovered water of heating evaporation or concentration recovered water need to consume coal 150kg/ ton；, winter has the temperature on average of 100 days to be less than -25 DEG C, and ventilation evaporation capacity is less, daily taking DaNiuDi gas field as a example Recovered water yield 1200 sides/day, 100 days total output recovered water 120,000 sides, -10 DEG C of the average freezing point of recovered water；If whole use Heating means evaporation needs to consume 1.8 ten thousand tons of coal；If stored, the re-evaporation when temperature is higher than 5 DEG C, need to build Make the water pond of 20,000 sides, need large amounts of protection in winter insulation, heating and thermal insulation expense；Therefore, with desalination method, recovered water is dense Store again after reduction 30%, evaporation of divulging information again when temperature is higher than 5 DEG C, will reduce by 30% protection in winter Thermal insulation Expense and deposit Pond construction cost, remarkable in economical benefits.

From knowledge known in this field：Steel evaporation tank is uncovered side's tank, can use various interior anti-corrosion measures, be not required to Want anti-scaling measures and sterilization measure, do not affect it after tank skin fouling and normally use；The brilliant surface area of dirt is equally huge, therefore filler Do not affect it after upper fouling normally to use；Do not use antibacterial, corrosion inhibiter, antisludging agent, extraction evaporation of water can be greatly reduced Cost and expense；Domestic at present do not use desalination method and method of ventilation, heating means arbitrarily united method that gas field is produced Water carries out the open source literature of harmless treatment or successful precedent, does not also use the arbitrarily united method of method of ventilation, heating means Carry out the open source literature of harmless treatment or successful precedent to the gas field recovered water that concentrates of desalination method decrement.

Embodiment 33

With embodiment 32, difference is：

Shown in Figure 4, described filler device includes vertical rod 401, filler 402 and bracket 403；Described filler 402 is bar Shape or lumps, described vertical rod 401 is shaft or ropy or filament, and described bracket 403 is fixed in vertical rod 401, institute State filler 402 one end to be fixed on bracket 403.When spraying Water spray, filler 402 is filled water and so that water is dripped；When wind to During filler 402, air is contacted with the water on filler 402, greatly increases contact area and the disengagement area of Air-Water.

Or shown in Figure 5, described filler device includes vertical rod 501 and filler 502, described filler 502 be strip or Lumps, described vertical rod is shaft or ropy or filament, and described filler 502 one end is directly anchored in vertical rod 501.When During spray Water spray, filler 502 is filled water and so that water is dripped；When wind is to filler 502, air is connect with the water on filler 502 Touch, greatly increase contact area and the disengagement area of Air-Water.

Embodiment 33

With embodiment 30, difference is：

Step 2) in, reclaim utility and/or additional chemical agent the recovered water of gas field from concentrating.

Embodiment 34

With embodiment 30, difference is：

In order to from concentrating recovery utility and/or additional chemical agent in the recovered water of gas field, first use heating evaporation method, lead to Any one in wind method of evaporating or its arbitrarily united method, the moisture of evaporation and concentration gas field recovered water, allow and concentrate gas field Recovered water concentrates further becomes solid content or salt eutectic substance and saline solution；Then by saline solution, solid content or salt crystalline substance thing Matter separates, and is separately recovered using as the raw material of industry or further harmless treatment.

Embodiment 35

With embodiment 30, difference is：

In order that it is innoxious more thorough to concentrate gas field recovered water, first use method of ventilation, heating means any one or its Anticipate the moisture of united method evaporation and concentration gas field recovered water, then again the residue remaining after transpiring moisture or/and residual liquid are entered One step harmless treatment or be used for produces the raw material of industry as producing industrial salt, alkali etc..

Embodiment 36

With embodiment 30, difference is：

In order to more thoroughly remove incrustation ion and sour gas, the residual hydrocarbons such as the calcium and magnesium concentrating in the recovered water of gas field, first To concentrating, any one or its adding alkaline matter or hydrophosphate, dihydric phosphate in gas field recovered water is arbitrarily two or more The mixture of arbitrary proportion mixing is so as to form water-fast sinking with incrustation ions such as the calcium concentrating in gas field sewage, magnesium, ferrum Starch, then precipitate is separated from the recovered water of concentration gas field；Then again use method of ventilation, heating means any one or The moisture of its any united method evaporation and concentration gas field recovered water.

Embodiment 37

With embodiment 30, difference is：

Step 2) in, in order to from containing suppression ice agent concentration gas field recovered water in recycle suppression ice agent, first use method of ventilation, The moisture of any one or its of heating means arbitrarily united method evaporation and concentration gas field recovered water, will concentrate gas field recovered water It is condensed into the suppression suppression ice agent liquid more than 5% for the ice agent content；Then ice agent liquids recovery will be pressed down using as the raw material of industry, water Compound inhibitors.

Then by the suppression suppression ice agent liquid organic acid more than 5% for the ice agent content or/and mineral acid adjustment pH value to 6～ 10, to make it meet the use requirement of hydrate inhibitor.

It is arbitrarily two or more arbitrarily that described organic acid includes formic acid, acetic acid, dehydroactic acid, any one or its in lactic acid The mixture of ratio；Described mineral acid includes the mixing of any one or its arbitrarily two or more arbitrary proportion of hydrochloric acid, sulphuric acid Thing.

Embodiment 38

With embodiment 30, difference is：

In order to recycle suppression ice agent and mineral from the concentration gas field recovered water containing suppression ice agent, first use method of ventilation, The moisture of heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, enters concentrating gas field recovered water One step is condensed into the suppression ice agent and content of mineral substances concentrated solution more than 5%；Then concentrated solution is recycled as industrial former Material.

Then the concentrated solution organic acid that ice agent and content of mineral substances content are more than 5% or/and mineral acid adjustment PH will be pressed down It is worth to 6～10, to make it meet the use requirement of hydrate inhibitor.

Or, concentrated solution is used for producing feed additive, chemical fertilizer or acylate, inorganic acid salt, inorganic base, organic Acid, the mixture of any one or any two or more arbitrary proportion mixing of mineral acid.

Or, concentrated solution is used for producing solid-state suppression ice agent, the solidliquid mixture of suppression ice agent and solid fossil matter etc..

Or, with the moisture in the arbitrarily united method evaporation concentrated solution of method of ventilation, heating means any one or its, Produce solid-state and press down ice agent, the solidliquid mixture of suppression ice agent and solid fossil matter etc..

Described mineral refers to water-soluble minerals.

Embodiment 39

With embodiment 30, difference is：

In order to recycle the water-soluble polymer concentrating in the recovered water of gas field, first use method of ventilation, heating means any A kind of moisture of or its any united method evaporation and concentration gas field recovered water, makes concentration gas field recovered water be separated into top polymerization Thing aqueous layer and bottom concentration gas field recovered water layer；Then it is separated into aqueous solutions of polymers again and concentrate gas field extraction Water；Then again aqueous solutions of polymers is recycled.

Or, be first precipitated as supernatant and precipitate by concentrating gas field recovered water, precipitate is comprehensively utilized further or Innoxious such as it is cured as building block；Then use the arbitrarily united method evaporation of method of ventilation, heating means any one or its dense again The moisture of contracting gas field recovered water, makes concentration gas field recovered water be separated into top aqueous solutions of polymers layer and the extraction of bottom concentration gas field Water layer；Then it is separated into aqueous solutions of polymers again and concentrate gas field recovered water；Then again aqueous solutions of polymers is reclaimed profit With.

Then gas field recovered water will be concentrated comprehensively utilize further or innoxious.

Then the polymer water isolated with the arbitrarily united method evaporation of method of ventilation, heating means any one or its Solution moisture content testing, to recycle water soluble polymer.

Then the concentration gas field isolated with the arbitrarily united method evaporation of method of ventilation, heating means any one or its Recovered water moisture, to recycle its contained utility as pressed down ice agent, mineral etc..

Embodiment 40

With embodiment 30, difference is：

In order to from concentrating, recovery in the recovered water of gas field is more to press down ice agent or suppression ice agent liquid, first to concentration gas field recovered water The middle any one or any two or more mixture adding in formic acid, acetic acid, dehydroactic acid, lactic acid, then again with ventilation The moisture of method, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water.

Or, first use the arbitrarily united method evaporation and concentration gas field extraction of method of ventilation, heating means any one or its The moisture of water, is condensed into suppression ice agent liquid and solid content (as salt is brilliant) by concentrating gas field recovered water；Then again to suppression ice agent liquid With any one or any two or more the mixing adding in solid content (as salt is brilliant) in formic acid, acetic acid, dehydroactic acid, lactic acid Close.

Embodiment 41

With embodiment 30, difference is：

In order to reclaim more suppression ice agent from the recovered water of concentration gas field, first in the recovered water of concentration gas field, add water solublity Mineral acid (example hydrochloric acid, sulphuric acid), then uses the arbitrarily united method evaporation of method of ventilation, heating means any one or its dense again The moisture of contracting gas field recovered water.

Embodiment 42

With embodiment 30, difference is：

In order to recycle the functional chemical agent concentrating in the recovered water of gas field, first use method of ventilation, heating means any A kind of moisture of or its any united method evaporation and concentration gas field recovered water, makes concentration gas field recovered water be separated into top function Property chemical oxidant layer and bottom concentration gas field recovered water layer；Then it is separated into functional chemical agent again and concentrate gas field extraction Water；Then again functional chemical agent is recycled；Gas field recovered water will be concentrated again comprehensively utilize further or harmless treatment.

Or, first use the arbitrarily united method evaporation and concentration gas field extraction of method of ventilation, heating means any one or its The moisture of water, makes concentration gas field recovered water be separated into top foaming water discharge oxidant layer and bottom concentration gas field recovered water layer；Then again It is separated into foaming water discharge agent and concentrate gas field recovered water；Then again foaming water discharge agent is recycled；Gas field will be concentrated again Recovered water comprehensively utilizes or harmless treatment further.

Or, first use the arbitrarily united method evaporation and concentration gas field extraction of method of ventilation, heating means any one or its The moisture of water, makes concentration gas field recovered water be separated into top inhibition oxidant layer and bottom concentration gas field recovered water layer；Then again by it It is separated into corrosion inhibiter and concentrate gas field recovered water；Then again corrosion inhibiter is recycled；Gas field recovered water will be concentrated again further Comprehensive utilization or harmless treatment.

