CN104974730B - A kind of foam discharging agent and the preparation method and application thereof of high temperature resistance, high salinity - Google Patents
A kind of foam discharging agent and the preparation method and application thereof of high temperature resistance, high salinity Download PDFInfo
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- 239000006260 foam Substances 0.000 title claims abstract description 71
- 238000007599 discharging Methods 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 29
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 11
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 8
- 125000002091 cationic group Chemical group 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 150000001450 anions Chemical class 0.000 claims abstract 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 235000020681 well water Nutrition 0.000 claims description 3
- 239000002349 well water Substances 0.000 claims description 3
- 238000002242 deionisation method Methods 0.000 claims 1
- 125000000373 fatty alcohol group Chemical group 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- -1 sodium olefin sulfonates Chemical class 0.000 abstract description 4
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 abstract description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011734 sodium Substances 0.000 abstract description 2
- 229910052708 sodium Inorganic materials 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- QDYLMAYUEZBUFO-UHFFFAOYSA-N cetalkonium chloride Chemical compound CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 QDYLMAYUEZBUFO-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 2
- QMDUPVPMPVZZGK-UHFFFAOYSA-N n,n-dimethyloctadecan-1-amine;hydrobromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[NH+](C)C QMDUPVPMPVZZGK-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000006265 aqueous foam Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention provides a kind of high temperature resistance, the foam discharging agents and the preparation method and application thereof of high salinity.By percentage to the quality, which includes 15 40% anion surfactants, 5 15% cationic surfactants, and surplus is deionized water；Wherein：The anion surfactant includes fatty alcohol polyoxyethylene ether sulfate, α sodium olefin sulfonates or lauryl sodium sulfate；The cationic surfactant includes Cationic Gemini Surfactant.The present invention also provides the methods for preparing above-mentioned foam discharging agent：Anion surfactant and cationic surfactant are added at one time in reaction vessel, deionized water is added, obtains mixed solution；Above-mentioned mixed solution is heated to 50 60 DEG C, stirring obtains foam discharging agent.Foam discharging agent provided by the invention can solve the problem of the foaming properties rapid drawdown when temperature and salinity increase of existing foam discharging agent, can be used for the water drainage-gas recovery technology of deep layer high temperature, high salinity gas well.
Description
Technical field
The present invention relates to a kind of high temperature resistance, the foam discharging agents and the preparation method and application thereof of high salinity, and it is natural to belong to oil
Gas exploits field.
Background technology
With going deep into for gas field development, most gas fields have been enter into the middle and later periods of exploitation, since strata pressure constantly declines, lead
Edge water propelling and bottom water is caused to rise, gas well water breakthrough Hou Bowl mouth rapid pressure drops, since fluid-carrying capability decline causes shaft bottom hydrops,
It will lead to the Qi Bowl underproduction even stop-spraying.For this present situation, it is necessary to carry out drainage gas recovery in time, solve gas well drain and ask
Topic.Wherein, with its effect, the reasons such as good, easy for construction and relatively inexpensive become water drainage-gas recovery technology to foam drainage gas recovery technique
It is preferred.Foam drainage gas recovery technique is by injecting in the insufficient producing well of fluid-carrying capability, being allowed to and shaft bottom hydrops by foam discharging agent
The resistance aqueous foam that a large amount of low-density are mixed and generated under the agitation of air-flow is carried to ground from shaft bottom with air-flow, improves gas well
Fluid-carrying capability, to achieve the purpose that volume increase, stable yields and extend its flush stage.The performance of foam discharging agent is adopted as foaming water discharge
The key of gas technology, i.e., under certain external condition such as temperature, salinity, foam discharging agent should have higher foamability, steady
Bubble ability and fluid-carrying capability.
Domestic existing foam discharging agent applies in general to 90 DEG C or less and salinity is less than the stratum of 100000ppm, with
The raising of temperature and salinity, foamability and stability substantially reduce, and part foam discharging agent does not rise even when higher than 120 DEG C
Bubble, to hinder application of the foam drainage gas recovery technique in high temperature, high salinity water-producing gas well.The main component of foam discharging agent
It is surfactant, at present for the research of foam discharging agent mainly by being compounded between Surfactant, however, these
Compounding is mostly focused between anion surfactant and anion surfactant, anion surfactant and both sexes from
Between sub- surfactant, and for the very understatement of the research between anion surfactant and cationic surfactant
Road.
