CN111088009A - Reinforced oil-resistant foam drainage agent composition, preparation method thereof and drainage and gas production method - Google Patents
Reinforced oil-resistant foam drainage agent composition, preparation method thereof and drainage and gas production method Download PDFInfo
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- CN111088009A CN111088009A CN201811235041.3A CN201811235041A CN111088009A CN 111088009 A CN111088009 A CN 111088009A CN 201811235041 A CN201811235041 A CN 201811235041A CN 111088009 A CN111088009 A CN 111088009A
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- 239000006260 foam Substances 0.000 title claims abstract description 107
- 239000013051 drainage agent Substances 0.000 title claims abstract description 64
- 239000000203 mixture Substances 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 87
- 229920000570 polyether Polymers 0.000 claims abstract description 87
- 150000003973 alkyl amines Chemical class 0.000 claims abstract description 43
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 claims abstract description 34
- 229940077388 benzenesulfonate Drugs 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 28
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 17
- 150000001412 amines Chemical class 0.000 claims abstract description 16
- 238000005728 strengthening Methods 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 52
- 239000007789 gas Substances 0.000 claims description 41
- -1 ammonium ions Chemical class 0.000 claims description 30
- 235000019270 ammonium chloride Nutrition 0.000 claims description 26
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 10
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 9
- 229940092714 benzenesulfonic acid Drugs 0.000 claims description 9
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 7
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 7
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 7
- 239000001099 ammonium carbonate Substances 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012758 reinforcing additive Substances 0.000 claims description 4
- 125000003277 amino group Chemical group 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- 235000013877 carbamide Nutrition 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 38
- 239000003795 chemical substances by application Substances 0.000 abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 238000007599 discharging Methods 0.000 abstract description 15
- 230000003014 reinforcing effect Effects 0.000 abstract description 11
- 238000011161 development Methods 0.000 abstract description 5
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 70
- 239000000243 solution Substances 0.000 description 37
- 235000010288 sodium nitrite Nutrition 0.000 description 35
- 230000033558 biomineral tissue development Effects 0.000 description 30
- 239000007864 aqueous solution Substances 0.000 description 29
- 230000000052 comparative effect Effects 0.000 description 21
- 239000003921 oil Substances 0.000 description 21
- 239000004094 surface-active agent Substances 0.000 description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 13
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 9
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 7
- 239000011780 sodium chloride Substances 0.000 description 7
- 238000005187 foaming Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 206010012442 Dermatitis contact Diseases 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 240000003377 Shepherdia canadensis Species 0.000 description 1
- 235000018324 Shepherdia canadensis Nutrition 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000006265 aqueous foam Substances 0.000 description 1
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 229940125773 compound 10 Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011227 reinforcement additive Substances 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 150000007949 saponins Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
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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
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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)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention relates to a reinforced oil-resistant foam drainage agent composition, a preparation method thereof and a gas production method. The method mainly solves the problems that accumulated liquid at the bottom of a well is difficult to remove efficiently, the yield of the gas well is reduced, and even the blowout of the gas well is stopped due to the reduction of gas flow and the overhigh content of condensate oil in the later development period of the low-pressure condensate oil gas well. The invention discloses a foam water discharging agent composition which comprises the following components in parts by weight: (1)1 part of alkylamine polyether benzene sulfonate; (2) 0.1-50 parts of alkyl polyether amine oxide; (3) 0.1-100 parts of a strengthening auxiliary A; (4) the technical scheme of 0.1-100 parts of the reinforcing auxiliary agent B well solves the problem and can be used in the drainage and gas production industry of gas wells.
Description
Technical Field
The invention relates to a reinforced oil-resistant foam drainage agent composition and a preparation method thereof, in particular to a reinforced oil-resistant foam drainage agent composition for a low-pressure condensate-containing oil-gas well and a preparation method thereof.
