CN105131927B - Surfactant for binary combination flooding and preparation method thereof - Google Patents
Surfactant for binary combination flooding and preparation method thereof Download PDFInfo
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- 239000004094 surface-active agent Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims description 11
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims abstract description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229960003237 betaine Drugs 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 15
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 15
- -1 dodecyloxy hydroxypropyl betaine Chemical compound 0.000 claims abstract description 12
- BTMZHHCFEOXAAN-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;2-dodecylbenzenesulfonic acid Chemical compound OCCN(CCO)CCO.CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O BTMZHHCFEOXAAN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 8
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims abstract description 8
- PYIDGJJWBIBVIA-UYTYNIKBSA-N lauryl glucoside Chemical compound CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O PYIDGJJWBIBVIA-UYTYNIKBSA-N 0.000 claims abstract description 8
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims abstract 3
- 238000003756 stirring Methods 0.000 claims description 28
- 210000003298 dental enamel Anatomy 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 19
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000011218 binary composite Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims description 7
- 229930003268 Vitamin C Natural products 0.000 claims description 7
- 235000019154 vitamin C Nutrition 0.000 claims description 7
- 239000011718 vitamin C Substances 0.000 claims description 7
- 229940045997 vitamin a Drugs 0.000 claims description 7
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 claims description 6
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 claims description 6
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 235000019155 vitamin A Nutrition 0.000 claims description 6
- 239000011719 vitamin A Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229940105956 tea-dodecylbenzenesulfonate Drugs 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 16
- 239000010779 crude oil Substances 0.000 abstract description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 2
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 2
- 229940088594 vitamin Drugs 0.000 abstract 2
- 229930003231 vitamin Natural products 0.000 abstract 2
- 235000013343 vitamin Nutrition 0.000 abstract 2
- 239000011782 vitamin Substances 0.000 abstract 2
- 150000003722 vitamin derivatives Chemical class 0.000 abstract 2
- ZXKREJWOZYLSOV-KTKRTIGZSA-N (Z)-2-(2-hydroxyethyl)octadec-9-enoic acid Chemical compound OCCC(C(=O)O)CCCCCC\C=C/CCCCCCCC ZXKREJWOZYLSOV-KTKRTIGZSA-N 0.000 abstract 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 42
- 239000000126 substance Substances 0.000 description 12
- 239000003599 detergent Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 229920002978 Vinylon Polymers 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000003995 emulsifying agent Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000003442 weekly effect Effects 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002453 shampoo Substances 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- UXUFTKZYJYGMGO-CMCWBKRRSA-N (2s,3s,4r,5r)-5-[6-amino-2-[2-[4-[3-(2-aminoethylamino)-3-oxopropyl]phenyl]ethylamino]purin-9-yl]-n-ethyl-3,4-dihydroxyoxolane-2-carboxamide Chemical compound O[C@@H]1[C@H](O)[C@@H](C(=O)NCC)O[C@H]1N1C2=NC(NCCC=3C=CC(CCC(=O)NCCN)=CC=3)=NC(N)=C2N=C1 UXUFTKZYJYGMGO-CMCWBKRRSA-N 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 241001126326 Cyanea <Cnidaria> Species 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 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 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012900 molecular simulation Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000007762 w/o emulsion Substances 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
The surfactant for binary combination flooding is applied to improving the recovery ratio of crude oil, and comprises, by weight, α -alkenyl sulfonate 15.35-17.65%, dodecyl glucoside 13.37-15.54%, dodecylbenzene sulfonic acid triethanolamine salt 12.66-15.74%, lauryl alcohol polyoxyethylene ether (3) sodium sulfate 21.53-24.57%, alkylphenol polyoxyethylene ether carboxylate 8.62-11.87%, dodecyloxy hydroxypropyl betaine 0.005-0.006%, hydroxyethyl oleic acid imidazoline betaine 0.005-0.006%, ethanol 10.00-15.00%, vitamin A0.001-0.002%, vitamin C0.001-0.002% and water 6.566-9.037%.
Description
Technical Field
The invention relates to the technical field of oil extraction chemistry, in particular to a surfactant for binary combination flooding and a preparation method thereof.
