CN107459999B - A kind of condensate demulsification water purification agent and preparation method thereof - Google Patents
A kind of condensate demulsification water purification agent and preparation method thereof Download PDFInfo
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- CN107459999B CN107459999B CN201710616672.9A CN201710616672A CN107459999B CN 107459999 B CN107459999 B CN 107459999B CN 201710616672 A CN201710616672 A CN 201710616672A CN 107459999 B CN107459999 B CN 107459999B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1033—Oil well production fluids
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Abstract
The present invention discloses a kind of condensate demulsification water purification agent, water-oil separating for condensation oil emulsion, it includes cation polyether class demulsifier, water purification degreaser, allyl chloride, gemini surfactant and water that it, which prepares component, by weight percentage, the inventory accounting of each component are as follows: polyethers demulsifier 30%~40%, water purification degreaser 10%~20%, allyl chloride 4%~6%, gemini surfactant 0.6%~1.5%, water surplus.Under this demulsification water purification agent alkaline condition, using palladium acetate as catalyst, modification is formed at a suitable temperature.The low temperature of condensation oil emulsion, quick, efficient process can be achieved in the present invention, and water purification flocculation ability is strong, and oil-water separation is excellent, and abjection water is as clear as crystal, is suitable for gas-field exploitation oil gas water three phase and separates.
Description
Technical field
The invention belongs to oil gas field technical field of chemistry, are related to gas-field exploitation oil gas water three phase separation field, and in particular to
A kind of condensate demulsification water purification agent.In addition, the present invention gives the preparation method of the demulsification water purification agent.
Background technique
As soon as after China became an oil importers by an oil exporting country from 1993, crude oil problem in short supply is deposited always
And become increasingly conspicuous, the dependence of international raw oil market is gradually increased.With being continuously increased for domestic petroleum yield, China
Petroleum resources are fewer and fewer, affect the stabilization and development of national economy to a certain extent.
In some oil-gas bearing basins in China, a certain amount of condensate of many equal associations of natural gas pool.It can by Organic matter type
Condensate is divided into the condensate of marine facies sapropelic organic matters generation, the condensate that coal measures geology humus organic matter generates and land
Mix the condensate of type machine matter generation.Condensate has the content of small specific gravity, heavy hydrocarbon and non-hydrocarbon component more former than general
The advantages that oil is low, volatility is good, and quality is good, high income, is the extremely good raw material of petroleum refining industry.Not with oil gas field
Disconnected development and utilization and the continuous improvement of condensate recovery technology, condensate will become the new petroleum resources that can not be despised, be
One of important supplement energy.
Presently, each Gas Fields give phase to the processing of the condensation fat liquor of foam drainage gas recovery extraction both at home and abroad
When big attention, and widely popularize condensation oil recovery techniques.Filling demulsifier recycling condensate is a kind of most simple and effective side
Method.But the development and exploitation of existing condensate demulsifier still rest on simple polyoxyethylene polyoxypropylene block polyether mostly
Development and compounding on；Also, there is dangerous, the feature of environmental protection is poor, low temperature (5 DEG C) demulsification is poor for existing condensate demulsifier
The disadvantages of slow with de-emulsification speed.Obviously, traditional demulsifier product can no longer meet the requirement of oil-gas mining, thus novel height
The research and application for imitating demulsifier have seemed extremely urgent.
Summary of the invention
The technical problem to be solved in the present invention: in view of the self-characteristic of existing condensate demulsifier, cause its scope of application
Relatively narrow, demulsification is poor under cryogenic, de-emulsification speed is slow, and water-oil separating is undesirable, it is difficult to meet gas-field exploitation oil gas water
The demand of three phase separation.
The technical solution solved the problems, such as: the present invention provides a kind of condensate demulsification water purification agent, and the demulsification water purification agent contains
Have cation polyether class demulsifier and water purification degreaser, it can be achieved that the low temperature of condensation oil emulsion, quickly, efficient process, and
Water purification flocculation ability is strong, and oil-water separation is excellent, and abjection water is as clear as crystal.