Background
As the gas field is exploited in the later development stage, the gas production pressure gradually decreases, the water production gas wells increase year by year, and the liquid accumulation in the shaft becomes serious day by day, so that the gas well yield continuously decreases, even the well flooding phenomenon occurs, and the key problem of restricting the normal production of the gas wells is solved. Foam drainage gas production is a drainage gas production technology which is rapidly developed at home and abroad in recent years, and has the advantages of simple equipment, convenience in construction, low cost, wide applicable well depth range, no influence on normal production of gas wells and the like. Foam drainage is to inject foam drainage agent into a well through an oil pipe or an oil casing ring, and foam with certain stability is generated under the stirring of airflow. The liquid phase slipped and deposited in the pipe is changed into foam, the relative density of fluid at the lower part in the pipe is changed, and the continuously produced gas phase displacement foam flows out of the shaft, so that the accumulated liquid in the shaft is discharged, and the purposes of water drainage and gas production are achieved.
However, most of the foam drainage agents currently used in the field need to be foamed by means of agitation of the gas itself at the bottom of the well and the addition of a surfactant, so as to carry the liquid out of the gas well. With the development of gas fields, more and more gas wells are in the middle and later development stages, the gas production rate of the gas wells is seriously reduced, the liquid accumulation is increased, and the liquid carrying capacity of the gas wells is poor. In this case, the conventional foam drainage agent tends to cause difficulty in foam generation and a reduction in drainage performance due to insufficient air supply pressure. And because the foam has oil sensitivity, after the crude oil contacts the foam, the crude oil spreads or emulsifies in gas-liquid and liquid films and enters the foam structure under the action of external force and interfacial tension, so that the stability of the foam is reduced after the foam contacts the oil. Therefore, there is a great market need for an enhanced oil resistant foam drainage agent composition suitable for use in low producing gas wells.
Among the existing foam drainage agents disclosed, patent CN 104498013B discloses a foam drainage agent using sodium bicarbonate and tartaric acid as gas generating agents, and mixture of soapberry saponin, sodium fatty acid methyl ester sulfonate and hydroxy ethylene diphosphonic acid as surfactants. CN103867170A discloses a corrosion inhibition foam discharging rod which uses carbohydrazide, ethylenediamine or formamide and sodium hypochlorite, nitrous acid metal salt or ammonium bicarbonate as a gas generating agent and uses anion or nonionic macromolecules as a surfactant. The above two patents use large amount of gas producing agent, put into gas well and produce large amount of gas in the liquid accumulation in short time to provide drainage power and realize drainage. However, the method uses a large amount of medicament, and the discharged liquid is not properly treated, so that the environmental pollution can be caused. CN104531122A discloses an oil-resistant and mineralization-resistant solid foam scrubbing agent, which comprises AES, OP-10, polyacrylamide, thiourea, paraffin and the like, has good liquid carrying capacity in various water types, but has an oil-resistant content of only 10 percent, and can obtain good effect only by using a large amount of air in the using process.
Disclosure of Invention
One of the technical problems to be solved by the invention is that the foam generating capacity of the foam discharging agent is insufficient and the liquid carrying efficiency is low for the gas well with low gas production rate in the middle and later stages in the prior art, the problems of large using amount of the traditional medicament, high cost and difficult treatment of discharged liquid in the existing self-generated foam discharging method in the gas well development process in the prior art are solved, and the reinforced oil-resistant foam discharging agent composition is provided for the problems of poor oil resistance of the traditional foam discharging agent and easy defoaming of foam when oil is used in the high oil-containing condensate oil gas reservoir.
The second technical problem to be solved by the present invention is to provide a preparation method of the reinforced oil-resistant foam drainage composition suitable for low-pressure high-condensation oil and gas reservoirs, corresponding to the solution of the first technical problem.
The third technical problem to be solved by the present invention is to provide a method for drainage and gas production, which uses the foam drainage agent composition described above for solving the first technical problem or the foam drainage agent composition prepared by the preparation method described above for solving the second technical problem.