Background
Before the 40 th century in the 20 th century, oil field development mainly depends on natural energy consumption for exploitation, the general recovery ratio is only 5% -10%, which is called primary oil recovery, and reflects that the technical level of the early oil field development is low, about 90% of ascertained oil reserves are left underground and abandoned, along with the development of the seepage theory, Darcy's law is applied to the oil field development, people realize that the oil well yield and the pressure gradient are in a direct proportion relation, the main factor of low primary oil recovery ratio is the exhaustion of oil reservoir energy, so that an artificial water (gas) injection and secondary oil recovery method for maintaining the oil reservoir pressure are provided, the oil recovery ratio is improved to 30% -40%, which is the main development mode of each oil field in the world so far, and is a major leap in the oil field development technology, but 60% -70% of oil remains underground in the secondary oil recovery, therefore, a large amount of research work is carried out by, the reason for restricting the improvement of the secondary oil recovery rate is gradually recognized, so that a new tertiary oil recovery method is provided; however, in the binary combination flooding, the performance of the surfactant plays a significant role in improving the recovery efficiency.
"progress of polymer/surfactant binary composite flooding research" published in "university of petroleum in southwest book of academic, nature science edition" 2008 volume 30, 3, luxin et al reviewed the current situation of laboratory research on poly/epi-binary composite systems and the situation of field tests performed in seven-lonely-east 54-61 of the victory oil field, starting from the characteristics of the polymer/surfactant binary system. The poly/epi-binary combination flooding is a low-concentration oil displacement system formed by removing alkali on the basis of poly/epi-base ternary combination flooding, can exert the viscosity and elasticity of a polymer to the maximum extent, reduce the negative influence caused by emulsion treatment, and weaken the phenomenon of stratum and shaft scaling caused by the existence of alkali. The analysis of research results at home and abroad shows that the poly/surface binary composite system improves the crude oil recovery rate by about 20 percent; the mine field test obtains better effect. The polymer/surfactant binary composite system can overcome the defects of a ternary system, and has wide development space as a new oil displacement method.
Zhang Xinmin et al published in oil and gas geology and recovery ratio, vol.18, No. 5, 2011, the text "evaluation on performance of binary composite drive system for offshore oil field in victory oil zone", researches the performance of binary composite drive system suitable for offshore oil field conditions in victory oil zone through experiments such as rheological property interfacial tension adsorption aging drive, and the like, and the result shows that the system has good temperature resistance, salt resistance, shear resistance and aging stability, and the surfactant enables the oil-water interfacial tension to reach 10 in a large concentration range-3mN/m. Physical simulation research shows that the binary composite drive system has good injection performance in porous medium, which is 1152.3 multiplied by 10-3um pore medium has higher resistance coefficient and residual resistance coefficient, which are respectively 504.2 and 102.7, greatly reduces water permeability, effectively enlarges swept volume, and oil displacement experiment results show that the system has good oil displacement capability, and can improve the offshore oil recovery ratio of a victory oil area by more than 24%.
"molecular simulation and formulation design of low concentration surfactant-polymer binary complex oil displacement system", published by Cao Shulong in "Petroleum institute (Petroleum processing)" at volume 24, No. 6 of 2008, "how to use dissipative particle dynamics method to simulate the arrangement behavior of surfactant alkylbenzene sulfonate at oil-water interface at mesoscopic level, examine the influence of factors such as molecular structure oil phase on interface density and interface efficiency, discuss the mechanism of improving interface activity by using surfactant compounding synergistic effect, and study the influence of surfactant type, oil phase, surfactant compounding and the like on oil-water interface tension.
Disclosure of Invention
The purpose of the invention is: provides a surface active agent for binary combination flooding, under the condition that the oil reservoir temperature is less than 150 ℃, the mineralization degree is less than 130000mg/L, and when the using concentration is 0.2-0.8%, the interfacial tension of the system can reach 10-3～10-5mN/m order of magnitude, can improve the crude oil recovery by more than 25 percent.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the raw materials of the surfactant for binary combination flooding are as follows:
the raw materials comprise:
1.α -Alkenylsulfonate (Industrial product), AOS (argon oxygen sulfide), Huanghongzhou main edition, China surfactant general overview, chemical industry Press, 9.9.2003, 1 st edition, page 138.
The application is as follows: detergent, meal detergent and oil field oil extraction auxiliary agent.
Production unit: jilida chemical company, Zhejiang, chemical industry, institute of daily chemical industry, Anhui Anqing Nanfeng daily chemical company, Japan.
2. Dodecyl glucoside (industrial); alias: APG, edited by huanghongzhou main, chinese surfactant overview, chemical industry press, 9 months, 1 st edition, 2003, page 429.
The properties are as follows: low surface tension, high activity, no irritation to human skin, fast and complete biodegradation, excellent compatibility, obvious synergistic effect and high activity in concentrated electrolyte.