Invention content
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of foam discharging agent, the foam discharging agent is in temperature range
Under conditions of being 50000-250000ppm for 100-160 DEG C, salinity, there is higher initial bubbles volume V0, half foam life period
t1/2And liquid rate is taken, it can solve the problems, such as the water pumping gas production of high temperature, high salinity water-producing gas well.
In order to achieve the above objectives, the present invention provides a kind of foam discharging agents, and by percentage to the quality, which includes 15-
40% anion surfactant, 5-15% cationic surfactants, surplus are deionized water；Wherein：
The anion surfactant includes fatty alcohol polyoxyethylene ether sulfate, α-sodium olefin sulfonate or dodecyl
Sodium sulphate；
The cationic surfactant includes Cationic Gemini Surfactant.
Research in the prior art between anion surfactant and cationic surfactant is fresh few, this is because
Anion surfactant is easy to generate precipitation when compounding with cationic surfactant, cannot be answered to lose effectiveness
With but the present invention creatively compounds anion surfactant and cationic surfactant, makes between the two
Special synergistic effect is generated, in the microcosmic upper good position adaptability of generation, special synergistic effect is generated, enhances vacuolar membrane
Compactness significantly enhances the performance of foam discharging agent.
In above-mentioned foam discharging agent, it is preferable that the fatty alcohol polyoxyethylene ether sulfate includes fatty alcohol polyoxyethylene ether
Sodium sulphate (AES), AES have preferable foaming characteristic and water solubility.
In above-mentioned foam discharging agent, it is preferable that the molecular structure of the Cationic Gemini Surfactant is
In formula, m=12-18.
There is Cationic Gemini Surfactant provided by the invention pectinate texture, such special construction to be conducive to it
Finer and close arrangement is formed in gas-liquid interface, can effectively prevent the coalescence and disproportionation of bubble, it is steady to reach enhancing foam
Qualitative effect.
The present invention also provides a kind of methods preparing above-mentioned foam discharging agent comprising following steps：
Anion surfactant and cationic surfactant are added at one time in reaction vessel, then be added go from
Sub- water, obtains mixed solution；
Above-mentioned mixed solution is heated to 50-60 DEG C, stirring obtains foam discharging agent.
In the above-mentioned methods, it is preferable that the cationic surfactant is prepared by following steps：
2-2.5g alkyl dimethyls ammonium bromide and excessive 1,2- Bromofumes are dissolved in 50-70mL absolute ethyl alcohols, in 50-
Flow back 36-48h at 80 DEG C, obtains mixture；Said mixture is evaporated at 37 DEG C, obtains cationic surfactant；More
Preferably, the dosage of 1, the 2- Bromofumes is 4-8mL.
In the above-mentioned methods, it is preferable that the alkyl carbon number in the alkyl dimethyl ammonium bromide is C12-C18.
In the above-mentioned methods, it is preferable that the mixing speed is 200-400r/min, mixing time 20-25min.
Foam discharging agent provided by the invention can be applied in water-producing gas well water pumping gas production.
In above application, it is preferable that the temperature of mineralized water is 100-160 DEG C in the water-producing gas well.
In above application, it is preferable that the salinity of mineralized water is 50000-250000ppm in the water-producing gas well.
Beneficial effects of the present invention：
1) technical solution provided by the invention creatively by anion surfactant and cationic surfactant into
Row compounding, makes to produce special synergistic effect between the two, significantly enhances the performance of foam discharging agent；
2) foam discharging agent provided by the invention is in the condition that temperature is 100-160 DEG C, salinity is 50000-250000ppm
Under, there is higher initial bubbles volume V0, half foam life period t1/2And take liquid rate；Existing foam discharging agent can be solved in temperature and mine
When change degree increases, the problem of foaming properties rapid drawdown, it can be used for the water drainage-gas recovery technology of deep layer high temperature, high salinity gas well；
3) foam discharging agent composition provided by the invention is simple, and it is convenient to prepare, cheap, nontoxic low irritant.
Specific implementation mode
In order to which technical characteristic, purpose and the advantageous effect to the present invention are more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but should not be understood as to the present invention can practical range restriction.