In order to solve one of the above technical problems, the technical scheme adopted by the invention is as follows: the reinforced oil-resistant foam drainage agent composition for drainage and gas recovery comprises the following components in parts by mass:
(1)1 part of alkylamine polyether benzene sulfonic acid/carboxylate;
(2) 0.1-50 parts of alkyl polyether amine oxide;
(3) 0.1-100 parts of a strengthening auxiliary A;
(4) 0.1-100 parts of a strengthening auxiliary agent B.
In the above technical solution, the general molecular formula of the alkylamine polyether benzene sulfonic acid/carboxylate is preferably:
wherein R' is C8～C20Any one of the alkyl groups of (a); m, n, p and q are any number of 0-20 independently, and m + n is more than or equal to 1; more preferably, m + p is an arbitrary number of 1 to 5, and n + q is an arbitrary number of 5 to 15; x and Y are independently selected from sulfonate or carboxylate; m1And M2Independently selected from the group consisting of cations or cationic groups which render formula (I) electrically neutral, more preferably M1And M2Independently and optionally, at least one of an alkali metal ion or an ammonium ion.
In the above technical solution, the molecular general formula of the alkyl polyether amine oxide is preferably:
wherein R is1Is C10～C26Fatty radical or C of10～C26An aromatic group of (a); y is 0-20, and z is 0-60; r2Is selected from C1～C4An alkylene group of (a); r3、R4Is independently selected from C1～C5Any one of the alkyl group and the substituted alkyl group of (1).
In the above technical scheme, R1Preferably C10～C26The aliphatic group or aromatic group of (2) may contain a group such as an acyl group, a carbonyl group, an ether group, a hydroxyl group, etc., and may contain a saturated carbon chain or an unsaturated carbon chain, and R is preferably R1Is the preferred embodiment of C10～C20Alkyl of (C)10～C20The alkylbenzene of (1); r2Preferably C2H4Or C3H6Z is excellentAnd selecting more than 0.
In the above technical solution, the strengthening auxiliary a is selected from a water-soluble amino group-containing compound, more preferably a quaternary ammonium salt or an organic amine, and more preferably at least one of ammonium chloride, ammonium bicarbonate, urea, and biuret.
In the above technical solution, the strengthening auxiliary B is preferably a water-soluble nitrogen-oxygen-containing compound, more preferably a nitrite, and most preferably sodium nitrite.
In order to solve the second technical problem, the invention adopts the technical scheme that: the method for preparing the foam water discharging agent composition is characterized in that alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, a reinforcing additive A and a reinforcing additive B in the foam water discharging agent composition in any technical scheme for solving the technical problems are uniformly mixed according to the mass parts to obtain the foam water discharging agent composition.
In the above-mentioned technical solution, the foam drainage agent composition may be obtained by uniformly mixing the alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, reinforcing aid a and reinforcing aid B in the above-mentioned amounts, or may be obtained by uniformly mixing the alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, reinforcing aid a and reinforcing aid B in the above-mentioned amounts with water, for example, but not limited to, the alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, reinforcing aid a and reinforcing aid B in the above-mentioned amounts are uniformly mixed with water to obtain the foam drainage agent composition, and in the obtained foam drainage agent composition, the alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, reinforcing aid a and reinforcing aid B are all in the amount, the alkylamine polyether benzene sulfonic acid/carboxylate, alkyl polyether amine oxide, reinforcing aid a and reinforcing aid B are all in the above-mentioned amount, The mass concentration of the strengthening auxiliary A and the strengthening auxiliary B is 0.3-100 g/L; the water may be fresh water, brine, and formation produced water, injected water, and the like.
In order to solve the third technical problem, the technical scheme adopted by the invention is as follows: a method for drainage and gas production, characterized by using the foam drainage agent composition according to any one of the above-mentioned means for solving the technical problems or the foam drainage agent composition produced by the production method according to any one of the above-mentioned means for solving the technical problems.
In the above technical scheme, the drainage gas production method has no special requirements, and a person skilled in the art can use the foam drainage agent composition according to the actual application environment, for example, but not limited to, the drainage gas production method is particularly suitable for low-pressure condensate-containing oil and gas wells, wherein the condensate content is 0-40%.