The application is as follows: the novel natural green surfactant has fine and rich foam, high surface activity and good compatibility, can be used as a new active substance of cosmetics and washing products, and can also be used as an industrial active substance such as a pesticide emulsifier and the like.
Production unit: calcium carbide plant of Gighua Co Ltd
3. Triethanolamine dodecylbenzene sulfonate (industrial); the Huanghong Weekly, China surfactant general, chemical industry Press, 9.9.2003, 1 st edition, page 140.
The properties are as follows: the product is a colorless liquid. The Ubbelohde viscosity (20 ℃) is more than or equal to 180 s. The product has strong emulsifying capacity, and does not foam or foams less under the condition of adding 1.5-1% and 10% saline.
The application is as follows: the product is an oil-in-water type emulsifier, and is used for improving the recovery ratio of old wells in oil fields. The emulsifier is used as an emulsifier of oil-in-water and water-in-oil emulsion or oil-based stuck freeing fluid and can resist the high temperature of 1800 ℃. NH (NH)4HCO3An anti-caking agent component.
4. Lauryl polyoxyethylene ether (3) sodium sulfate (industrial); alias: sulfonation Pingping, Huanghongzhou main edition, Chinese surfactant overview book, chemical industry Press, 9 months, 1 st edition in 2003, page 169.
The properties are as follows: the product is a brownish red oily liquid, and can be dissolved in water and alcohol. Has good washing effect and is easy to generate a large amount of foams. It has antistatic, smoothing and softening effects on synthetic fiber.
The application is as follows: one of the main active matters of the detergent is suitable for compounding washing powder, a washing agent, shampoo and various liquid detergents. Also can be used as cosmetic raw materials such as fabric detergent, petroleum industry detergent, shampoo, etc., and can be used as vinylon filament oil and vinylon short fiber vinylon spinning oil. In the textile industry, it is used as a component of vinylon finishes and other synthetic fiber finishes. The product is also a component of liquid synthetic detergent, has good diffusion and washing properties, and is commonly used in dyeing and finishing industry.
Production unit: nanjing Cyanea dye printing auxiliary agent factory, Shanghai auxiliary agent factory Co.
5. Alkylphenol polyoxyethylene ether carboxylates (technical); alias: APEC. The Huanghong Weekly, China surfactant general, chemical industry Press, 9.2003, 1 st edition, page 181.
The properties are as follows: the light yellow transparent liquid has low surface tension, high foaming power, high penetrating power and high detergency, and is one excellent new kind of surfactant and may be also compounded with cationic surfactant or polymer. Has excellent hard water resistance and dispersibility.
The application is as follows: can be compounded with cationic surfactant to form novel anionic surfactant, excellent penetrant and detergent raw materials.
Production unit: northwest institute of textile industry
6. Dodecyloxy hydroxypropyl betaine (technical). The Huanghong Weekly, China surfactant general, chemical industry Press, 9.9.2003, 1 st edition, page 541.
The properties are as follows: the novel hydroxypropyl betaine amphoteric surfactant has excellent surface activity, conditioning property and foamability.
The application is as follows: can be used as detergent and conditioner for daily cosmetics and shampoo.
7. Hydroxyethyloleic imidazoline betaine (technical). The Huanghong Weekly, China surfactant general, chemical industry Press, 9.2003, 1 st edition, page 547.
The properties are as follows: the appearance is light yellow transparent sticky liquid, is non-toxic, has hard water resistance, has small irritation to eyes and skin, and has high biochemical degradation capability.
Production unit: university of great courseware, national institute of daily chemical industry.
8. Ethanol (industrial);
9. vitamin a (industrial);
10. vitamin C (industrial);
11. and (3) water.
Secondly, the surfactant for the binary combination flooding comprises the following components in percentage by weight:
1.α -alkenyl sulfonate accounting for 15.35 percent to 17.65 percent;
2. dodecyl glucoside: 13.37% -15.54%;
3. triethanolamine dodecylbenzene sulfonate: 12.66% -15.74%;
4. sodium lauryl polyoxyethylene ether (3) sulfate: 21.53% -24.57%;
5. alkylphenol polyoxyethylene ether carboxylate: 8.62 to 11.87 percent;
6. dodecyloxy hydroxypropyl betaine: 0.005% -0.006%;
7. hydroxyethyl oleic imidazoline betaine: 0.005% -0.006%;
8. ethanol: 10.00% -15.00%;
9. vitamin A: 0.001% -0.002%;
10. vitamin C: 0.001% -0.002%;
11. water: 6.566-9.037 percent.