A kind of condensate demulsification water purification agent, for the water-oil separating of condensation oil emulsion, prepare component include sun from
Sub- polyethers demulsifier, water purification degreaser, allyl chloride, gemini surfactant and water, by weight percentage, respectively
The inventory accounting of component are as follows:
Further, after by carboxylic acid and hydroxylamine amidation process occurs for the cation polyether class demulsifier, then through season
Ammonium reacts to obtain.Such as dicarboxylic acids and dimethylamino propylamine, reacts and obtains with quaternizing agent epichlorohydrin at moderate temperatures,
Molecular formula is as follows.
The cation polyether class demulsifier easily disperses in oil, water phase, it is easier to be flocked on oil-water interfaces, more have
Effect rapidly destroys oil-water interfacial film.Its molecular weight is not high, but contained ammonium cation has neutralized surface charge, changes oil
Water termination activity, overcomes the repulsive interaction of electric double layer, and low intensive, loose interfacial film is formed on oil-water interfaces, and oil droplet is poly-
It gathers together, achievees the purpose that water-oil separating, prevent the deposition of colloidal bitumen paraffin, make to deviate from water as clear as crystal.
As a preferred embodiment, the cation polyether class demulsifier selects polyethers demulsifier wd-1, wd-
299, any one of sd-309, yh-1, yh-2.Wd-1, wd-299, sd-309, yh-1, yh-2 belong to cation polyether class
Demulsifier is developed by Shaanxi Sen Rui petroleum technology development corporation, Ltd..
Further, the water purification degreaser is alkyl ammomium chloride polymer.In embodiments of the present invention, described net
Water degreaser can be highly polar macromolecular oil removing water purification agent, and molecular weight can achieve 200000.The water purification degreaser is added
Purpose is, reticular structure is formed on two-phase interface, and this structure filters off the dirt in emulsion just as filter screen, reaches
To the purpose of demulsification purification.
As a preferred embodiment, the water purification degreaser selects double dodecyl dimethyl ammonium chloride polymers.
This Jin Ao Chemical Co., Ltd., polymer Anhui Province is on sale.
As a preferred embodiment, the gemini surfactant selects bromination dimethyl dodecyl base benzyl
Base ammonium.The effect of the gemini surfactant is the tension for reducing oil-water interfacial film, breaks the steady of original interfacial film
Solidity.
On the other hand, the present invention gives the preparation method of the condensate demulsification water purification agent, by formula accounting
Accurately weigh each component；0.1%KOH aqueous solution is added in a kettle, is slowly added to oil removing by catalyst of palladium acetate
Water purification agent, cation polyether class demulsifier, while stirring is opened, so that it is uniformly dispersed, is warming up to 40 DEG C, allyl chloride is instilled
In reaction kettle, 80 DEG C are warming up to, gemini surfactant is added in stirring, stirs evenly to obtain the condensate demulsification
Water purification agent.
As a preferred embodiment, the alkaline solution is the potassium hydroxide or hydroxide that mass fraction is 0.1%
Sodium water solution.
Compared with prior art, condensate of the present invention demulsification water purification agent, at least have the following beneficial effects or
Advantage.
The constituent component of condensate demulsification water purification agent of the present invention includes cation polyether class demulsifier, water purification oil removing
Agent, allyl chloride, gemini surfactant and water.Water purification degreaser is that the macromolecular with strong acute group is organic poly-
Object is closed, there is absorption volume to sweep, coalesce flocculated effect.This condensate demulsification water purification agent has low temperature (5 DEG C), quick, height
The advantages that imitating, be applied widely, and water purification flocculation ability is strong, and abjection water is as clear as crystal, realizes grease quick separating.It is described solidifying
Condensate oil with demulsification water purification agent preparation process it is simple, above-mentioned each component under alkaline condition, using palladium acetate as catalyst, be suitable for
At a temperature of modification form.
The present invention gives the test method of oil-containing in the evaluation method and water of the condensate demulsification water purification agent, can
For petroleum, gas extraction, collection all various aspects such as defeated, storage and transportation and oil refining.The present invention provides one kind for condensate demulsification
Low temperature, quick, efficient process condensation oil emulsion method, can produce biggish economic interests and social benefit, have wide
Application prospect.