The foam water discharging agent composition has good compatibility, and can also contain other treating agents commonly used in the field.
The consumption of the strengthening auxiliary agent used by the foam drainage agent composition is far lower than that of the traditional self-generated gas type foam drainage agent, and the cost of the agent is greatly saved. Only a small amount of strengthening auxiliary agent and surfactant are needed to be combined into solution for use, and the operation is simple. The composition continuously releases gas while generating foam, directly energizes a foam drainage system in the foam drainage liquid carrying process, and exerts the effect of a gas generating agent to the maximum extent.
The alkylamine polyether benzene sulfonate and the long-chain polyether nitrogen-containing compound in the foam discharging agent composition contain multi-hydrophilic-group functional groups, particularly, the alkylamine polyether benzene sulfonate contains two sulfonic acid groups, and the multi-hydrophilic-group functional groups can increase the amount of bound water and bound water carried by a foaming agent, enhance the liquid carrying amount of the foam and slow the liquid separation on one hand, and enhance the hydrophilicity of the foaming agent, reduce lipophilicity and increase the oil-water interfacial tension on the other hand, so that the foam discharging agent composition has good oil resistance. In addition, the alkylamine polyether benzene sulfonate and the alkyl polyether amine oxide contain nonionic fragments such as EO and PO, and the salt resistance of the foam scrubbing agent can be obviously improved. Meanwhile, the alkyl polyether amine oxide is an amine oxide, is slightly influenced by the pH value, becomes a nonionic surfactant under neutral or alkaline conditions, shows a cationic type under acidic conditions, has strong foam increasing and stabilizing performance, and has a good synergistic effect with an anionic activator.
By adopting the technical scheme of the invention, the foam performance test is carried out on the foam water discharging agent according to SY/T6465-2000 foamer evaluation method for foam water discharging and gas production, the foaming height is more than 140mm, the condensate oil content is 0-40%, the liquid carrying amount is more than 140mL in 100,000mg/L salinity saline water, and the foam water discharging agent has good salt tolerance, foaming performance, liquid carrying capacity and oil resistance, and obtains better technical effects.
The invention is further illustrated by the following examples.
Drawings
FIG. 1 shows a liquid carrying amount measuring apparatus (the height of a jacketed vessel is 1 m).
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
[ example 1 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 1 g of ammonium chloride and 50 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. And obtaining the foam drainage agent composition FS-1, wherein the structure of the surfactant component is shown in Table 1.
[ example 2 ]
Under normal temperature and pressure, 5 g of alkylamine polyether benzene sulfonate, 50 g of long-chain polyether nitrogen-containing compound, 10 g of ammonium chloride and 80 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. And obtaining the foam drainage agent composition FS-2, wherein the structure of the surfactant component is shown in the table 1.
[ example 3 ]
Under normal temperature and pressure, 50 g of alkylamine polyether benzene sulfonate, 10 g of long-chain polyether nitrogen-containing compound, 50 g of ammonium chloride and 5 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. And obtaining the foam drainage agent composition FS-3, wherein the structure of the surfactant component is shown in Table 1.
[ example 4 ]
Under normal temperature and pressure, 20 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 70 g of ammonium chloride and 2 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. And obtaining the foam drainage agent composition FS-4, wherein the structure of the surfactant component is shown in the table 1.
[ example 5 ]
Under normal temperature and pressure, 1 g of alkylamine polyether benzene sulfonate, 40 g of long-chain polyether nitrogen-containing compound, 100g of ammonium chloride and 30 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. And obtaining the foam drainage agent composition FS-5, wherein the structure of the surfactant component is shown in the table 1.
[ example 6 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 30 g of ammonium chloride and 30 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-6, the structure of the surfactant component of which is shown in the table 1.
[ example 7 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 40 g of ammonium bicarbonate and 40 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-7, the structure of which is shown in the table 1.
[ example 8 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 5 g of ammonium bicarbonate and 50 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-8, the structure of the surfactant component of which is shown in the table 1.