The sum of the weight percentages of the components is one hundred percent.
Thirdly, the invention is used for the main equipment of the preparation of the surfactant of the binary combination flooding
A 2000L enamel reactor with stirring, heating, cooling and vacuum systems;
a 3000L enamel reaction kettle with a stirring, heating, cooling and vacuum system;
2000L's enamel reactor and 3000L enamel reactor pass through valve, pipeline connection, and the material after the reaction in 2000L enamel reactor and 3000L enamel reactor has the function that can add each other.
The preparation method of the surfactant for binary combination flooding is completed by the following three steps:
① adding 21.53-24.57 wt% sodium lauryl polyoxyethylene ether (3) sulfate, 10.00-15.00 wt% ethanol and 0.005-0.006 wt% hydroxyethyl oleic imidazoline betaine into a 2000L enamel reaction kettle, stirring, heating to 75 + -3 deg.C, stirring for 20-30 min, maintaining at 75 + -3 deg.C, and standing;
② adding 15.35-17.65 wt% of α -alkenyl sulfonate, 8.62-11.87 wt% of alkylphenol polyoxyethylene ether carboxylate and 0.005-0.006 wt% of dodecyloxy hydroxypropyl betaine into a 3000L enamel reaction kettle, heating to 115 +/-3 ℃, controlling the reaction pressure at 0.25 MPa-0.35 MP, and stirring for 60-80 min;
③ slowly adding the reacted materials in 2000L enamel reactor into 3000L enamel reactor for 20-30 min, heating to 115 + -3 deg.C, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 60-80 min, then adding 13.37-15.54% dodecyl glucoside, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 35-45 min, adding 12.66-15.74% dodecyl benzene sulfonic acid triethanolamine salt, 0.001-0.002% vitamin A and 0.001-0.002% vitamin C, stirring for 45-55 min, cooling to 70 deg.C after the pressure in reactor returns to zero, adding 6.566-9.037% water, stirring for 25-35 min, stopping stirring, cooling, discharging and obtaining the surfactant for binary composite flooding.
Briefly describing the application method of the surfactant for binary combination flooding, 0.2-0.8% of the surfactant for binary combination flooding, 0.1-0.3% of anionic polyacrylamide and water are stirred and mixed uniformly in the injection site (the sum of the weight percentages of the surfactant for binary combination flooding, the anionic polyacrylamide and the water is one hundred percent), and then the surfactant is injected into an oil layer through special equipment, and field technicians and operators are familiar with the work.
The invention has the beneficial effects that: under the conditions that the oil reservoir temperature is less than 150 ℃ and the mineralization degree is less than 130000mg/L and the use concentration is 0.2-0.8 percent, the interfacial tension of the system can reach 10-3～10-5The mN/m order of magnitude, and the oil reservoir is applied to improve the crude oil recovery by 27.35 percentage points.
Detailed Description
Example 1: the surfactant for the binary composite flooding comprises the following components in percentage by weight:
1.α -Alkenylsulphonate 15.35%
2. Dodecyl glucoside: 15.54 percent
3. Triethanolamine dodecylbenzene sulfonate: 14.75 percent
4. Sodium lauryl polyoxyethylene ether (3) sulfate: 22.34 percent
5. Alkylphenol polyoxyethylene ether carboxylate: 10.85 percent
6. Dodecyloxy hydroxypropyl betaine: 0.005 percent
7. Hydroxyethyl oleic imidazoline betaine: 0.006 percent
8. Ethanol: 12.5 percent
9. Vitamin A: 0.002%
10. Vitamin C: 0.001 percent
11. Water: 8.656 percent
The sum of the weight percentages of the components is one hundred percent.
Main equipment for preparing surfactant for binary compound flooding
A 2000L enamel reactor with stirring, heating, cooling and vacuum systems;
a 3000L enamel reaction kettle with a stirring, heating, cooling and vacuum system;
2000L's enamel reactor and 3000L enamel reactor pass through valve, pipeline connection, and the material after the reaction in 2000L enamel reactor and 3000L enamel reactor has the function that can add each other.