Embodiment 1
Present embodiments provide a kind of high temperature resistance, high salinity foam discharging agent and preparation method thereof.The preparation method includes
Following steps：
1) Gemini cationic surfactants are prepared
Respectively by 2g Dodecydimethylammonium bronides, dodecyldimethylamine base ammonium bromide, hexadecyldimethyl benzyl ammonium bromination
Ammonium, octadecyldimethyl ammonium bromide are dissolved in absolute ethyl alcohol with 4mL glycol dibromides (excessive to ensure to react abundant completion)
In (50mL), flow back 48h at 80 DEG C or so.Mixture after reaction is spin-dried on Rotary Evaporators 37 DEG C, respectively obtains m
=12,14,16,18 Gemini cationic surfactants；The structure of the Gemini cationic surfactants such as I institute of formula
Show
Wherein, Gemini cationic surfactants are positive by the Gemini of above-mentioned m=12,14,16,18 in the present embodiment
Ionic surface active agent is 1 according to mass ratio:1:3:Made of 1 mixes；
2) foam discharging agent is prepared
By percentage to the quality, the raw material composition of foam discharging agent includes in the present embodiment：25% fatty alcohol polyoxyethylene ether sulphur
Hydrochlorate (AES), 8%Gemini cationic surfactants, surplus are deionized water；
According to above-mentioned dosage, sodium sulfate of polyethenoxy ether of fatty alcohol and Gemini cationic surfactants are disposably added
Enter in stainless steel cauldron, add deionized water, this mixed solution is heated to 55 DEG C, is stirred at 200-400r/min
20min obtains foam discharging agent GWJ-1.
Embodiment 2
The present embodiment provides the foam discharging agents and preparation method thereof for having given a kind of high temperature resistance, high salinity.The preparation method packet
Include following steps：
1) Gemini cationic surfactants are prepared
Respectively by 2g Dodecydimethylammonium bronides, dodecyldimethylamine base ammonium bromide, hexadecyldimethyl benzyl ammonium bromination
Ammonium, octadecyldimethyl ammonium bromide are dissolved in absolute ethyl alcohol with 4mL glycol dibromides (excessive to ensure to react abundant completion)
In (50mL), flow back 48h at 80 DEG C or so.Mixture after reaction is spin-dried on Rotary Evaporators 37 DEG C, respectively obtains m
=12,14,16,18 Gemini cationic surfactants；The structure of the Gemini cationic surfactants such as I institute of formula
Show
Wherein, Gemini cationic surfactants are positive by the Gemini of above-mentioned m=12,14,16,18 in the present embodiment
Ionic surface active agent is 1 according to mass ratio:1:3:1 mixes；
2) foam discharging agent is prepared
By percentage to the quality, the raw material composition of foam discharging agent includes in the present embodiment：35% fatty alcohol polyoxyethylene ether sulphur
Hydrochlorate (AES), 13%Gemini cationic surfactants, surplus are deionized water；
According to above-mentioned dosage, sodium sulfate of polyethenoxy ether of fatty alcohol and Gemini cationic surfactants are disposably added
Enter in stainless steel cauldron, add deionized water, this mixed solution is heated to 55 DEG C, is stirred at 200-400r/min
20min obtains foam discharging agent GWJ-2.
Embodiment 3
The foam discharging agent GWJ-1 that the present embodiment is provided for above-described embodiment 1 is first under the conditions of different temperatures and salinity
Beginning foaming volume V0, half foam life period t1/2And throughput when being 5L/min the liquid carry over of 15min be tested, and in phase
It is compared with the performance with certain domestic commercially available foam discharging agent 1 and 2 under test condition.
Instrument used in test process is that (the high temperature and pressure foam evaluations instrument is the patent No. to high temperature and pressure foam evaluations instrument
High temperature and pressure foam evaluations instrument recorded in the utility model patent of ZL201120400940.1, notification number CN202228059U)；
The mineralized water of test is after being analyzed according to the water of live natural gas well output, using NaCl, CaCl2、MgCl2、KCl、
Na2SO4、NaHCO3It is prepared.
It is described that the specific test method is as follows：
1) foaming characteristic of foam discharging agent is tested with foam stability：
A, temperature in evaluating apparatus is first risen into nominative testing temperature；
B, the foam discharging agent solution that 200mL mass concentrations are 3% (by the densimeter of surfactant) is pumped into evaluation dress again
It sets；
C, pressure rises to 1MPa (nitrogen), records initial bubbles volume and half foam life period.
2) fluidity of taking of foam discharging agent is tested：
A, temperature in evaluating apparatus is first risen into nominative testing temperature；
B, the foam discharging agent solution that 200mL mass concentrations are 3% (by the densimeter of surfactant) is pumped into evaluation dress again
It sets；
C, nitrogen is pumped into the speed of 5L/min in evaluating apparatus, collects and record the liquid carry over of 15min.