[ example 9 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 50 g of urea and 10 g of sodium nitrite are dissolved in simulated aqueous solution with the degree of mineralization of 100,000mg/L to prepare solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-9, the structure of the surfactant component of which is shown in the table 1.
[ example 10 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 50 g of urea and 30 g of sodium nitrite are dissolved in simulated aqueous solution with the degree of mineralization of 100,000mg/L to prepare solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-10, the structure of the surfactant component of which is shown in the table 1.
[ example 11 ]
Under normal temperature and pressure, 10 g of alkylamine polyether benzene sulfonate, 20 g of long-chain polyether nitrogen-containing compound, 60 g of biuret and 60 g of sodium nitrite are dissolved in a simulated aqueous solution with the mineralization degree of 100,000mg/L to prepare a solution with the concentration of 3000 mg/L. Thus obtaining the foam drainage agent composition FS-11, the structure of the surfactant component of which is shown in the table 1.
[ example 12 ]
With reference to SY/T6465-.
4000mL/min of nitrogen was continuously introduced into aqueous foam drainage agent solutions having condensate volume contents of 0, 20% and 40%, respectively, and the amount of foam carried over a period of 15 minutes was measured, and the results are shown in Table 2. The liquid carrying amount measuring apparatus used is shown in FIG. 1.
[ COMPARATIVE EXAMPLE 1 ]
Using 30 g of alkylamine polyether benzenesulfonate in [ example 1 ], a solution of 3000mg/L FS-S1 was prepared by dissolving 1 g of ammonium chloride and 50 g of sodium nitrite in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding a long-chain polyether nitrogen-containing compound. Referring to the method of [ example 12 ], the liquid carrying capacity of foam drainage was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 2 ]
55 g of alkylamine polyether benzenesulfonate in example 2, 10 g of ammonium chloride and 80 g of sodium nitrite were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding a long-chain polyether nitrogen-containing compound to prepare a solution FS-S2 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of foam drainage was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 3 ]
Using 60 g of alkylamine polyether benzenesulfonate in [ example 3 ], 50 g of ammonium chloride and 5 g of sodium nitrite were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding a long-chain polyether nitrogen-containing compound to prepare 3000mg/L solution FS-S3. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 4 ]
Using 40 g of alkylamine polyether benzenesulfonate in [ example 4 ], without adding a long-chain polyether nitrogen-containing compound, 70 g of ammonium chloride and 2 g of sodium nitrite, a solution of FS-S4 was prepared in a volume of 3000mg/L by dissolving the mixture in a simulated aqueous solution having a degree of mineralization of 100,000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 5 ]
Using 30 g of alkylamine polyether benzenesulfonate in [ example 5 ], without adding a long-chain polyether nitrogen-containing compound, 100g of ammonium chloride and 30 g of sodium nitrite, a solution of FS-S5 was prepared in a volume of 3000mg/L by dissolving the mixture in a simulated aqueous solution having a degree of mineralization of 100,000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 6 ]
Using 40 g of alkylamine polyether benzenesulfonate in [ example 6 ], without adding a long-chain polyether nitrogen-containing compound, 30 g of ammonium chloride and 30 g of sodium nitrite, a solution of FS-S6 was prepared in a volume of 3000mg/L by dissolving the mixture in a simulated aqueous solution having a degree of mineralization of 100,000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 3.