Or, first use the arbitrarily united method evaporation and concentration gas field extraction of method of ventilation, heating means any one or its The moisture of water, makes concentration gas field recovered water be separated into top scale inhibition oxidant layer and bottom concentration gas field recovered water layer；Then again by it It is separated into antisludging agent and concentrate gas field recovered water；Then again antisludging agent is recycled；Gas field recovered water will be concentrated again further Comprehensive utilization or harmless treatment are processed.

Embodiment 43

Embodiment 44

With embodiment 43, difference is：

Embodiment 45

With embodiment 43, difference is：Described method of ventilation refers to using ultrasonic atomization method, shower nozzle spraying square The method of any one or its combination in any of method increases air and the contact area of water and the method for ventilation of disengagement area.

Embodiment 46

With embodiment 43, difference is：Described ventilation method of evaporating refers to hot blast method of evaporating.

Preferably, described spray drying process refers to any one or its of ultrasonic atomization method, shower nozzle spray method The method of combination in any.

Embodiment 47

Repeat embodiment 43, its difference is：

In order to remove the mechanical admixture in the recovered water of gas field, emulsifying hydrocarbon or/and dissolved hydrocarbon, first add in the recovered water of gas field Inorganic flocculating agent or/and organic flocculant so as to gas field recovered water in mechanical admixture, emulsifying hydrocarbon or/and dissolved hydrocarbon formed Floccule；Then with existing method, floccule is separated from recovered water, form clean recovered water；Then use ventilation side again The moisture of the clean recovered water of method evaporation, so that gas field recovered water is innoxious.

Embodiment 48

Repeat embodiment 43, its difference is：

In order to remove incrustation ion, emulsifying hydrocarbon or/and the dissolved hydrocarbons such as the Ca, Mg and Fe in the recovered water of gas field, prevent ventilation evaporation When the sour gas atmosphere pollution such as hydrogen sulfide and carbon dioxide, first add in the recovered water of gas field alkaline matter or hydrophosphate, The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate is so as to react with gas field recovered water Become suspension or troubled liquor；Then with existing method, suspension or troubled liquor are separated into solid content and clean recovered water； Then evaporate the moisture of clean recovered water again with method of ventilation, so that gas field recovered water is innoxious.

Embodiment 49

Repeat embodiment 43-48, its difference is：

In order to slow down the hydrolysis rate of filler, first with acid or/and sour gas, the pH value of gas field recovered water is adjusted to 6.5 ～8.5；Then the moisture of gas field recovered water is evaporated again with ventilation method of evaporating.

Embodiment 50

Repeat embodiment 43-49, its difference is：

In order that gas field recovered water is innoxious, first evaporate the moisture of gas field recovered water with method of ventilation, formed and concentrate gas field Recovered water；Then gas field recovered water will be concentrated as inhibitor, for preventing and treating gas hydrates or anti-for natural gas runner Freeze de-plugging.

Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right The restriction of embodiments of the present invention, for those of ordinary skill in the field, also may be used on the basis of the above description To make other changes in different forms, all of embodiment cannot be exhaustive here, every belong to this Obvious change that bright technical scheme is extended out or change the row still in protection scope of the present invention.

Claims

1. a kind of gas field recovered water decrement treatment method it is characterised in that：With desalination method, moisture is divided from the recovered water of gas field Separate out, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

2. gas field according to claim 1 recovered water decrement treatment method it is characterised in that：Separate from the recovered water of gas field Contained by moisture out, the concentration of water-soluble substanceses should be able to meet plant normal growth and require, or/and meets constitutional law law The discharge standard of rule regulation.

3. gas field according to claim 1 recovered water decrement treatment method it is characterised in that：Described desalination method refer to by Method or/and process that the low water of solutes content is separated from the high water of solutes content, or by salt or/and content of mineral substances Method or/and process that low water is separated from the high water of salt or/and content of mineral substances.

4. the gas field recovered water decrement treatment method according to claim 1,3 it is characterised in that：Described desalination method refers to Method for desalting seawater.

5. gas field according to claim 4 recovered water decrement treatment method it is characterised in that：Described method for desalting seawater is The method producing fresh water using seawater desalination.

6. gas field according to claim 3 recovered water decrement treatment method it is characterised in that：Described desalination method includes cold Jelly method, freezing process, efficient embrane method, electroosmose process, the way of distillation, downward penetration, semi-transparent embrane method, hyperfiltration, ultrafiltration, microfiltration Method, ion exchange, ion-exchange resin, cryogenic distillation process, solar energy method, flash method, Membrane Materials desalination process, negative pressure evaporation Method, adsorption desalination method, dew point evaporation, spray evaporation method, vacuum-freezing process, water-electricity cogeneration method, hotting mask co-production method any one Plant or two or more arbitrarily united method.

7. gas field according to claim 3 recovered water decrement treatment method it is characterised in that：Described desalination method includes cold Jelly method, freezing process, efficient embrane method, electroosmose process, the way of distillation, downward penetration, semi-transparent embrane method, hyperfiltration, ultrafiltration, microfiltration Method, ion exchange, ion-exchange resin, cryogenic distillation process, solar energy method, flash method, Membrane Materials desalination process, negative pressure evaporation Method, adsorption desalination method, dew point evaporation, spray evaporation method, vacuum-freezing process, water-electricity cogeneration method, hotting mask co-production method any one The method planting arbitrarily series connection or/and parallel connection.

8. the gas field recovered water decrement treatment method according to claim 1,3-4,5-7 it is characterised in that：Desalination method profit With nuclear energy, solar energy, wind energy, tide energy any one or two or more arbitrarily united method be desalinating process, device or Facility provides power or/and pressure.

9. gas field according to claim 1 recovered water decrement treatment method it is characterised in that：Described gas field recovered water contains Methanol and do not contain inhibitor or contain inhibitor and do not contain methanol or contain methanol and inhibitor or do not contain methanol and do not contain simultaneously Inhibitor.

10. gas field according to claim 1 recovered water decrement treatment method it is characterised in that：Described gas field recovered water is Refer to produce in recovered water, coal bed gas or/and the coal-formed gas exploitation production process producing in natural gas extraction or production process of natural gas The recovered water of life, shale gas or/and mud stone gas exploit the recovered water producing in production process, oil field gas well or associated natural gas life The recovered water producing during product, the recovered water producing during gas hydrates ore deposit Development and Production, gas condensate field exploitation or Any one of the recovered water producing in production process.

11. gas field according to claim 10 recovered water decrement treatment methods it is characterised in that：Described gas hydrates Ore deposit refers to that the initial condition of contained natural gas or/and hydrocarbon is gas hydrates.

12. gas field according to claim 10 recovered water decrement treatment methods it is characterised in that：Described gas condensate field refers to The light oil of the natural gas well or liquid hydrocarbon yield are more than 0.2m³The gas field of/day.

13. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to recovered water, natural gas surface production that the recovered water, natural gas purification processing factory that gas gathering station or/and measuring station produce produce or The mixture of any one or any two or more arbitrary proportions in the recovered water that accumulating website produces.

14. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is The extraction that any one production link in finger natural gas extraction or production process of natural gas, production equipment, production technology produce Water.

15. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to any two in natural gas extraction or production process of natural gas or two or more production link, production equipment, production technology The mixture of produced recovered water arbitrary proportion.

16. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to recovered water that separate from natural gas runner or that natural gas runner produces.

17. gas field according to claim 16 recovered water decrement treatment methods it is characterised in that：Described natural gas runner bag Include the natural gas flows such as the natural gas well, pit shaft, well head, valve, effusion meter, restricting element, pipe fitting, separator, pipeline through passage Any one or any two or more.

18. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water contains There are liquid hydrocarbon or/and emulsifying hydrocarbon.

19. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to by the liquid hydrocarbon isolated in natural gas runner or/and emulsifying hydrocarbon with separate the aqueous water being formed in the mixture of water further Or recovered water.

20. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to aqueous water or the recovered water being further separated out in the emulsifying hydrocarbon isolated from natural gas runner.

21. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Refer to the subsoil water essentially from oil reservoir or oil-gas Layer of Oil/gas Well institute output；Described Oil/gas Well refers to also give birth to while producing crude oil Producing natural gas or the oil well of associated gas, or refer to while producing natural gas, also produce the natural gas of light crude oil or condensate Well.

22. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Described gas field recovered water is Vaporous water, aqueous water or solid water.

23. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：Divide from the recovered water of gas field Separate out any one or any two or more any ratio that the moisture coming is aqueous water, solid water or ice, vaporous water or water vapour The mixture of example.

24. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas gathering station Nearby, in well site, any one place neighbouring, in purification plant or near purification plant in well site or any more than 2 places, with light Moisture is separated from the recovered water of gas field by change method, is formed and concentrates gas field recovered water, to reduce the volume of gas field recovered water.

25. gas field recovered water decrement treatment methods according to claim 1,24 it is characterised in that：First in gas gathering station, Gas gathering station nearby, in well site, well site is neighbouring, any one place in purification plant or near purification plant or any 2 with Shangdi Moisture is separated from the recovered water of gas field by point with desalination method, is formed and concentrates gas field recovered water；Then gas field will be concentrated again Recovered water delivers to another one or multiple place or website.

26. gas field recovered water decrement treatment methods according to claim 1,24-25 it is characterised in that：First in gas gathering station Interior, gas gathering station nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Moisture is separated from the recovered water of gas field by upper place with desalination method, is formed and concentrates gas field recovered water；Then will concentrate again Gas field recovered water delivers to another one or multiple place or website；Then again with desalination method by moisture from concentrating gas field recovered water In separate, with reduce further gas field extraction water volume.

27. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：With the desalination of sour routine cleaning The device that method uses.

28. gas field according to claim 27 recovered water decrement treatment methods it is characterised in that：Described acid be mineral acid, Organic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

29. gas field recovered water decrement treatment methods according to claim 27,28 it is characterised in that：Described acid be hydrochloric acid, Formic acid, acetic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

30. gas field according to claim 27 recovered water decrement treatment methods it is characterised in that：With the desalination of sour routine cleaning After the device that method uses then with the mixture of any one or any two or more arbitrary proportions of alkaline matter, pickling is residual Liquid is neutralized to pH value 7～9, then mixes it with recovered water.