The preparation method of the surfactant for binary combination flooding comprises the following three steps:
① adding 21.53-24.57 wt% sodium lauryl polyoxyethylene ether (3) sulfate, 10.00-15.00 wt% ethanol and 0.005-0.006 wt% hydroxyethyl oleic imidazoline betaine into a 2000L enamel reaction kettle, stirring, heating to 75 + -3 deg.C, stirring for 20-30 min, maintaining at 75 + -3 deg.C, and standing;
② adding 15.35-17.65 wt% of α -alkenyl sulfonate, 8.62-11.87 wt% of alkylphenol polyoxyethylene carboxylate and 0.005-0.006 wt% of dodecyloxy hydroxypropyl betaine into a 3000L enamel reaction kettle, heating to 115 +/-3 ℃, controlling the reaction pressure at 0.25 MPa-0.35 MP, and stirring for 60-80 min;
③ slowly adding the reacted materials in 2000L enamel reactor into 3000L enamel reactor for 20-30 min, heating to 115 + -3 deg.C, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 60-80 min, then adding 13.37-15.54% dodecyl glucoside, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 35-45 min, adding 12.66-15.74% dodecyl benzene sulfonic acid triethanolamine salt, 0.001-0.002% vitamin A and 0.001-0.002% vitamin C, stirring for 45-55 min, cooling to 70 deg.C after the pressure in the reactor returns to zero, adding the water amount in the formula of surfactant for binary composite flooding, stirring for 25-35 min, stopping stirring, cooling and discharging to obtain the surfactant for binary composite flooding.
Examples 2, 3, 4, 5 and 6
The preparation method of the surfactant for binary combination flooding and the preparation method thereof, the preparation processes of the examples 2, 3, 4, 5 and 6 are basically the same as the example 1, except that the formula is shown in a list manner, wherein the formulas of the examples 1 to 6 prepared by the preparation method of the surfactant for binary combination flooding are shown in the following table 1:
table 1: the formula of the surfactant for binary combination flooding (the sum of the weight percentages of all the components is one hundred percent).
Claims (2)
1. A surfactant for binary combination flooding, which is characterized in that: the weight percentage of each component is as follows:
α -alkenyl sulfonate accounting for 15.35 percent to 17.65 percent;
dodecyl glucoside: 13.37% -15.54%;
triethanolamine dodecylbenzene sulfonate: 12.66% -15.74%;
sodium lauryl polyoxyethylene ether (3) sulfate: 21.53% -24.57%;
alkylphenol polyoxyethylene ether carboxylate: 8.62 to 11.87 percent;
dodecyloxy hydroxypropyl betaine: 0.005% -0.006%;
hydroxyethyl oleic imidazoline betaine: 0.005% -0.006%;
ethanol: 10.00% -15.00%;
vitamin A: 0.001% -0.002%;
vitamin C: 0.001% -0.002%;
water: 6.566-9.037 percent.
2. The surfactant for binary combination flooding according to claim 1, characterized in that: the preparation method comprises the following three steps:
① adding 21.53-24.57 wt% sodium lauryl polyoxyethylene ether (3) sulfate, 10.00-15.00 wt% ethanol and 0.005-0.006 wt% hydroxyethyl oleic imidazoline betaine into a 2000L enamel reaction kettle, stirring, heating to 75 + -3 deg.C, stirring for 20-30 min, maintaining at 75 + -3 deg.C, and standing;
② adding 15.35-17.65 wt% of α -alkenyl sulfonate, 8.62-11.87 wt% of alkylphenol polyoxyethylene ether carboxylate and 0.005-0.006 wt% of dodecyloxy hydroxypropyl betaine into a 3000L enamel reaction kettle, heating to 115 +/-3 ℃, controlling the reaction pressure at 0.25 MPa-0.35 MP, and stirring for 60-80 min;
③ slowly adding the reacted materials in 2000L enamel reactor into 3000L enamel reactor for 20-30 min, heating to 115 + -3 deg.C, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 60-80 min, then adding 13.37-15.54% dodecyl glucoside, controlling the reaction pressure at 0.25 MPa-0.35 MP, stirring for 35-45 min, adding 12.66-15.74% dodecyl benzene sulfonic acid triethanolamine salt, 0.001-0.002% vitamin A and 0.001-0.002% vitamin C, stirring for 45-55 min, cooling to 70 deg.C after the pressure in reactor returns to zero, adding 6.566-9.037% water, stirring for 25-35 min, stopping stirring, cooling, discharging and obtaining the surfactant for binary composite flooding.
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| CN107311259A (en) * | 2016-10-19 | 2017-11-03 | 烟台智本知识产权运营管理有限公司 | A kind of binary combination flooding output water degreaser and preparation method thereof |
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