Specific embodiment
Below by example, the present invention will be further described, it should be noted that following examples be only the present invention its
In example, do not represent rights protection scope defined by the present invention, the scope of the present invention is with claims
It is quasi-.
Embodiment 1, the preparation of condensate demulsification water purification agent
The present embodiment provides 5 kinds of formula different condensate demulsification water purification agents.The formula and system of every kind of demulsification water purification agent
Preparation Method is as follows.
(1) preparation of demulsification water purification agent SR-DNP
Formula composition: the inventory of each component by weight percentage, 30% polyether demulsification agent wd-1 (the gloomy auspicious petroleum in Shaanxi
Technological development Co., Ltd develops), (advanced property organic macromolecule selects double dodecyl dimethyl chlorine to 10% oil removing water purification agent
Change ammonium polymer, Jin Ao Chemical Co., Ltd., Anhui Province is on sale), 4% allyl chloride, 0.6% gemini surfactant
(bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium), 55.4% clear water.
Preparation method: formula accounting accurately weighs each component；0.1%KOH aqueous solution is added, in a kettle with vinegar
Sour palladium is that catalyst is slowly added to oil removing water purification agent, polyether demulsification agent wd-1, while opening stirring, so that it is uniformly dispersed, heats up
To 40 DEG C, allyl chloride is instilled in reaction kettle, is warming up to 80 DEG C, stirs 2h, gemini surfactant, stirring is added
It is uniform to obtain condensate demulsification water purification agent SR-DNP.
(2) preparation of demulsification water purification agent SR-8A
Formula composition: the inventory of each component by weight percentage, 32% polyether demulsification agent yh-1 (the gloomy auspicious petroleum in Shaanxi
Technological development Co., Ltd develops), (advanced property organic macromolecule selects double dodecyl dimethyl chlorine to 15% oil removing water purification agent
Change ammonium polymer, Jin Ao Chemical Co., Ltd., Anhui Province is on sale), 4.5% allyl chloride, 1% gemini surfactant
(bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium), 47.5% clear water.
Preparation method: formula accounting accurately weighs each component；0.1%KOH aqueous solution is added, in a kettle with vinegar
Sour palladium is that catalyst is slowly added to oil removing water purification agent, polyether demulsification agent yh-1, while opening stirring, so that it is uniformly dispersed, heats up
To 40 DEG C, allyl chloride is instilled in reaction kettle, is warming up to 80 DEG C, stirs 2.5h, gemini surfactant is added, stirs
Uniform the condensate is mixed to be demulsified water purification agent SR-8A.
(3) preparation of demulsification water purification agent SR-SR1
Formula composition: the inventory of each component by weight percentage, 35% polyether demulsification agent yh-2 (the gloomy auspicious petroleum in Shaanxi
Technological development Co., Ltd develops), (advanced property organic macromolecule selects double dodecyl dimethyl chlorine to 12% oil removing water purification agent
Change ammonium polymer, Jin Ao Chemical Co., Ltd., Anhui Province is on sale), 5% allyl chloride, 1.2% gemini surfactant
(bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium), 46.8% clear water.
Preparation method: formula accounting accurately weighs each component；0.1%NaOH aqueous solution is added in a kettle, with
Palladium acetate is that catalyst is slowly added to oil removing water purification agent, polyether demulsification agent yh-2, while opening stirring, so that it is uniformly dispersed, rises
Temperature instills allyl chloride in reaction kettle to 40 DEG C, is warming up to 80 DEG C, stirs 3h, and gemini surfactant is added, stirs
Uniform the condensate is mixed to be demulsified water purification agent SR-SR1.
(4) preparation of demulsification water purification agent SR-SR2
Formula composition: the inventory of each component by weight percentage, 40% polyether demulsification agent sd-309 (the gloomy auspicious stone in Shaanxi
Oil tech development corporation, Ltd. develops), (advanced property organic macromolecule selects double dodecyl dimethyls to 18% oil removing water purification agent
Ammonium chloride polymer, Jin Ao Chemical Co., Ltd., Anhui Province are on sale), 6% allyl chloride, 1.5% gemini quaternary ammonium salt surface-active
Agent (bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium), 34.5% clear water.