31. gas field according to claim 27 recovered water decrement treatment methods it is characterised in that：With the desalination of sour routine cleaning After the device that method uses, then pickling residual liquid is mixed with recovered water.

32. gas field according to claim 27 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Point, the device being used with sour routine cleaning desalination method.

33. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add acid to adjust extraction water ph value to less than 5, then with desalination method, moisture is separated from the recovered water of gas field again.

34. gas field according to claim 33 recovered water decrement treatment methods it is characterised in that：Described acid be mineral acid, Organic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

35. gas field according to claim 34 recovered water decrement treatment methods it is characterised in that：Described acid is hydrochloric acid, first Acid, acetic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

36. gas field according to claim 33 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first adds acid to adjust extraction water ph value to less than 5 in the recovered water of gas field, then again with desalination method by moisture from gas field Separate in recovered water.

37. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First use gravity filter device Filter the impurity in the recovered water of gas field, then with desalination method, moisture is separated from the recovered water of gas field again.

38. gas field recovered water decrement treatment methods according to claim 37 it is characterised in that：Described gravity filter device It is uncovered or open to atmosphere natural filtration device, or rely on liquid self gravitation to pass through the defecator of filter layer or filtrate.

39. gas field recovered water decrement treatment methods according to claim 37 it is characterised in that：Described gravity filter device Including the container casing remained silent and the filter layer being arranged on bottom in container casing；Described container casing bottom or bottom are provided with out The mouth of a river, the top of container casing arranges backwash outlet and water inlet from top to bottom, and the top of container casing is provided with blow vent.

40. gas field recovered water decrement treatment methods according to claim 37 it is characterised in that：Described gravity filter device Including uncovered container casing and the filter layer being arranged on bottom in container casing；Described container casing bottom or bottom are provided with out The mouth of a river, the top of container casing arranges backwash outlet and water inlet from top to bottom.

41. gas field recovered water decrement treatment methods according to claim 37 it is characterised in that：Described gravity filter device Including uncovered container casing and the filter layer being arranged on bottom in container casing；Described container casing bottom or bottom are provided with out The mouth of a river.

42. gas field recovered water decrement treatment methods according to claim 38 or 39-41 it is characterised in that：Described filtration Layer is plant granule, Plant fiber, chemical fibre, staple fibre, chemical fibre blanket, chemical fabric, animal fiber, mineral grain, ore deposit The mixture of any one or any two or more arbitrary proportions in fibres, plant sintered particles, carbon fibre.

43. gas field according to claim 42 recovered water decrement treatment methods it is characterised in that：Described mineral grain refers to Sand, sand, smokeless coal particle, bituminous coal granule, haydite, floating bead, brick and tile granule in small, broken bits, perlite, kieselguhr, Muscovitum, finely crushed glass In granule, concrete particle in small, broken bits, gypsum particle, rock particles in small, broken bits, soil sintered particles any one or any two kinds with The mixture of upper arbitrary proportion.

44. gas field recovered water decrement treatment methods according to claim 37 it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first filters the impurity in gas field recovered water with gravity filter device, then again with desalination method by moisture from gas field recovered water In separate.

45. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First will be quiet for gas field recovered water Put, make the contamination precipitation in the recovered water of gas field, form clean recovered water；Then again with desalination method by moisture from clean recovered water In separate.

46. gas field according to claim 45 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Gas field recovered water is first stood by point, makes the contamination precipitation in recovered water, forms clean recovered water；Then again will with desalination method Moisture is separated from clean recovered water.

47. gas field recovered water decrement treatment methods according to claim 45,46 it is characterised in that：Will with existing method The impurity of precipitation is separated or is processed further.

48. gas field according to claim 47 recovered water decrement treatment methods it is characterised in that：Described existing method refers to Solid- liquid separation, cyclonic separation, centrifugation, filtration, pressurized tank filtration, gravity filter device filtration, pressure filter filter pressing, addition Any one or any two or more arbitrarily united method of inorganic flocculating agent, addition high polymer coagulant or/and flocculation aid.

49. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First by light oil and/or breast Change hydrocarbon to separate from the recovered water of gas field；Then with desalination method, moisture is separated from the recovered water of gas field again, formed Concentrate gas field recovered water.

50. gas field according to claim 49 recovered water decrement treatment methods it is characterised in that：First by light oil and/or Emulsifying hydrocarbon is separated from the recovered water of gas field, then emulsifying hydrocarbon is further separated into light oil and water；Then use desalination side again Moisture is separated from the recovered water of gas field by method, is formed and concentrates gas field recovered water.

51. gas field according to claim 49 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Light oil and/or emulsifying hydrocarbon are first separated from the recovered water of gas field by point；Then with desalination method, moisture is adopted from gas field again Separate in water outlet, formed and concentrate gas field recovered water.

52. gas field according to claim 49 recovered water decrement treatment methods it is characterised in that：With heating, breakdown of emulsion, quiet Put, air supporting, catalysis oxidation, biological oxidation, the method for any one or two or more combination in any of ionization make light oil and/or Emulsifying hydrocarbon is separated from the recovered water of gas field；Then with desalination method, moisture is separated from the recovered water of gas field again, shape Become to concentrate gas field recovered water.

53. gas field recovered water decrement treatment methods according to claim 51 or 52 it is characterised in that：In gas gathering station, Gas gathering station nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Upper place, with heating, breakdown of emulsion, standing, air supporting, catalysis oxidation, biological oxidation, ionization any one or two or more any group The method closed makes light oil and/or emulsifying hydrocarbon separate from the recovered water of gas field；Then again with desalination method by moisture from gas Separate in the recovered water of field, formed and concentrate gas field recovered water.

54. gas field recovered water decrement treatment methods according to claim 52 or 53 it is characterised in that：Described heating includes Environment heating means, fuel heating means, electrical heating method, waste-heat method, waste heat method, solar energy heating method In being used in combination of any one or any two or more heating means.

55. gas field according to claim 54 recovered water decrement treatment methods it is characterised in that：Described environment heating means It is to heat the appearance equipped with gas field recovered water with sunlight illuminating method, natural ventilating method, forced ventilation method, method of exposing to the weather Device.

56. gas field according to claim 54 recovered water decrement treatment methods it is characterised in that：Described solar energy heating side The method that method refers to directly or indirectly utilize solar energy or sunlight heats.

57. gas field recovered water decrement treatment methods according to claim 52 or 53 it is characterised in that：Described breaking method Including chemical demulsifying process, physics breaking method, any one or any two or more sides filtering breakdown of emulsion method, coalescing breakdown of emulsion method Being used in combination of method.

58. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First with energising oxidation, catalysis Oxidation, biological oxidation, ultrasonic oxidation, Corona Oxidation, the method for any one or two or more combination in any in ionization are by breast Change hydrocarbon or/and light oil oxidation Decomposition, then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate Gas field recovered water.

59. gas field according to claim 58 recovered water decrement treatment methods it is characterised in that：In gas gathering station, gas collection Stand nearby, any one place in well site, near well site, in purification plant or near purification plant or any 2 with Shangdi Point, with energising oxidation, catalysis oxidation, biological oxidation, ultrasonic oxidation, Corona Oxidation, any one or two or more that ionize The method of meaning combination is by emulsifying hydrocarbon or/and light oil oxidation Decomposition.

60. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method, suspension or troubled liquor are divided From one-tenth solid content and clean recovered water；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate Gas field recovered water, to reduce the volume of gas field recovered water.

61. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method by clean recovered water from suspension Or separate in troubled liquor；Then with desalination method, moisture is separated from clean recovered water again, form concentrated gas Field recovered water, to reduce the volume of gas field recovered water.

62. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form water-fast solid content；Again will with existing method Solid content is separated from recovered water, forms clean recovered water；Then again with desalination method by moisture from clean recovered water Separate, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

63. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or its any two kinds with The mixture of upper arbitrary proportion mixing is so as to react into suspension or troubled liquor with gas field recovered water；Then use existing method Suspension or troubled liquor are separated into solid content and clean recovered water；Then again with desalination method by moisture from clean recovered water In separate, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

64. gas field according to claim 63 recovered water decrement treatment methods it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or its any two kinds with The mixture of upper arbitrary proportion mixing is so as to react into suspension or troubled liquor with gas field recovered water；Then use existing method Clean recovered water is separated from suspension or troubled liquor；Then again with desalination method by moisture from clean recovered water Separate, formed and concentrate gas field recovered water, to reduce the volume of gas field recovered water.

65. gas field according to claim 63 recovered water decrement treatment methods it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or its any two kinds with The mixture of upper arbitrary proportion mixing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum formed water-fast solid Shape thing；With existing method, solid content is separated from recovered water again, form clean recovered water；Then again will with desalination method Moisture is separated from clean recovered water, is formed and concentrates gas field recovered water, to reduce the volume of gas field recovered water.

66. gas field recovered water decrement treatment methods according to claim 60,62-63,65 it is characterised in that：To separate The further harmless treatment of solid content going out or high-temperature roasting.

67. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First by light oil and/or Emulsifying hydrocarbon is separated from the recovered water of gas field；Alkaline matter or hydrophosphate, biphosphate is added again in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of salt is so as to react into suspension with gas field recovered water Or troubled liquor；Then with existing method, suspension or troubled liquor are separated into solid content and clean recovered water；Then use again Moisture is separated from clean recovered water by desalination method, is formed and concentrates gas field recovered water, to reduce the body of gas field recovered water Long-pending.

68. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First by light oil and/or Emulsifying hydrocarbon is separated from the recovered water of gas field；Alkaline matter or hydrophosphate, biphosphate is added again in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of salt is so as to react into suspension with gas field recovered water Or troubled liquor；Then with existing method, clean recovered water is separated from suspension or troubled liquor；Then again with light Moisture is separated from clean recovered water by change method, is formed and concentrates gas field recovered water, to reduce the volume of gas field recovered water.

69. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First by light oil and/or Emulsifying hydrocarbon is separated from the recovered water of gas field；Alkaline matter or hydrophosphate, biphosphate is added again in the recovered water of gas field The mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of salt so as to gas field recovered water in calcium, magnesium, ferrum Form water-fast solid content Deng incrustation ion；With existing method, solid content is separated from recovered water again, formed clean Net recovered water；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water, to contract Subtract the volume of gas field recovered water.

70. gas field recovered water decrement treatment methods according to claim 67-69 it is characterised in that：First gas field is produced Water and light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then by light oil and/or emulsifying hydrocarbon from the recovered water of gas field Separate.

71. gas field recovered water decrement treatment methods according to claim 67,69 it is characterised in that：By consolidating of isolating The further harmless treatment of shape thing or high-temperature roasting.

72. gas field recovered water decrement treatment methods according to claim 60-65,67-69 it is characterised in that：Described existing Have method refer to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation any one Plant or arbitrarily two or more arbitrarily united method.

73. gas field recovered water decrement treatment methods according to claim 60-65,67-69 it is characterised in that：Described existing Have method refer to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation any one The method planting series connection or/and parallel connection.

74. gas field recovered water decrement treatment methods according to claim 72 or 73 it is characterised in that：Described standing, heavy Shallow lake, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation refer to standing in open-top receptacle, heavy Shallow lake, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation.

75. gas field recovered water decrement treatment methods according to claim 72-74 it is characterised in that：Described gravity filtration Device refers to uncovered or open to atmosphere natural filtration device, also refers to the filtration relying on liquid self gravitation to pass through filter layer or filtrate Device.

76. gas field recovered water decrement treatment methods according to claim 75 it is characterised in that：Described gravity filter device Including uncovered container casing and the filter layer being arranged on bottom in container casing；Described container casing bottom or bottom are provided with out The mouth of a river.

77. gas field recovered water decrement treatment methods according to claim 60-65,67-69 it is characterised in that：Described existing Have method refer to filtration, pressure-filtering tank filtration, pressure filter filter pressing, add inorganic flocculating agent, add macromolecule organic flocculating agent or/and Any one or any two or more arbitrarily united method of flocculation aid.

78. gas field recovered water decrement treatment methods according to claim 60-65,67-69 it is characterised in that：Described existing Method is had to refer to filtration, pressure-filtering tank filtration, pressure filter filter pressing, add inorganic flocculating agent, macromolecule organic flocculating agent or/and help solidifying The method of any one of agent arbitrarily series connection or/and parallel connection.

79. gas field recovered water decrement treatment methods according to claim 60-65,67-69 it is characterised in that：Described existing Method is had to refer to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation, filtration, pressure Filter tank filtration, pressure filter filter pressing, add inorganic flocculating agent, add macromolecule organic flocculating agent or/and flocculation aid any one Or arbitrarily two or more arbitrarily united method.

80. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or troubled liquor；Then by suspension or Troubled liquor is placed in container；Then stand, make solid content be settled down to lower vessel portion, form clean recovered water in upper vessel portion； Then with desalination method, moisture is separated from clean recovered water again, formed in upper vessel portion and concentrate gas field recovered water；So Separate further harmless treatment by concentrating gas field recovered water in container afterwards；Then again the solid content in container is entered one Step harmless treatment or high-temperature roasting.

81. according to Claim 8 the gas field recovered water decrement treatment method described in 0 it is characterised in that：First by the solid in container Thing is separated, by further for solid content harmless treatment or high-temperature roasting；Then with desalination method, moisture is adopted from cleaning again Separate in water outlet, formed and concentrate gas field recovered water.

82. according to Claim 8 the gas field recovered water decrement treatment method described in 0 it is characterised in that：First by the solid in container Thing is separated, by further for solid content harmless treatment or high-temperature roasting；Then gas field recovered water will be concentrated again in container Separate further harmless treatment.

83. according to Claim 8 the gas field recovered water decrement treatment method described in 0 it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or its any two kinds with The mixture of upper arbitrary proportion mixing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or muddiness Liquid；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to lower vessel portion, in container Clean recovered water is formed at top.

84. according to Claim 8 the gas field recovered water decrement treatment method described in 0-83 it is characterised in that：First gas field is produced Water and light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then by light oil and/or emulsifying hydrocarbon from the recovered water of gas field Separate.

85. gas field according to claim 60 recovered water decrement treatment methods it is characterised in that：First in the recovered water of gas field Add the mixing of any one or its arbitrarily two or more arbitrary proportions mixing of alkaline matter or hydrophosphate, dihydric phosphate Thing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or troubled liquor；Then by suspension or Troubled liquor is placed in container；Then stand, make solid content be settled down to lower vessel portion, form clean recovered water in upper vessel portion； Then clean gas field is produced in water from container and separate；Then with desalination method, moisture is separated from clean recovered water again Out, formed and concentrate gas field recovered water；Then again by further for the solid content in container harmless treatment or high-temperature roasting.

86. according to Claim 8 the gas field recovered water decrement treatment method described in 5 it is characterised in that：First by the solid in container Thing is separated, by further for solid content harmless treatment or high-temperature roasting；Then clean gas field is produced in water from container and divide Separate out；Then with desalination method, moisture is separated from clean recovered water again, formed and concentrate gas field recovered water.

87. according to Claim 8 the gas field recovered water decrement treatment method described in 5 it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first add in the recovered water of gas field alkaline matter or hydrophosphate, dihydric phosphate any one or its any two kinds with The mixture of upper arbitrary proportion mixing so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or muddiness Liquid；Then suspension or troubled liquor are placed in container；Then stand, make solid content be settled down to lower vessel portion, in container Clean recovered water is formed at top.

88. according to Claim 8 the gas field recovered water decrement treatment method described in 5-87 it is characterised in that：First by light oil and/ Or emulsifying hydrocarbon separates from the recovered water of gas field.

89. according to Claim 8 the gas field recovered water decrement treatment method described in 8 it is characterised in that：First by gas field recovered water and Light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field Out.

90. gas field recovered water decrement treatment methods according to claim 1,60 it is characterised in that：First by alkaline matter or Hydrophosphate, the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate add in container； Then again gas field recovered water is added in container, form suspension or troubled liquor；Then stand, form cleaning in upper vessel portion Recovered water；Then with desalination method, moisture is separated from clean recovered water again, form concentration gas field in upper vessel portion and adopt Water outlet.

91. gas field recovered water decrement treatment methods according to claim 90 it is characterised in that：First by clean recovered water from Separate in container；Then with desalination method, moisture is separated from clean recovered water again, form concentration gas field and adopt Water outlet.

92. gas field recovered water decrement treatment methods according to claim 90-91 it is characterised in that：First by alkaline matter Or the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of hydrophosphate, dihydric phosphate adds container In；Then again gas field recovered water is added in container, form suspension or troubled liquor；Then stand, formed in upper vessel portion Clean recovered water, forms solid content in lower vessel portion；Then separate in clean extraction water from container, by consolidating in container The further harmless treatment of shape thing or high-temperature roasting；Then with desalination method, moisture is separated from clean recovered water again, Formed and concentrate gas field recovered water.

93. gas field recovered water decrement treatment methods according to claim 90 it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first by alkaline matter or hydrophosphate, any one or its arbitrarily two or more arbitrary proportions mixing of dihydric phosphate Mixture adds in container；Then again gas field recovered water is added in container, form suspension or troubled liquor；Then stand, Form clean recovered water in upper vessel portion.

94. gas field recovered water decrement treatment methods according to claim 90,92-93 it is characterised in that：First by light oil And/or emulsifying hydrocarbon separates from the recovered water of gas field.

95. gas field recovered water decrement treatment methods according to claim 94 it is characterised in that：First by gas field recovered water and Light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field Out.

96. gas field recovered water decrement treatment methods according to claim 1,60 it is characterised in that：First by gas field recovered water Add in container；Again by any one or its arbitrarily two or more any ratio of alkaline matter or hydrophosphate, dihydric phosphate The mixture of example mixing adds in container, forms suspension or troubled liquor；Then stand, form clean extraction in upper vessel portion Water；Then with desalination method, moisture is separated from clean recovered water again, formed in upper vessel portion and concentrate gas field recovered water.

97. gas field recovered water decrement treatment methods according to claim 96 it is characterised in that：First by clean recovered water from Separate in container；Then with desalination method, moisture is separated from clean recovered water again, form concentration gas field and adopt Water outlet.

98. gas field recovered water decrement treatment methods according to claim 96-97 it is characterised in that：First gas field is produced Water adds in container；Again will be arbitrarily two or more arbitrarily to any one or its of alkaline matter or hydrophosphate, dihydric phosphate The mixture of ratio mixing adds in container, forms suspension or troubled liquor；Then stand, form cleaning in upper vessel portion and adopt Water outlet, forms solid content in lower vessel portion；Then separate in clean extraction water from container, the solid content in container is entered One step harmless treatment or high-temperature roasting；Then with desalination method, moisture is separated from clean recovered water again, formed dense Contracting gas field recovered water.

99. gas field recovered water decrement treatment methods according to claim 96 it is characterised in that：In gas gathering station or gas collection Stand nearby, any one place in well site or near well site, in purification plant or near purification plant or any 2 with Shangdi Point, first adds gas field recovered water in container；Again by any one or its of alkaline matter or hydrophosphate, dihydric phosphate Anticipate in the mixture addition container of two or more arbitrary proportion mixing, form suspension or troubled liquor；Then stand, in container Clean recovered water is formed at top.

100. gas field recovered water decrement treatment methods according to claim 96,98-99 it is characterised in that：First by lightweight Oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field.

101. gas field recovered water decrement treatment methods according to claim 100 it is characterised in that：First by gas field recovered water It is placed in standing in container with light oil and/or emulsifying hydrocarbon mixture, then light oil and/or emulsifying hydrocarbon are divided from the recovered water of gas field Separate out.

The 102. gas field recovered water decrements according to claim 60,62-63,65,67,69,80-83,85-87,92 or 98 Processing method it is characterised in that：Solid content is sent into mummifying pool or/and gravity filter device filters, is dehydrated, air-dries, Ran Houzai Harmless treatment further.