Table 1：The performance (salinity 250000ppm) of foam discharging agent (GWJ-1) under different temperatures
Table 2：The performance (salinity 250000ppm) of certain domestic commercially available foam discharging agent 1
Table 3：The performance (salinity 250000ppm) of certain domestic commercially available foam discharging agent 2
Table 4：The performance of foam discharging agent (GWJ-1) under different salinities (temperature is 130 DEG C)
Table 5：The performance of certain domestic commercially available foam discharging agent 1 (temperature is 130 DEG C)
Table 6：The performance of certain domestic commercially available foam discharging agent 2 (temperature is 130 DEG C)
Specific test result is as shown in table 1-6, wherein table 1 and the foam discharging agent GWJ-1 that respectively embodiment 1 provides of table 4 exist
The performance test results under the conditions of different temperatures and salinity；Table 2 and 5 is respectively certain domestic commercially available foam discharging agent 1 in different temperatures
With the performance test results under the conditions of salinity；Table 3 and 6 is respectively certain domestic commercially available foam discharging agent 2 in different temperatures and salinity
Under the conditions of the performance test results；The above-mentioned country's certain commercially available foam discharging agent 1 and 2 is provided by Chengdu Fuji Science and Technology Co., Ltd.
's.
Foam discharging agent provided by the invention is can be seen that temperature is 100-160 DEG C, salinity is from above-mentioned test result
There is higher foaming characteristic, foam stability within the scope of 50000-250000ppm and take liquid rate.
Claims (6)
1. a kind of foam discharging agent, by percentage to the quality, the foam discharging agent include 15-40% anion surfactants, 5-15% sun
Ionic surface active agent, surplus are deionized water；Wherein：
The anion surfactant is fatty alcohol polyoxyethylene ether sulfate；The fatty alcohol polyoxyethylene ether sulfate packet
Include sodium sulfate of polyethenoxy ether of fatty alcohol；
The cationic surfactant includes Cationic Gemini Surfactant；The Cationic Gemini Surfactant
Molecular structure be
And the Gemini cationic surfactants by m=12,14,16,18 Gemini cationic surfactants according to
Mass ratio is 1:1:3:1 mixes.
2. a kind of method preparing foam discharging agent described in claim 1 comprising following steps：
Anion surfactant and cationic surfactant are added at one time in reaction vessel, deionization is then added
Water obtains mixed solution；
Above-mentioned mixed solution is heated to 50-60 DEG C, stirring obtains foam discharging agent.
3. according to the method described in claim 2, wherein：The speed of the stirring is 200-400r/min, and the time of stirring is
20-25min。
4. application of the foam discharging agent described in claim 1 in water-producing gas well water pumping gas production.
5. application according to claim 4, wherein：The temperature of mineralized water is 100-160 DEG C in the water-producing gas well.
6. application according to claim 4 or 5, wherein：The salinity of mineralized water is 50000- in the water-producing gas well
250000ppm。
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| CN201510321512.2A CN104974730B (en) | 2015-06-12 | 2015-06-12 | A kind of foam discharging agent and the preparation method and application thereof of high temperature resistance, high salinity |
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| CN105199701B (en) * | 2015-10-21 | 2018-10-02 | 西安长庆化工集团有限公司 | The foam discharging agent and preparation method thereof of high temperature resistance, anti-high salinity and condensate oil |
| CN105199702B (en) * | 2015-10-21 | 2018-07-06 | 西安长庆化工集团有限公司 | A kind of foam discharging agent and preparation method thereof of condensate oil, methanol |
| CN108251091A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气股份有限公司 | A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof |
| CN107400505B (en) * | 2017-07-06 | 2020-11-24 | 中国石油天然气股份有限公司 | High-temperature solid foam scrubbing agent and preparation method thereof |
| CN109679621B (en) * | 2017-10-18 | 2021-05-11 | 中国石油化工股份有限公司 | High-temperature-resistant high-salt solid foam drainage agent, and preparation method and application thereof |
| CN109679608B (en) * | 2017-10-18 | 2021-02-09 | 中国石油化工股份有限公司 | High-temperature-resistant acid-resistant foam drainage agent, preparation method and application |
| CN109679607B (en) * | 2017-10-18 | 2021-05-11 | 中国石油化工股份有限公司 | Method for water drainage and gas production by adopting high-temperature-resistant high-salt foam drainage agent |
| CN109679614B (en) * | 2017-10-18 | 2021-05-11 | 中国石油化工股份有限公司 | Method for water drainage and gas recovery by adopting high-temperature-resistant acid-resistant solid foam drainage agent |
| CN110317588A (en) * | 2018-03-29 | 2019-10-11 | 中国石油化工股份有限公司 | A kind of cationic surfactant and preparation method thereof and foaming agent and its application |
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