Preparation method: formula accounting accurately weighs each component；0.1%NaOH aqueous solution is added in a kettle, with
Palladium acetate is that catalyst is slowly added to oil removing water purification agent, polyether demulsification agent sd-309, while opening stirring, it is made to be uniformly dispersed,
40 DEG C are warming up to, allyl chloride is instilled in reaction kettle, is warming up to 80 DEG C, stirs 2.5h, gemini quaternary ammonium salt surface-active is added
Agent stirs evenly to obtain the condensate demulsification water purification agent SR-SR2.
(5) preparation of demulsification water purification agent SR-SR3
Formula composition: the inventory of each component by weight percentage, 35% polyether demulsification agent wd-299 (the gloomy auspicious stone in Shaanxi
Oil tech development corporation, Ltd. develops), (advanced property organic macromolecule selects double dodecyl dimethyls to 15% oil removing water purification agent
Ammonium chloride polymer, Jin Ao Chemical Co., Ltd., Anhui Province are on sale), 5% allyl chloride, 1.5% gemini quaternary ammonium salt surface-active
Agent (bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium), 43.5% clear water.
Preparation method: formula accounting accurately weighs each component；0.1%KOH aqueous solution is added, in a kettle with vinegar
Sour palladium is that catalyst is slowly added to oil removing water purification agent, polyether demulsification agent wd-299, while opening stirring, so that it is uniformly dispersed, rises
Temperature instills allyl chloride in reaction kettle to 40 DEG C, is warming up to 80 DEG C, stirs 2h, and gemini surfactant is added, stirs
Uniform the condensate is mixed to be demulsified water purification agent SR-SR3.
Embodiment 2, the effect assessment of condensate demulsification water purification agent
The present embodiment provides the evaluation method of a set of condensate demulsification water purification agent.First carry out polyether demulsification agent and
The mass-election of oil removing water purification agent works, and selection can be realized the polyether demulsification agent of greasy filth water three phase separation, further modified to make,
Investigate the concertedness of each group of formula.It investigates with fast dewatering, absolute oil water purification ability is strong, compression of intermediate layer dynamics greatly target.
Greasy filth water three phase separation takes bottle to try method, and concussion mixing, static sedimentation observation record water yield, out on time manually
Oil mass, the data such as intermediate layer thickness.
For the further quantitative assessment condensate effect of demulsification water purification agent, oil-containing in water phase can be measured after water-oil separating
Amount and oil content, water content, impurity content and ferrous sulfide concentration in middle layer greasy filth etc..Wherein, evaluation condensate demulsification
The key index of water purification agent is the data of oil-containing in water.Preferably, the present embodiment takes absorbance method to be tested.
(1) water by Spectrophotometry phase oil content
Take respectively demulsification be layered after oily phase in by the dewatered oil sample 0.00ml, 0.50ml of anhydrous calcium chloride,
In 100ml volumetric flask, it is fixed to be diluted with petroleum ether by 1.00ml, 2.00ml, 5.00ml, 10ml, 15ml, 20ml, 25ml, 50ml
Hold, the concentration of this standard series is respectively: 0.00mg/ml, 5.00mg/ml, 10.00mg/ml, 20.00mg/ml, 50.00mg/
Ml, 100.00mg/ml, 150.00mg/ml, 200.00mg/ml, 250.00mg/ml, 500.00mg/ml, on spectrophotometer
Its absorbance is surveyed respectively, and then using concentration as abscissa, absorbance is ordinate, draws concentration-absorbance standard curve.
100ml petroleum ether is added in extraction flask in as clear as crystal water phase 2ml after taking demulsification to be layered, and concussion is rocked, quiet
It sets, after extraction completely, takes upper layer petroleum ether layer, with spectrophotometric determination absorbance, obtain concentration values on mark curve,
Multiplied by the oil content in 50 as water phase.
(2) oil content in spectrophotometry measurement middle layer greasy filth
100ml petroleum ether is added in extraction flask in middle layer 10ml after taking demulsification to be layered, and concussion is rocked, and stands, extraction
After taking entirely, upper layer petroleum ether layer is taken, with spectrophotometric determination absorptance, is obtained on the standard curve obtained in (1) dense
Degree value, multiplied by 10 be middle layer greasy filth oil content.