The 103. gas field recovered water decrements according to claim 60,62-63,65,67,69,80-83,85-87,92 or 98 Processing method it is characterised in that：Allow solid content rely on gravity filtration in sand filter, be separated into upper clear supernate and bottom precipitation Thing；Then upper clear supernate is taken out and mix with recovered water；Then make type after bottom precipitate being mixed homogeneously with coal dust, soil Coal；Then high-temperature roasting after air-drying moulded coal becomes residue；Then the raw material again residue is used as building materials, paves the way etc..

104. gas fields according to claim 60,62-63,65,67,69,80-83,85-87,92,98 or 102-103 are adopted Water outlet decrement treatment method it is characterised in that：Solid content is allowed to rely on gravity filtration, mummification in uncovered sand basin；Then by sand basin mistake Liquid caught on a filter is mixed with gas field recovered water.

105. gas field recovered water decrement treatment methods according to claim 104 it is characterised in that：To be consolidated with existing method Shape thing clears from the Shamian Island of uncovered sand basin, or regularly replaces the sand of uncovered sand basin with existing method.

The 106. gas field recovered water decrements according to claim 60,62-63,65,67,69,80-83,85-87,92 or 98 Processing method it is characterised in that：Solid content is mixed homogeneously with fine coal, soil, then makes moulded coal and air-dry；Then will air-dry It is fired into slag in moulded coal addition stove fire, then slag is used as the raw material of building block.

The 107. gas field recovered water decrements according to claim 60,62-63,65,67,69,80-83,85-87,92 or 98 Processing method it is characterised in that：Solid content is mixed homogeneously with fine coal or/and soil, then makes building block or brick and tile hair Base.

108. gas fields according to claim 60,62-63,65,67,69,80-83,85-87,92,98 or 102-107 are adopted Water outlet decrement treatment method it is characterised in that：Described solid content includes water-fast crystal, amorphous substance, precipitate, floating The mixture of any one or its two or more arbitrary proportions mixing of thing, residue, mechanical admixture, polymer etc..

109. according to arbitrary described in claim 30,60-65,66-69,80,83,85,87,90,92-93,96,98-99 Gas field recovered water decrement treatment method it is characterised in that：Described alkaline matter includes sodium hydroxide, potassium hydroxide, sodium carbonate, sky So alkali, natural aqueous alkali, ammonium hydrogen carbonate.

110. according to described gas field arbitrary in claim 60-65,66-69,80,83,85,87,90,92-93,96,98-99 Recovered water decrement treatment method it is characterised in that：Described hydrophosphate includes dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate.

111. according to described gas field arbitrary in claim 60-65,66-69,80,83,85,87,90,92-93,96,98-99 Recovered water decrement treatment method it is characterised in that：Described dihydric phosphate includes sodium dihydrogen phosphate, potassium dihydrogen phosphate, phosphoric acid Ammonium dihydrogen.

112. according to described gas field arbitrary in claim 45-46,60-65,67-69,80-83,85-87,90-93,96-99 Recovered water decrement treatment method it is characterised in that：First with acid, the pH value of clean recovered water is adjusted to 7～9, then again with desalination Moisture is separated from clean recovered water by method.

113. gas field recovered water decrement treatment methods according to claim 112 it is characterised in that：Described acid is inorganic Acid, organic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

114. gas field recovered water decrement treatment methods according to claim 113 it is characterised in that：It is furthermore preferred that it is described Acid be hydrochloric acid, formic acid, acetic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

115. gas field recovered water decrement treatment methods according to claim 102-107 it is characterised in that：By solid content Before mummification or cleaning or further harmless treatment, or before solid content is mixed with fine coal or/and soil, first will be consolidated with acid The pH value of shape thing adjusts to 6-9.

116. gas field according to claim 1 recovered water decrement treatment methods it is characterised in that：First by the recovered water of gas field Methanol content be down to below methanol flash burn concentration；Then with desalination method, moisture is separated from the recovered water of gas field again, Formed and concentrate gas field recovered water.

117. gas field recovered water decrement treatment methods according to claim 116 it is characterised in that：First in gas gathering station, Gas gathering station nearby, in well site, well site is neighbouring, any one place in purification plant or near purification plant or any 2 with Shangdi Point, the methanol content in the recovered water of gas field is down to below methanol flash burn concentration；Then again with desalination method by moisture from gas field Separate in recovered water, formed and concentrate gas field recovered water.

118. gas field recovered water decrement treatment methods according to claim 116 it is characterised in that：First will with heating means Gas field recovered water heating；Then with distillation, stripping, stripping, rectification, vacuum distillation, negative pressure stripping, negative pressure stripping, negative pressure rectification In any one or any two or more methods, the methanol content in the recovered water of gas field is down to below methanol flash burn concentration； Then with desalination method, moisture is separated from the recovered water of gas field again, formed and concentrate gas field recovered water.

119. gas field recovered water decrement treatment methods according to claim 116 it is characterised in that：First in gas gathering station, Near gas gathering station, in well site, near well site, in purification plant or near purification plant, with heating means, gas field recovered water is heated；So Afterwards with any one in distillation, stripping, stripping, rectification, vacuum distillation, negative pressure stripping, negative pressure stripping, negative pressure rectification or any Two or more methods, the methanol content in the recovered water of gas field is down to below methanol flash burn concentration；Then again will with desalination method Moisture is separated from the recovered water of gas field, is formed and concentrates gas field recovered water.

120. gas field recovered water decrement treatment methods according to claim 116 or 118 it is characterised in that：First with heating Gas field recovered water is heated by method；Then with distillation, stripping, stripping, rectification, vacuum distillation, negative pressure stripping, negative pressure stripping, bear Any one or any two or more methods in pressure rectification, gas field recovered water are separated into the thick first of methanol content more than 20% Alcohol and methanol content, less than the gas field recovered water of methanol flash burn concentration, the crude carbinol of methanol content more than 20% are recycled； Then with desalination method, moisture is separated from the recovered water of gas field again.

121. gas field recovered water decrement treatment methods according to claim 120 it is characterised in that：First in gas gathering station, Near gas gathering station, in well site, near well site, in purification plant, near purification plant, first with heating means, gas field recovered water is heated； Then with distillation, stripping, stripping, rectification, vacuum distillation, negative pressure stripping, negative pressure stripping, in negative pressure rectification any one or times Anticipate two or more methods, gas field recovered water is separated into the crude carbinol of methanol content more than 20% and methanol content is less than methanol and dodges The gas field recovered water of combustion concentration, the crude carbinol of methanol content more than 20% is recycled；Then again with desalination method by moisture It is less than the gas field recovered water of methanol flash burn concentration from methanol content and separate.

122. gas field recovered water decrement treatment methods according to claim 118-121 it is characterised in that：Described heating side Method includes environment heating means, fuel heating means, electrical heating method, waste-heat method, waste heat method, solar energy add Being used in combination of any one heating means in thermal means or arbitrarily two or more heating means.

123. gas field recovered water decrement treatment methods according to claim 1,116 it is characterised in that：First use method for oxidation Methanol in the recovered water of gas field is oxidized to formaldehyde or/and formic acid or/and carbon dioxide；Then again with desalination method by moisture from Separate in the recovered water of gas field.

124. gas field recovered water decrement treatment methods according to claim 123 it is characterised in that：Described method for oxidation Including electrolytic method, catalysed oxidation processes, discharge oxidation method, ultrasonic oxidation method, bio-oxidation process any one or Its any two kinds any integrated processes.

125. gas field recovered water decrement treatment methods according to claim 124 it is characterised in that：Described electrolytic method is Refer to the method using current electroanalysis gas field recovered water.

126. gas field recovered water decrement treatment methods according to claim 125 it is characterised in that：Described electrolytic method is The method referring to the current electroanalysis gas field recovered water using solaode generation.

127. gas field recovered water decrement treatment methods according to claim 124 it is characterised in that：Described catalysis oxidation Method includes bio-catalytical oxidation method, quasiconductor catalysed oxidation processes, redox system catalysed oxidation processes, peroxide Any one or any two or more being arbitrarily used in combination in catalytic oxidation, supercritical catalyst method for oxidation.

128. gas field recovered water decrement treatment methods according to claim 116 it is characterised in that：First by gas field recovered water In methanol content be down to below methanol flash burn concentration；Then again use electrolytic method, catalysed oxidation processes, discharge oxidation method, Ultrasonic oxidation method, any one or its any two kinds any integrated processes of bio-oxidation process, by the recovered water of gas field Methanol be oxidized to formaldehyde or/and formic acid or/and carbon dioxide；Then with desalination method, moisture is divided from the recovered water of gas field again Separate out.

129. gas field recovered water decrement treatment methods according to claim 123 or 128 it is characterised in that：Gas field is adopted After methanol in water outlet is oxidized to formaldehyde or/and formic acid, formaldehyde or/and formic acid are recycled further.

130. according to described gas field recovered water decrement treatment method arbitrary in claim 1-129 it is characterised in that：Will be with light The moisture that change method is separated from the recovered water of gas field comprehensively utilizes further.

131. gas field recovered water decrement treatment methods according to claim 130 it is characterised in that：Will with desalination method from The moisture separated in the recovered water of gas field, as middle water, water for industrial use, landscape water, water for building, slurry, life Any one or two or more application with water, farming, forestry, husbandary and fishing water.

A kind of 132. gas field recovered water method for innocent treatment are it is characterised in that comprise the steps：

1) formed and concentrate gas field sewage：With desalination method, moisture is separated from the recovered water of gas field, form concentration gas field and adopt Water outlet, to reduce the volume of gas field recovered water.

2) concentrate gas field recovered water innoxious：Gas field recovered water will be concentrated process further or/and comprehensively utilize, so that concentrated gas Field recovered water is innoxious.

133. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, will be dense Contracting gas field produced-water reinjection stratum.

134. according to claim 133 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first will Concentrate gas field recovered water art methods and reduce volume further, then reduced the concentration gas field after volume more further Produced-water reinjection stratum.

135. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, with adding Thermal evaporation method, the moisture of any one or its arbitrarily united method evaporation and concentration gas field recovered water of ventilation method of evaporating, So that it is innoxious to concentrate gas field recovered water.