[ COMPARATIVE EXAMPLE 7 ]
30 g of the long-chain polyether nitrogen-containing compound in [ example 1 ] was dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding alkylamine polyether benzenesulfonate, 1 g of ammonium chloride and 50 g of sodium nitrite to prepare a solution FS-S7 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of foam drainage was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 8 ]
55 g of the long-chain polyether nitrogen-containing compound in example 2 was dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding alkylamine polyether benzenesulfonate, 10 g of ammonium chloride and 80 g of sodium nitrite to prepare a solution FS-S8 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of foam drainage was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 9 ]
Using 60 g of the long-chain polyether nitrogen-containing compound [ example 3 ], a solution FS-S9 of 3000mg/L was prepared by dissolving 50 g of ammonium chloride and 5 g of sodium nitrite in a simulated aqueous solution of 100,000mg/L degree of mineralization without adding alkylamine polyether benzenesulfonate. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 10 ]
40 g of the long-chain polyether in [ example 4 ] was used as the nitrogen-containing compound, 70 g of ammonium chloride and 2 g of sodium nitrite were added to the mixture, and the mixture was dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a 3000mg/L solution FS-S10. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 11 ]
Using 30 g of the long-chain polyether nitrogen-containing compound in [ example 5 ], 100g of ammonium chloride and 30 g of sodium nitrite were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding alkylamine polyether benzenesulfonate to prepare a solution FS-S11 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 12 ]
40 g of the long-chain polyether nitrogen-containing compound [ example 6 ] was dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L without adding alkylamine polyether benzenesulfonate, 30 g of ammonium chloride and 30 g of sodium nitrite to prepare a solution FS-S12 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 4.
[ COMPARATIVE EXAMPLE 13 ]
10 g of alkylamine polyether benzenesulfonate, 20 g of long-chain polyether nitrogen-containing compound and 51 g of sodium chloride in [ example 1 ] were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a solution FS-S13 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
[ COMPARATIVE EXAMPLE 14 ]
5 g of alkylamine polyether benzenesulfonate, 50 g of long-chain polyether nitrogen-containing compound and 90 g of sodium chloride in example 2 were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a solution FS-S14 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
[ COMPARATIVE EXAMPLE 15 ]
The alkylamine polyether benzenesulfonate 50 g, long-chain polyether nitrogen-containing compound 10 g and sodium chloride 55 g in [ example 3 ] were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare FS-S15 solution at 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
[ COMPARATIVE EXAMPLE 16 ]
20 g of alkylamine polyether benzenesulfonate, 20 g of long-chain polyether nitrogen-containing compound and 72 g of sodium chloride in [ example 4 ] were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a solution FS-S16 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
[ COMPARATIVE EXAMPLE 17 ]
1 g of alkylamine polyether benzenesulfonate, 40 g of long-chain polyether nitrogen-containing compound and 130 g of sodium chloride in [ example 5 ] were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a solution FS-S17 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
[ COMPARATIVE EXAMPLE 18 ]
10 g of alkylamine polyether benzenesulfonate, 20 g of long-chain polyether nitrogen-containing compound and 60 g of sodium chloride in [ example 6 ] were dissolved in a simulated aqueous solution having a degree of mineralization of 100,000mg/L to prepare a solution FS-S18 of 3000 mg/L. Referring to the method of [ example 12 ], the liquid carrying capacity of the foam drainage agent was measured, and the results are shown in table 5.
Composition component Structure in the examples of Table 1
| Foam drainage agent | R1 | m+p | n+q | X | R1 | y | z | R2 | R3 | R4 | Reinforcement additive (A/B) |
| FS-1 | C16H33 | 2.0 | 12.0 | NH4 | C12H25 | 3 | 7 | C2H4 | CH3 | CH3 | Ammonium chloride/sodium nitrite |