Embodiment 3, long celebrating two factory's condensation oil emulsion of gas production competition
(1) factor analysis is emulsified
Condensate is generally extremely difficult to emulsify, once emulsification extremely difficult demulsification again, for the emulsification factor for exploring the emulsion, this reality
It applies example and has carried out following exploration.
50ml condensate, 100ml tap water, 1.5g bubble rod row (Chengdu Fuji Technology Co., Ltd. sells) mixing are taken,
It acutely rocks, forms the emulsion uniformly emulsified.After emulsion is placed 15 days, oil mutually has no separation, and water phase slightly whitens color.
Demulsifier is added and carries out demulsification evaluation test discovery, middle layer does not disappear, and to guarantee that water-oil phase separation is thorough
Bottom, shale, emulsifier, suspended matter etc. in emulsion can be all enriched with to middle layer, the bits according to previous experiences, in emulsion
Often play a part of solidification interface film-strength, lotion can be made extremely firm.Therefore, analysis test has been carried out to middle layer, surveyed
Test result such as table 2.
Table 2, the layer analysis test of emulsion centre
2 data of table find out that emulsion middle layer FeS content is higher, since FeS has particle to have biggish specific surface area,
Adsorption capacity is stronger, therefore firm effect is played to emulsion.
In conclusion the emulsified component of the condensation oil emulsion being emulsified into because being mainly foam discharging agent, followed by FeS particle
To the stabilization of emulsion.
(2) polyether demulsification agent primary election
According to it is above-mentioned to be emulsified into because analysis, in the research of early period, to 48 kinds have neutralize foam discharging agent emulgate ingredient
Demulsifier carry out primary election, after largely comparing select 5 kinds of polyether demulsification agents haveing excellent performance.Specific experiment data are shown in
Table 3.
Table 3, the experimental data of 5 kinds of polyether demulsification agents
The dewatering speed that can be seen that polyether demulsification agent yh-1 from data shown in watch 3 is most fast, and wd-1 water purification absolute oil effect is aobvious
It writes, and the compression of polyether demulsification agent yh-1, wd-1 middle layer is obvious.
(3) 10 DEG C of system formulations determine
On the basis of polyether demulsification agent primary election, polyether demulsification agent yh-1, wd-1, yh-2, sd-309 is selected to be used as examination
Polyether demulsification agent is prepared into embodiment institute with oil removing water purification agent, allyl chloride, gemini surfactant and clear water respectively
Demulsification water purification agent SR-DNP, SR-SR1, SR-SR2, the SR-8A stated.The breaking of this 4 kinds demulsification water purification agents is tested at 10 DEG C
Can, test data is shown in Table 4.
The demulsification experimental data of 4 kinds of demulsification water purification agents at 4,10 DEG C of table
From data shown in table 4 can be seen that demulsification water purification agent SR-DNP comprehensive performance better than demulsification water purification agent SR-SR1,
SR-SR2,SR-8A.After static 20h, water phase clarity sequence are as follows: SR-DNP > SR-SR1 > SR-8A > SR-SR2.
(4) 5 DEG C of system formulations determine
Referring to the test method of 10 DEG C of systems, water purification agent SR-DNP, SR-SR1, SR-SR2, SR-8A are at 5 DEG C for test demulsification
Demulsification performance, test data is shown in Table 5.
The demulsification experimental data of 4 kinds of demulsification water purification agents at 5,5 DEG C of table
From data shown in table 5 can be seen that demulsification water purification agent SR-DNP comprehensive performance better than demulsification water purification agent SR-SR1,
SR-SR2,SR-8A.After static 20h, water phase clarity sequence are as follows: SR-DNP > SR-SR1 > SR-8A > SR-SR2.