136. according to claim 132 or 135 gas field recovered water method for innocent treatment it is characterised in that：Described is logical Wind method of evaporating include natural ventilating method, method of ventilation of exposing to the weather, enhanced natural ventilating method, in forced ventilation method Arbitrarily being used in combination of any one method of ventilation or any two kinds of method of ventilations or arbitrarily two or more method of ventilation.

137. according to claim 136 gas field recovered water method for innocent treatment it is characterised in that：Described gravity-flow ventilation side Method refers to allow the method for ventilation through flow surface of air or wind of nature.

138. according to claim 136 gas field recovered water method for innocent treatment it is characterised in that：Described expose to the weather logical Wind method refers to allow the air of nature or wind through flow surface and allow sunlight irradiate the method for ventilation of water.

139. according to claim 136 gas field recovered water method for innocent treatment it is characterised in that：Described strengthening nature leads to Wind method refers to the method for ventilation of direct or indirect Prosthesis's enhanced natural ventilating evaporation effect or allows water to flow in atmosphere Drop down or allow the natural ventilating method that water drips in atmosphere.

140. according to claim 136,139 gas field recovered water method for innocent treatment it is characterised in that：Described strengthening is certainly So method of ventilation include spraying, spraying, by water spray in the air, allow water to trickle in atmosphere, allow water drips in atmosphere any A kind of or arbitrarily two or more combination in any methods.

141. according to claim 136,139 gas field recovered water method for innocent treatment it is characterised in that：Described strengthening is certainly So method of ventilation is included using air height, temperature, density relationship side or side construction air channel, chimney or other types on the water Building is to form the natural ventilating method of natural air exhaust phenomenon.

142. according to claim 136,139 gas field recovered water method for innocent treatment it is characterised in that：Described strengthening is certainly So method of ventilation includes increasing the natural ventilating method of air and the contact area of water using capillarity, or utilizes various forms Filler or/and filler device increase the contact area of air and water and disengagement area natural ventilating method.

143. according to claim 140 gas field recovered water method for innocent treatment it is characterised in that：Described spraying is ultrasonic Ripple spray method, the method for any one or its combination in any of shower nozzle spray method.

144. according to claim 142 gas field recovered water method for innocent treatment it is characterised in that：Described filler device bag Include vertical rod, filler and bracket；Described filler is strip or lumps, and described vertical rod is shaft or ropy or filament, institute State bracket to be fixed in vertical rod, described filler one end is fixed on belt bracket.

145. according to claim 142 gas field recovered water method for innocent treatment it is characterised in that：Described filler device bag Include vertical rod and filler, described filler is strip or lumps, described vertical rod is shaft or ropy or filament, described filler One end is directly anchored in vertical rod.

146. according to claim 142 gas field recovered water method for innocent treatment it is characterised in that：Described filler includes gold Belong to corrugated plating, nonmetallic corrugated plating, tiling such as asbestos shingle or metal tile or gypsum tile, brick class such as hollow brick or hollow concrete block, Plasterboard, Raschig ring, Pall ring, metal gauze, nonmetallic net, mineral fibres such as glass wool cloth, carbon fibre such as carbonization branch, Space wadding, sponge, chemical fibre, staple fibre, chemical fibre product such as chemical fibre cloth or chemical fibre blanket, Plant fiber such as cotton and Fiber crops, animal fiber such as silkworm silk and wool felt, silk floss, any one or its arbitrarily two or more any joint of domestic mophead Use.

147. according to claim 142 gas field recovered water method for innocent treatment it is characterised in that：Described forced ventilation side Method is to flow and flow through the water water surface or the method for ventilation contacting with water by the wish of people with artificial method pressure air or wind.

148. according to claim 133-135 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, First use any one or its arbitrarily united method evaporation and concentration gas field recovered water of heating evaporation method, ventilation method of evaporating Moisture, reduction further concentrates the volume of gas field recovered water；Then reduced the concentration gas field recovered water after volume more further Reinjection into reservoir.

149. according to claim 132,135 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, First use heating means or waste-heat method to raise the temperature of air, form hot blast；Then reusable heat wind evaporation reduce again dense The moisture of contracting gas field recovered water.

150. according to claim 132,135 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, Reduce the moisture concentrating gas field recovered water with the method being spray-dried again.

151. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, from dense Utility and/or additional chemical agent is reclaimed in the recovered water of contracting gas field.

152. according to claim 151 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, will be dense Contracting gas field recovered water reduces volume further, then reclaims utility and/or additional chemical agent.

153. according to claim 152 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, with adding Any one in thermal evaporation method, ventilation method of evaporating or its arbitrarily united method, reduction further concentrates gas field extraction The volume of water, then reclaims utility and/or additional chemical agent.

154. according to claim 153 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use Any one in heating evaporation method, ventilation method of evaporating or its arbitrarily united method, in the recovered water of evaporation and concentration gas field Moisture；Then the additional chemical agents such as inhibitor, water discharge agent, corrosion inhibiter are reclaimed.

155. according to claim 153-154 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, First use any one in heating evaporation method, ventilation method of evaporating or its arbitrarily united method, evaporation and concentration gas field produces Moisture in water, allows concentration gas field recovered water concentrate precipitation solid content or salt eutectic substance further；Then will be brilliant to solid content or salt Material separates recycling from the recovered water of concentration gas field；Then the additional chemistry such as inhibitor, water discharge agent, corrosion inhibiter are reclaimed Agent.

156. according to claim 155 gas field recovered water method for innocent treatment it is characterised in that：By described solid content or Salt eutectic substance is used for producing different salt, alkali.

157. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use Any one in heating evaporation method, ventilation method of evaporating or its arbitrarily united method, evaporation and concentration gas field recovered water Moisture, allowing concentration gas field recovered water to concentrate further becomes solid content or salt eutectic substance and saline solution；Then by saline solution, Solid content or salt eutectic substance separate, and are separately recovered and utilize or further harmless treatment.

158. according to claim 157 gas field recovered water method for innocent treatment it is characterised in that：Described harmless further Change processes and refers to carry out high-temperature roasting, mix coal roasting, firing brick-and tile, make solid building block, entirety solid content or salt eutectic substance It is cured as solid；Or solid content is used for producing industrial salt, alkali.

159. according to claim 157 gas field recovered water method for innocent treatment it is characterised in that：Described harmless further Change processes and refers to separate saline solution, solid content or salt eutectic substance, is respectively used to produce different salt, alkali.

160. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use The moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, then will again The residue of residual or/and the further harmless treatment of residual liquid or be used for producing industrial salt, alkali after transpiring moisture.

161. according to claim 160 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, will be residual Slag high-temperature roasting, mix coal roasting, firing brick-and tile, make solid building block, integrally curing be solid；Or residue is used for producing work Industry raw material is as producing industrial salt, alkali etc..

162. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first to Concentrate any one or its arbitrarily two or more adding alkaline matter or hydrophosphate, dihydric phosphate in gas field recovered water The mixture of meaning ratio mixing is so as to form water-fast precipitation with incrustation ions such as the calcium concentrating in gas field sewage, magnesium, ferrum Thing, then precipitate is separated from the recovered water of concentration gas field；Then method of ventilation, heating means any one or its are used again The moisture of any united method evaporation and concentration gas field recovered water.

163. according to claim 162 gas field recovered water method for innocent treatment it is characterised in that：Described alkaline matter refers to The water-soluble substanceses that the pH value of water is more than 8 can be made.

164. according to claim 163 gas field recovered water method for innocent treatment it is characterised in that：Described alkaline matter bag Include sodium hydroxide, sodium carbonate, ammonium hydrogen carbonate, trona, natural aqueous alkali.

165. according to claim 162 gas field recovered water method for innocent treatment it is characterised in that：Described hydrophosphate Refer to dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate.

166. according to claim 162 gas field recovered water method for innocent treatment it is characterised in that：Described biphosphate Salt refers to sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate.

167. according to claim 162 gas field recovered water method for innocent treatment it is characterised in that：By evaporation and concentration gas field After recovered water moisture, the residue of residual or/and the further harmless treatment of residual liquid or be used for produce the raw material of industry as producing work Industry salt, alkali etc..

168. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：In step 2, first with leading to Wind method, the moisture of any one or its arbitrarily united method evaporation and concentration gas field recovered water of heating means, by concentrated gas Field recovered water is condensed into the suppression suppression ice agent liquid more than 5% for the ice agent content；Then ice agent liquids recovery will be pressed down utilize.

169. according to claim 168 gas field recovered water method for innocent treatment it is characterised in that：Ice agent content will be pressed down surpass Cross 5% suppression ice agent liquid as inhibitor, generate or be used for the antifreeze de-plugging of natural gas runner for preventing and treating gas hydrates.

170. according to described gas field recovered water method for innocent treatment arbitrary in claim 168 or 169 it is characterised in that：Will The described suppression suppression ice agent liquid organic acid more than 5% for the ice agent content or/and mineral acid adjustment pH value to 6～10 to make it Meet the use requirement of hydrate inhibitor.

171. according to claim 170 gas field recovered water method for innocent treatment it is characterised in that：Described organic acid includes The mixture of any one or its arbitrarily two or more arbitrary proportion in formic acid, acetic acid, dehydroactic acid, lactic acid；Described inorganic Acid includes the mixture of any one or its arbitrarily two or more arbitrary proportion of hydrochloric acid, sulphuric acid.

172. according to claim 168 gas field recovered water method for innocent treatment it is characterised in that：Ice agent liquid will be pressed down use In produce feed additive, chemical fertilizer, acylate, inorganic acid salt, inorganic base, organic acid, mineral acid any one or arbitrarily The mixture of two or more arbitrary proportion mixing.

173. according to claim 168 gas field recovered water method for innocent treatment it is characterised in that：Ice agent liquid will be pressed down use Press down ice agent or the solidliquid mixture of suppression ice agent in producing solid-state.

174. according to claim 173 gas field recovered water method for innocent treatment it is characterised in that：With method of ventilation, add Moisture in the arbitrarily united method evaporation suppression ice agent liquid of any one or its of thermal means, produces solid-state suppression ice agent or suppression ice The solidliquid mixture of agent.

175. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use The moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, by concentrated gas Field recovered water is condensed into the suppression ice agent and content of mineral substances concentrated solution more than 5% further；Then concentrated solution is recycled.