| FS-2 | C20H41 | 3.0 | 15.0 | Na | C16H33 | 10 | 20 | C2H4 | C2H5 | C3H7O | Ammonium chloride/sodium nitrite |
| FS-3 | C8H17 | 5.0 | 5.0 | K | C20H33 | 1 | 30 | C2H4 | C3H7O | C3H7O | Ammonium chloride/sodium nitrite |
| FS-4 | C12H25 | 1.0 | 4.0 | Na | C14H29 | 1 | 1 | C2H4 | C3H7 | C5H11 | Ammonium chloride/sodium nitrite |
| FS-5 | C16H33 | 0.0 | 20.0 | Na | C12H25 | 20 | 1 | C3H6 | C2H5 | CH3 | Ammonium chloride/sodium nitrite |
| FS-6 | C16H33 | 2.0 | 12.0 | NH4 | C12H25 | 0 | 1 | C2H4 | CH3 | CH3 | Ammonium chloride/sodium nitrite |
| FS-7 | C16H33 | 20.0 | 20.0 | K | C12H25 | 3 | 7 | C2H4 | CH3 | CH3 | Ammonium bicarbonate/sodium nitrite |
| FS-8 | C16H33 | 2.0 | 12.0 | NH4 | C12H25 | 3 | 7 | C2H4 | CH3 | CH3 | Ammonium bicarbonate/sodium nitrite |
| FS-9 | C16H33 | 2.0 | 12.0 | NH4 | C26H45 | 3 | 7 | C3H6 | CH3 | CH3 | Urea/sodium nitrite |
| FS-10 | C16H33 | 2.0 | 12.0 | NH4 | C10H21 | 3 | 7 | C2H4 | CH3 | CH3 | Urea/sodium nitrite |
| FS-11 | C16H33 | 2.0 | 12.0 | NH4 | C12H25 | 0 | 0 | C2H4 | C4H9 | CH3 | Biuret/sodium nitrite |
Foam Properties of the foam drainage agent compositions in the examples of Table 2
TABLE 3 foaming Properties of the foam drainage agent compositions of comparative examples 1 to 6
TABLE 4 foaming Properties of the foam drainage agent compositions of comparative examples 7 to 12
TABLE 5 foaming Properties of the foam drainage agent compositions of comparative examples 13 to 18
Claims (10)
1. A foam drainage agent composition comprises the following components in parts by weight:
(1)1 part of alkylamine polyether benzene sulfonic acid/carboxylate;
(2) 0.1-50 parts of alkyl polyether amine oxide;
(3) 0.1-100 parts of a strengthening auxiliary A;
(4) 0.1-100 parts of a strengthening auxiliary agent B.
2. The foam drainage agent composition of claim 1, wherein the alkylamine polyether benzenesulfonate has a general molecular formula represented by formula (I):
in the formula (I), R' is C8～C20Any one of the alkyl groups of (a); m, n, p and q are any number of 0-20, and m + n is more than or equal to 1; x and Y are independently selected from sulfonate or carboxylate; m1And M2Independently selected from the group consisting of cations or cationic groups which render formula (I) electrically neutral, more preferably M1And M2Independently and optionally at least one selected from alkali metal ions or ammonium ions;
the alkyl polyether amine oxide has a general molecular formula shown in formula (II):
in the formula (II), R1Is C10～C26Fatty radical or C of10～C26More preferably said R is1Preferably C10～C20Alkyl of (C)10～C20At least one of the alkylbenzenes of (1); y is 0-20, and z is 0-60; r2Is C1～C4Alkylene of (3), further preferably R2Preferably C2H4Or C3H6；R3、R4Is C1～C5Alkyl of (C)1～C5Any one of the substituted alkyl groups of (1).
3. The foam drainage agent composition according to claim 2, wherein m + p is any number from 1 to 5, and n + q is any number from 5 to 15.
4. The foam drainage agent composition according to claim 2, wherein z is greater than 0.
5. The foam drainage agent composition according to claim 1, characterized in that the strengthening assistant A is selected from water-soluble amino group-containing compounds.
6. The foam drainage agent composition according to claim 5, wherein the water-soluble amino group-containing compound is at least one selected from the group consisting of ammonium chloride, ammonium bicarbonate, urea, and biuret.
7. The foam drainage agent composition according to claim 1, wherein the strengthening assistant B is selected from water-soluble nitrogen-oxygen-containing compounds.
8. The foam drainage agent composition according to claim 7, wherein the water-soluble nitrogen-oxygen containing compound is a nitrite.
9. A preparation method of a foam drainage agent composition comprises the step of uniformly mixing the alkylamine polyether benzene sulfonate/carboxylate, alkyl polyether amine oxide, the reinforcing additive A and the reinforcing additive B in the foam drainage agent composition according to any one of claims 1 to 8 in parts by weight to obtain the foam drainage agent composition.
10. A method of drainage and gas production characterized by using the foam drainage agent composition according to any one of claims 1 to 8 or the foam drainage agent composition produced by the production method according to claim 9.
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