The principal element of condensate emulsification is the emulgate ingredient in foam discharging agent, and the impurity group in emulsion can play firm cream
That changes liquid does use.Condensate dewatering speed is influenced by pharmacy type and temperature, is mainly due to point of medicament at 5 DEG C
Under the conditions of dissipating property lower than 10 DEG C.The neutralization of water purification component and emulsifier in medicament is more crucial, therefore the medicine of condensate demulsifier
Agent selects specific aim stronger.Comprehensive rate of water loss, oil content in water, the factors such as economic benefit, the present embodiment breaker system exist
Demulsification water purification agent SR-DNP may be selected at 10 DEG C and 5 DEG C, dosage is respectively in 700ppm and 1000ppm.
Embodiment 4, the test of water phase oil-containing
Referring to method as described in example 2, test demulsification water purification agent SR-DNP, SR-SR1, SR-SR2, SR-8A is right at 5 DEG C
The demulsification of condensation oil emulsion, measurement water phase oil-containing test, the measurement result of each index are shown in Table 6.
The demulsification testing index of 4 kinds of demulsification water purification agents at 6,5 DEG C of table
| Index | SR-DNP | SR-SR1 | SR-SR1 | SR-8A |
| It is demulsified the sedimentation time | 20h | 20h | 20h | 20h |
| Water phase oil content mg/l | 44.32 | 46.10 | 42.95 | 38.77 |
| Middle layer oil content mg/g | 3.87 | 4.56 | 3.64 | 3.20 |
| The miscellaneous content mg/g of middle layer machine | 226 | 321 | 208 | 201 |
| Middle layer FeS content mg/g | 232 | 314 | 201 | 189 |
As seen from Table 6, demulsification water purification agent SR-DNP, SR-SR1, SR-SR2, SR-8A is provided with condensation oil emulsion
Efficient demulsification water purification ability, can rapidly be demulsified under the conditions of low temperature (5 DEG C), realize water-oil separating, oil-containing, middle layer in water
Oil content very little, and it is transparent to deviate from clarification of water.
Embodiment 5, long celebrating four factory's field application of gas production, by taking 41-3 gas gathering station of reviving as an example
(1) live basic condition
Annual 5-8 month is the peak period of long celebrating four factory of gas production bubble mining gas operation, with the extension of mining time, respectively
The condensate emulsification problem of gas collection website is got worse, and outstanding behaviours is that condensation oil emulsion water-oil separating is slow, oil-containing in water
Height influences the sewage treatment plant and condensate recycle section in downstream.
The operation of 41-3 gas gathering station revived in 2005, outer 350,000 sides of displacement/day produces 90~110 side of liquid daily, wherein condensate
30~45 sides or so.Since in the May, 2016 after bubble row operation, production fluid grease is regardless of causing sewage roping to exist great
Problem becomes one of the greatest problem for influencing gas gathering station production.
(2) indoor demulsification evaluation
The sample of collection site different time selects demulsification water purification agent SR-DNP to carry out demulsification purified treatment to each sample,
Indoor demulsification processing result is shown in Table 7.
Table 7, the indoor demulsification processing result for the water purification agent SR-DNP that is demulsified
As seen from Table 7, demulsification water purification agent SR-DNP is suitble to the condensation oil emulsion processing of 41-3 gas gathering station, Soviet Union, after processing
Water quality clarification, what oil content can achieve downstream water processing section receives standard.
(3) field application
The field test since on June 15th, 2016, demulsification water purification agent SR-DNP inject dirt by way of manually filling
It in water buried tank, is mixed by the disturbance of water flow, in infall process, by manually detecting water layer, emulsion layer and oil reservoir.It is existing
Field applies 3 days, and test data is shown in Table 8.
Table 8, the field application determination data for the water purification agent SR-DNP that is demulsified
The determination data of table 8 substantially with Lab-evaluation data (table 7) coincide, by 20 hours sedimentation after, water-oil separating,
Intermediate laminate is reduced to 2~5cm, is conducive to tank car roping, while water phase is clarified, and sewage treatment plant can be directly entered.
Further narration is done to the present invention above in conjunction with embodiment, but present invention is not limited to the embodiments described above,
Within the knowledge of one of ordinary skill in the art, it can also make without departing from the purpose of the present invention
Various change.