176. according to claim 175 gas field recovered water method for innocent treatment it is characterised in that：Described mineral refers to Water-soluble minerals.

177. according to claim 175 gas field recovered water method for innocent treatment it is characterised in that：Ice agent and mineral will be pressed down The concentrated solution more than 5% for the matter content as inhibitor, for preventing and treating gas hydrates or being used for the antifreeze de-plugging of natural gas runner.

178. according to described gas field recovered water method for innocent treatment arbitrary in claim 175-177 it is characterised in that：By institute State the concentrated solution organic acid that suppression ice agent and content of mineral substances are more than 5% or/and mineral acid adjustment pH value to 6～10, to make It meets the use requirement of hydrate inhibitor.

179. according to described gas field recovered water method for innocent treatment arbitrary in claim 175 it is characterised in that：By concentrated solution For producing feed additive, chemical fertilizer, acylate, inorganic acid salt, inorganic base, organic acid, mineral acid, solid-state suppression ice agent, suppression Ice agent solidliquid mixture, the mixture of any one or any two or more arbitrary proportion mixing of solid fossil matter.

180. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use The moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, makes concentrated gas Field recovered water is separated into top aqueous solutions of polymers layer and bottom concentration gas field recovered water layer；Then it is separated into polymer again Aqueous solution and concentration gas field recovered water；Then again aqueous solutions of polymers is recycled.

181. according to claim 180 gas field recovered water method for innocent treatment it is characterised in that：First adopt concentrating gas field Water outlet is precipitated as supernatant and precipitate, and precipitate is comprehensively utilized or innoxious further；Then method of ventilation, heating are used again The moisture of method any one or its arbitrarily united method evaporation and concentration gas field recovered water, makes concentration gas field recovered water be separated into Top aqueous solutions of polymers layer and bottom concentration gas field recovered water layer；Then it is separated into aqueous solutions of polymers and concentrated gas again Field recovered water；Then again aqueous solutions of polymers is recycled.

182. according to claim 181 gas field recovered water method for innocent treatment it is characterised in that：With method of ventilation, add Aqueous solutions of polymers moisture that the arbitrarily united method evaporation of thermal means any one or its is isolated, to recycle water solublity High polymer.

183. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first to Concentrate any one or any two or more mixing adding in the recovered water of gas field in formic acid, acetic acid, dehydroactic acid, lactic acid Thing, then uses the water of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water again Point.

184. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use The moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, by concentrated gas Field recovered water is condensed into suppression ice agent liquid and solid content；Then add formic acid, acetic acid again in suppression ice agent liquid and solid content, take off Any one or any two or more mixture in hydroacetic acid, lactic acid.

185. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first to Concentrate and in gas field recovered water, add water-soluble inorganic acid, then arbitrarily joined with method of ventilation, heating means any one or its again The moisture of the method evaporation and concentration gas field recovered water closing.

186. according to claim 132 gas field recovered water method for innocent treatment it is characterised in that：Step 2) in, first use The moisture of method of ventilation, heating means any one or its arbitrarily united method evaporation and concentration gas field recovered water, makes concentrated gas Field recovered water is separated into top functional chemical oxidant layer and bottom concentration gas field recovered water layer；Then it is isolated functional again Chemical agent and concentration gas field recovered water；Then again functional chemical agent is recycled；Gas field recovered water will be concentrated again further Comprehensive utilization or harmless treatment.

187. according to claim 186 gas field recovered water method for innocent treatment it is characterised in that：Described feature Learn agent include foaming water discharge agent, corrosion inhibiter, antisludging agent, foaming agent, sand washing agent, sand cleaning fluid any one or any two or more The mixture of arbitrary proportion.

188. according to claim 135,148-150,153-155,157,160,162,168,174-175,180-183 or 186 In arbitrary described gas field recovered water method for innocent treatment it is characterised in that：First gas field will be concentrated with acid or/and sour gas The pH value of recovered water adjusts to 6.5～8.5；Then heating evaporation method, any one or its of ventilation method of evaporating are used again Anticipate the moisture of united method evaporation and concentration gas field recovered water.

189. according to claim 188 gas field recovered water method for innocent treatment it is characterised in that：Described acid is inorganic Acid, organic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

190. according to claim 189 gas field recovered water method for innocent treatment it is characterised in that：Described acid be hydrochloric acid, Formic acid, acetic acid, dehydroactic acid, lactic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixing Thing.

191. according to claim 188 gas field recovered water method for innocent treatment it is characterised in that：Described sour gas is Refer to the mixture of any one or its arbitrary proportion of carbon dioxide, sulfur dioxide, hydrogen sulfide.

A kind of 192. gas field recovered water method for innocent treatment it is characterised in that：Evaporate the water of gas field recovered water with method of ventilation Point, so that gas field recovered water is innoxious；Described method of ventilation refers to increase sky using various forms of fillers or/and filler device Gas and the contact area of water and the method for ventilation of disengagement area.

193. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：Described filler device bag Include vertical rod, filler and bracket；Described filler is strip or lumps, and described vertical rod is shaft or ropy or filament, institute State bracket to be fixed in vertical rod, described filler one end is fixed on belt bracket.

194. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：Described filler device bag Include vertical rod and filler, described filler is strip or lumps, described vertical rod is shaft or ropy or filament, described filler One end is directly anchored in vertical rod.

195. according to described gas field recovered water method for innocent treatment arbitrary in claim 192-194 it is characterised in that：Described Filler includes metal corrugated plate, nonmetallic corrugated plating, tiling such as asbestos shingle or metal tile or gypsum tile, brick class such as hollow brick or water Mud hollow brick, plasterboard, Raschig ring, Pall ring, metal gauze, nonmetallic net, mineral fibres such as glass wool cloth, carbon fibre are such as Carbonization branch, space wadding, sponge, chemical fibre, staple fibre, chemical fibre product such as chemical fibre cloth or chemical fibre blanket, Plant fiber Any one or its as cotton and fiber crops, animal fiber such as silkworm silk and wool felt, silk floss, domestic mophead are arbitrarily two or more Arbitrarily it is used in combination.

196. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：Described method of ventilation is The method referring to any one or its combination in any using ultrasonic atomization method, shower nozzle spray method increases connecing of air and water Contacting surface amasss the method for ventilation with disengagement area.

197. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：Described ventilation evaporation side Method refers to hot blast method of evaporating.

198. according to claim 197 gas field recovered water method for innocent treatment it is characterised in that：First use heating means liter The temperature of high air, forms hot blast；Then reusable heat wind evaporates the moisture of gas field recovered water, so that gas field recovered water is innoxious Change.

199. according to claim 196-197 gas field recovered water method for innocent treatment it is characterised in that：First use heating side Method raises the temperature of air, forms hot blast；Then evaporate the moisture of gas field recovered water again with spray drying process, so that gas field is adopted Water outlet is innoxious.

200. according to described gas field recovered water method for innocent treatment arbitrary in claim 197-199 it is characterised in that：Described Heating means include environment heating means, fuel heating means, electrical heating method, waste-heat method, waste heat method, Being used in combination of any one heating means in solar energy heating method or arbitrarily two or more heating means.

201. according to claim 199 gas field recovered water method for innocent treatment it is characterised in that：Described spray drying side Method refers to for aqueous dispersion to become fine particles to increase the drying meanss of water and hot air area；Or refer to ultrasound wave Spray method, the method for any one or its combination in any of shower nozzle spray method.

202. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle add inorganic flocculating agent or/and organic flocculant so as to gas field recovered water in mechanical admixture, emulsifying hydrocarbon or/and dissolving Hydrocarbon forms floccule；Then with existing method, floccule is separated from recovered water, form clean recovered water；Then use again The moisture of the clean recovered water of method of ventilation evaporation, so that gas field recovered water is innoxious.

203. according to claim 202 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle addition alkaline matter, makes the pH value of recovered water be more than 7；Then first add in the recovered water of gas field again inorganic flocculating agent or/and Organic flocculant.

204. according to claim 202 gas field recovered water method for innocent treatment it is characterised in that：Produce to gas field simultaneously Alkaline matter, inorganic flocculating agent or/and organic flocculant is added in water；Or, first in the recovered water of gas field, add inorganic flocculation After agent or/and organic flocculant, then add alkaline matter in the recovered water of gas field, the pH value of water is adjusted to more than 7.

205. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle any one or its arbitrarily two or more arbitrary proportions mixing adding alkaline matter or hydrophosphate, dihydric phosphate mixed Compound is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method by suspension or troubled liquor It is separated into solid content and clean recovered water；Then the moisture of clean recovered water is evaporated again with method of ventilation, so that gas field recovered water Innoxious.

206. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle any one or its arbitrarily two or more arbitrary proportions mixing adding alkaline matter or hydrophosphate, dihydric phosphate mixed Compound is so as to react into suspension or troubled liquor with gas field recovered water；Then with existing method by clean recovered water from suspended Separate in liquid or troubled liquor；Then the moisture of clean recovered water is evaporated again with method of ventilation.

207. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle any one or its arbitrarily two or more arbitrary proportions mixing adding alkaline matter or hydrophosphate, dihydric phosphate mixed Compound so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form water-fast solid content；Use existing method again Solid content is separated from recovered water, forms clean recovered water；Then the water of clean recovered water is evaporated again with method of ventilation Point.

208. according to claim 202,205-207 gas field recovered water method for innocent treatment it is characterised in that：Described existing Have method refer to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation any one Plant or arbitrarily two or more arbitrarily united method；Or refer to filtration, pressure-filtering tank filtration, pressure filter filter pressing, add inorganic wadding Any one or any two or more arbitrarily united method of solidifying agent, addition macromolecule organic flocculating agent or/and flocculation aid；Or Person refers to standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation, filtration, pressure-filtering tank Filtration, pressure filter filter pressing, add inorganic flocculating agent, add any one of macromolecule organic flocculating agent or/and flocculation aid or appoint The two or more arbitrarily united method of meaning.

209. according to claim 205-207 gas field recovered water method for innocent treatment it is characterised in that：Described existing side Method refers to any one string of standing, precipitation, air supporting, gravity filter device filtration, solid- liquid separation, cyclonic separation, centrifugation Connection or/and the method for parallel connection；Or refer to filtration, pressure-filtering tank filtration, pressure filter filter pressing, add inorganic flocculating agent, add high score Sub- organic flocculant or/and any one or any two or more arbitrarily united method of flocculation aid.

210. according to claim 208-209 gas field recovered water method for innocent treatment it is characterised in that：Described gravity mistake Filter device refers to uncovered or open to atmosphere natural filtration device, also refers to the mistake relying on liquid self gravitation to pass through filter layer or filtrate Filter device.

211. according to claim 210 gas field recovered water method for innocent treatment it is characterised in that：Described gravity filtration dress Put including uncovered container casing and the filter layer being arranged on bottom in container casing；Described container casing bottom or bottom are provided with Outlet.

212. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle any one or its arbitrarily two or more arbitrary proportions mixing adding alkaline matter or hydrophosphate, dihydric phosphate mixed Compound so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or troubled liquor；Then by suspension Or troubled liquor is placed in container；Then stand, make solid content be settled down to lower vessel portion, form clean extraction in upper vessel portion Water；Then evaporate the moisture of clean recovered water again with method of ventilation, formed in upper vessel portion and concentrate gas field recovered water；Then will be dense Further harmless treatment is separated in contracting gas field extraction water from container；Then again will be harmless further for the solid content in container Change and process or high-temperature roasting.

213. according to claim 212 gas field recovered water method for innocent treatment it is characterised in that：First by consolidating in container Shape thing is separated, by further for solid content harmless treatment or high-temperature roasting；Then gas field recovered water will be concentrated again from container Inside separate further harmless treatment.

214. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First to gas field recovered water Middle any one or its arbitrarily two or more arbitrary proportions mixing adding alkaline matter or hydrophosphate, dihydric phosphate mixed Compound so as to gas field recovered water in calcium, magnesium, the incrustation ion such as ferrum form suspension or troubled liquor；Then by suspension Or troubled liquor is placed in container；Then stand, make solid content be settled down to lower vessel portion, form clean extraction in upper vessel portion Water；Then clean gas field is produced in water from container and separate；Then the moisture of clean recovered water is evaporated again with method of ventilation； Then again by further for the solid content in container harmless treatment or high-temperature roasting.

215. according to claim 214 gas field recovered water method for innocent treatment it is characterised in that：First by consolidating in container Shape thing is separated.

216. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First by alkaline matter or Hydrophosphate, the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate add in container； Then again gas field recovered water is added in container, form suspension or troubled liquor；Then stand, form cleaning in upper vessel portion Recovered water；Then the moisture of clean recovered water is evaporated again with method of ventilation.

217. according to claim 216 gas field recovered water method for innocent treatment it is characterised in that：First by clean recovered water From separating in container；Then the moisture of clean recovered water is evaporated again with method of ventilation.

218. according to claim 192,216 gas field recovered water method for innocent treatment it is characterised in that：First by basic species Matter or hydrophosphate, the mixture of any one or its arbitrarily two or more arbitrary proportions mixing of dihydric phosphate add container In；Then again gas field recovered water is added in container, form suspension or troubled liquor；Then stand, formed in upper vessel portion Clean recovered water, forms solid content in lower vessel portion；Then separate in clean extraction water from container, by consolidating in container The further harmless treatment of shape thing or high-temperature roasting；Then the moisture of clean recovered water is evaporated again with method of ventilation.

219. according to claim 192 gas field recovered water method for innocent treatment it is characterised in that：First by gas field recovered water Add in container；Again by any one or its arbitrarily two or more any ratio of alkaline matter or hydrophosphate, dihydric phosphate The mixture of example mixing adds in container, forms suspension or troubled liquor；Then stand, form clean extraction in upper vessel portion Water；Then the moisture of clean recovered water is evaporated again with method of ventilation.

220. according to claim 219 gas field recovered water method for innocent treatment it is characterised in that：First by gas field recovered water Add in container；Again by any one or its arbitrarily two or more any ratio of alkaline matter or hydrophosphate, dihydric phosphate The mixture of example mixing adds in container, forms suspension or troubled liquor；Then stand, form clean extraction in upper vessel portion Water, forms solid content in lower vessel portion；Then separate in clean extraction water from container, the solid content in container is entered one Step harmless treatment or high-temperature roasting；Then the moisture of clean recovered water is evaporated again with method of ventilation.

221. is innoxious according to arbitrary described gas field recovered water in claim 202,205,207,212-215,218 or 220 Processing method it is characterised in that：Solid content is sent into mummifying pool or/and gravity filter device filters, is dehydrated, air-dries, Ran Houzai Harmless treatment further.

222. is innoxious according to arbitrary described gas field recovered water in claim 202,205,207,212-215,218 or 220 Processing method it is characterised in that：By further for the solid content isolated harmless treatment or high-temperature roasting.

223. is harmless according to arbitrary described gas field recovered water in claim 202,205,207,212-215,218,220-222 Change processing method it is characterised in that：Allow solid content rely on gravity filtration in sand filter, be separated into upper clear supernate and bottom precipitation Thing；Then upper clear supernate is taken out and mix with recovered water；Then make type after bottom precipitate being mixed homogeneously with coal dust, soil Coal；Then high-temperature roasting after air-drying moulded coal becomes residue；Then the raw material again residue system is used as building materials, paves the way etc..

224. according to described gas field recovered water method for innocent treatment arbitrary in claim 221-223 it is characterised in that：Allow Solid content relies on gravity filtration, mummification in uncovered sand basin；Then the liquid that sand basin filters out is mixed with gas field recovered water.

225. according to described gas field recovered water method for innocent treatment arbitrary in claim 221-222 it is characterised in that：Will Solid content is mixed homogeneously with fine coal, loess, then makes moulded coal and air-dries；Then air-dried moulded coal is added in stove fire and be fired into stove Then slag is used as the raw material of building block by slag.

226. according to described gas field recovered water method for innocent treatment arbitrary in claim 221-223 it is characterised in that：Will Solid content is mixed homogeneously with fine coal or/and loess, then makes building block or brick and tile blank.

227. according to described gas field recovered water method for innocent treatment arbitrary in claim 221-226 it is characterised in that：? Solid content is filtered, before dehydration and drying or cleaning or further harmless treatment, or by solid content and fine coal or/and soil Before mixing, first with acid, the pH value of solid content is adjusted to 6-9.

228. according to described gas field recovered water method for innocent treatment arbitrary in claim 203-227 it is characterised in that：Collection In gas station or gas gathering station nearby, any one place in well site or near well site, in purification plant or near purification plant or Any more than 2 places, add any one or its of alkaline matter or hydrophosphate, dihydric phosphate in the recovered water of gas field The mixture of arbitrarily two or more arbitrary proportion mixing.

229. according to described gas field recovered water method for innocent treatment arbitrary in claim 203-228 it is characterised in that：First Light oil and/or emulsifying hydrocarbon are separated from the recovered water of gas field；Alkaline matter or phosphoric acid is added again in the recovered water of gas field Hydrogen salt, the mixture of the arbitrarily two or more arbitrary proportions mixing of any one or its of dihydric phosphate.

230. according to described gas field recovered water method for innocent treatment arbitrary in claim 203-229 it is characterised in that：First Gas field recovered water and light oil and/or emulsifying hydrocarbon mixture are placed in standing in container, then by light oil and/or emulsifying hydrocarbon from gas Separate in the recovered water of field.

231. according to described gas field recovered water method for innocent treatment arbitrary in claim 203-229 it is characterised in that：Institute State the water-soluble substanceses that alkaline matter refers to make the pH value of water to be more than 8, such as sodium hydroxide, potassium hydroxide, sodium carbonate, trona, Natural aqueous alkali, ammonium hydrogen carbonate etc..

232. according to described gas field recovered water method for innocent treatment arbitrary in claim 205-229 it is characterised in that：Institute The hydrophosphate stated refers to the arbitrarily two or more arbitrary proportions mixing of any one or its in hydrophosphate soluble in water Mixture.As dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate etc..

233. according to described gas field recovered water method for innocent treatment arbitrary in claim 205-229 it is characterised in that：Institute The dihydric phosphate stated refers to that any one or its arbitrarily two or more arbitrary proportion in dihydric phosphate soluble in water mix The mixture closing.As sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate etc..

234. is harmless according to arbitrary described gas field recovered water in claim 202,205,207,212-215,218,220-227 Change processing method it is characterised in that：Described solid content includes water-fast crystal, amorphous substance, precipitate, floating thing, residual The mixture of any one or its two or more arbitrary proportions mixing of slag, mechanical admixture, polymer etc..

235. according to described gas field recovered water method for innocent treatment arbitrary in claim 192-220,228-230, and it is special Levy and be：First with acid or/and sour gas, the pH value of gas field recovered water is adjusted to 6.5～8.5；Then again with ventilation evaporation side Method evaporates the moisture of gas field recovered water.

236. according to claim 235 gas field recovered water method for innocent treatment it is characterised in that：Described acid is inorganic Acid, organic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixture.

237. according to claim 236 gas field recovered water method for innocent treatment it is characterised in that：Described acid be hydrochloric acid, Formic acid, acetic acid, dehydroactic acid, lactic acid any one or do not occur chemical reaction arbitrarily two or more arbitrary proportions mixing Thing.

238. according to described gas field recovered water method for innocent treatment arbitrary in claim 192-220,228-230, and it is special Levy and be：Described sour gas refers to the mixing of any one or its arbitrary proportion of carbon dioxide, sulfur dioxide, hydrogen sulfide Thing.

239. according to described gas field recovered water method for innocent treatment arbitrary in claim 192-237 it is characterised in that：First Evaporate the moisture of gas field recovered water with method of ventilation, formed and concentrate gas field recovered water；Then gas field recovered water will be concentrated as suppression Preparation, for preventing and treating gas hydrates or being used for the antifreeze de-plugging of natural gas runner.

240. according to described gas field recovered water method for innocent treatment arbitrary in claim 238 it is characterised in that：With organic Acid or/and mineral acid will concentrate gas field recovered water adjustment pH value to 6～10, make it meet the use of hydrate inhibitor to want Ask.