Claims (7)
1. a kind of condensate demulsification water purification agent, for the water-oil separating of condensation oil emulsion, preparing component includes cation
Polyethers demulsifier, water purification degreaser, allyl chloride, gemini surfactant and water, by weight percentage, each group
The inventory accounting divided are as follows:
The condensate with demulsification water purification agent the preparation method comprises the following steps: by formula accounting accurately weigh each component；In reaction kettle
Middle addition alkaline solution is slowly added to water purification degreaser, cation polyether class demulsifier by catalyst of palladium acetate, opens simultaneously
Stirring, makes it be uniformly dispersed, is warming up to 40 DEG C, and allyl chloride is instilled in reaction kettle, is warming up to 80 DEG C, and Shuangzi is added in stirring
Quaternary surfactant stirs evenly to obtain the condensate demulsification water purification agent.
2. according to claim 1 condensate with demulsification water purification agent, which is characterized in that the cation polyether class demulsifier by
After amidation process occurs for carboxylic acid and hydroxylamine, then obtain through quaternization reaction.
3. condensate oil demulsification water purification agent according to claim 2, which is characterized in that the cation polyether class demulsifier is selected
Any one of polyethers demulsifier wd-1, wd-299, sd-309, yh-1, yh-2.
4. condensate demulsification water purification agent according to claim 1, which is characterized in that the water purification degreaser is alkyl chlorination
Ammonium polymer.
5. condensate demulsification water purification agent according to claim 4, which is characterized in that the water purification degreaser selects double 12
Alkyl dimethyl ammonium chloride polymer.
6. condensate demulsification water purification agent according to claim 1, which is characterized in that the gemini surfactant
Select bromination dimethyl dodecyl base hexadecyldimethyl benzyl ammonium.
7. condensate demulsification water purification agent according to claim 1, which is characterized in that the alkaline solution is that mass fraction is
0.1% potassium hydroxide or sodium hydrate aqueous solution.
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| CN110818208B (en) * | 2019-10-31 | 2022-02-25 | 麦王环境技术股份有限公司 | Oil-water-solid three-phase separation cleaning agent for oily sludge and preparation method thereof |
| CN114634824B (en) * | 2022-04-02 | 2023-10-03 | 四川锦盛油田技术服务有限公司 | Light hydrocarbon recovery promoter for drainage and gas production and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045898A (en) * | 1996-08-05 | 1998-02-17 | Kao Corp | Cationic fluorine-containing polyether and its production |
| WO2014163013A1 (en) * | 2013-04-01 | 2014-10-09 | 株式会社Adeka | Flame-retardant agent composition, flame-retardant fiber treated with flame-retardant agent composition, and method for increasing amount of flame-retardant component adhered onto fibers using said composition |
| CN105504163A (en) * | 2016-01-20 | 2016-04-20 | 广东溢达纺织有限公司 | Cationic flocculant and preparation method thereof |
| CN106044940A (en) * | 2016-05-16 | 2016-10-26 | 中国石油化工股份有限公司 | Demulsification water purifying agent for combination-flooding produced fluid and preparation method for demulsification water purifying agent |
-
2017
- 2017-07-26 CN CN201710616672.9A patent/CN107459999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045898A (en) * | 1996-08-05 | 1998-02-17 | Kao Corp | Cationic fluorine-containing polyether and its production |
| WO2014163013A1 (en) * | 2013-04-01 | 2014-10-09 | 株式会社Adeka | Flame-retardant agent composition, flame-retardant fiber treated with flame-retardant agent composition, and method for increasing amount of flame-retardant component adhered onto fibers using said composition |
| CN105504163A (en) * | 2016-01-20 | 2016-04-20 | 广东溢达纺织有限公司 | Cationic flocculant and preparation method thereof |
| CN106044940A (en) * | 2016-05-16 | 2016-10-26 | 中国石油化工股份有限公司 | Demulsification water purifying agent for combination-flooding produced fluid and preparation method for demulsification water purifying agent |
Non-Patent Citations (1)
| Title |
|---|
| 阳离子型破乳剂组分C的合成及配方优选;娄燕敏等;《大庆石油学院学报》;20031231;第27卷(第04期);第111-113，126页 |
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