CN109973064A - A kind of oil exploitation method - Google Patents
A kind of oil exploitation method Download PDFInfo
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- CN109973064A CN109973064A CN201910231696.1A CN201910231696A CN109973064A CN 109973064 A CN109973064 A CN 109973064A CN 201910231696 A CN201910231696 A CN 201910231696A CN 109973064 A CN109973064 A CN 109973064A
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- oil
- polyoxyethylene ether
- sodium
- copolymer
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- 238000000034 method Methods 0.000 title claims abstract description 60
- -1 polyoxyethylene groups Polymers 0.000 claims abstract description 137
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 92
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 92
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims abstract description 91
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims abstract description 91
- 229920000570 polyether Polymers 0.000 claims abstract description 89
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 83
- 229920000642 polymer Polymers 0.000 claims abstract description 80
- 229920001577 copolymer Polymers 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000003129 oil well Substances 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 80
- 229910052708 sodium Inorganic materials 0.000 claims description 44
- 239000011734 sodium Substances 0.000 claims description 44
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- 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 claims description 37
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 36
- 239000004698 Polyethylene Substances 0.000 claims description 34
- 229920000768 polyamine Polymers 0.000 claims description 34
- 229920000573 polyethylene Polymers 0.000 claims description 34
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 28
- 238000010792 warming Methods 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 26
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 25
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 19
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 150000002148 esters Chemical class 0.000 claims description 16
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 14
- 229920001285 xanthan gum Polymers 0.000 claims description 14
- 230000003213 activating effect Effects 0.000 claims description 13
- 239000000230 xanthan gum Substances 0.000 claims description 13
- 235000010493 xanthan gum Nutrition 0.000 claims description 13
- 229940082509 xanthan gum Drugs 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 12
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 11
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 11
- 239000003995 emulsifying agent Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 9
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- XDESGXRLUIHEJT-UHFFFAOYSA-N 2,3,4-tribenzylphenol Chemical group C=1C=CC=CC=1CC1=C(CC=2C=CC=CC=2)C(O)=CC=C1CC1=CC=CC=C1 XDESGXRLUIHEJT-UHFFFAOYSA-N 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 229920006316 polyvinylpyrrolidine Polymers 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims 1
- 239000004593 Epoxy Substances 0.000 claims 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims 1
- 238000007259 addition reaction Methods 0.000 claims 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 92
- 239000010779 crude oil Substances 0.000 abstract description 24
- 230000018044 dehydration Effects 0.000 abstract description 19
- 238000006297 dehydration reaction Methods 0.000 abstract description 19
- 238000000605 extraction Methods 0.000 abstract description 16
- 239000003208 petroleum Substances 0.000 abstract description 7
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 27
- 238000011084 recovery Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 230000002209 hydrophobic effect Effects 0.000 description 7
- 238000007334 copolymerization reaction Methods 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- 239000004711 α-olefin Substances 0.000 description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 4
- 239000000693 micelle Substances 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 150000002632 lipids Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 230000003335 steric effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000009671 shengli 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
- C09K8/588—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 polymers
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
Abstract
The invention discloses a kind of oil exploitation methods, belong to technical field of petroleum extraction.The oil exploitation method is the following steps are included: S1: preparation nonylphenol polyoxyethylene ether polymer；S2: triblock polyether copolymer is prepared；S3: preparation polyoxyethylene groups ester copolymer；S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are 100: 0.8-1.5 to be uniformly mixed and be configured to oil reservoir and squeeze into liquid, then oil reservoir is squeezed into liquid and squeezes into oil reservoir by weight, and build the pressure 24-48h；Then using pumping unit or screw pump lifting equipment lifting extraction well liquid, polyoxyethylene groups ester copolymer and triblock polyether copolymer is added in the annular space between oil well oil conduit and casing, while lifting extraction well liquid；The weight ratio of the nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer is (4.2-6.4): (3.5-4.6): (3.5-5.8).The present invention improves the dehydration rate of oil exploitation Crude Oil Produced Liquid by the reinforcement system constituted using nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer.
Description
Technical field
The invention belongs to technical field of petroleum extraction, and in particular to a kind of method of oil exploitation.
Background technique
In recent years, economic development is maked rapid progress, to meet the needs of to petroleum, when oil field mostly enters tertiary oil recovery
Phase, chemical displacement of reservoir oil technology are most widely used technologies during tertiary oil recovery.Since chemical displacement of reservoir oil technology can significantly improve
The recovery ratio of crude oil, makes oil field have more potentiality to be exploited, and application prospect is very wide.Therefore, the main target studied from now on is
Chemical flooding level and efficient process chemistry flooding produced liquid is continuously improved.
Chemical flooding can significantly improve sweep efficiency, improve oil and water mobility ratio, increase oil recovery factor, but surface-active
The injection of agent also brings difficulty to the processing of Produced Liquid and the re-injection of recovered water.The oil recovery auxiliary agent of addition can make the oil of system
Water interfacial tension is greatly lowered, and system is in thermodynamic stability；Meanwhile being adsorbed on agent molecule on oil-water interfaces
Hydrophobic chain is wrapped in droplet surface and forms protective layer, had both increased the difficulty of the crude oil emulsion water-oil separating of extraction, and had also caused
Oil content is high in sewage after separation, increases the burden of sewage treatment.
It is practiced by years of researches and oil field, chemical flooding technology is used by each elephant and achieves very high economic effect
Beneficial chemical flooding technology is enjoyed great prestige in the world as the dominant technology of the multiple oil field continuously steady productions in China.But chemical flooding technology is improving
Processing while recovery ratio also to later period Produced Liquid brings many problems, such as enhances emulsion stability, grease and is difficult to point
Increased from, produced water treatment and re-injection difficulty etc., these problems can cause the raising of thickened oil recovery cost again.
Chinese patent literature " a kind of method of thickened oil recovery (patent No. ZL 200810117487.6) " discloses a kind of thick
The method of oil exploitation, mainly provides a serial thinner, includes that oil reservoir and well wellbore make reducing thick oil viscosity in oil well, improves
The mobility of viscous crude.It include: a. to prepare water-soluble thinner I；B. thinner II is prepared；C. thinner III is prepared；It d. will be water-soluble
Property thinner I squeezes into oil reservoir；E. using pumping unit or screw pump lifting equipment lifting extraction well liquid；Not according to Produced Liquid crude oil
Same viscosity, viscosity reducing agent II or viscosity reducing agent III is added in the annular space between oil well oil conduit and casing respectively.The invention is adopted
Chemically make reducing thick oil viscosity in oil reservoir and reduce the viscosity of well liquid in pit shaft, improves thickened oil recovery effect, oil well is continuously given birth to
The production time is far longer than the recovery method of the prior art, and production run cost is greatly lowered, hence it is evident that is better than existing thickened oil recovery
Technology.But still have the problem not so good to petroleum dehydrating effect.
Summary of the invention
The object of the present invention is to provide a kind of oil exploitation methods, to solve in a kind of Chinese patent literature " thickened oil recovery
Method (patent No. ZL 200810117487.6) " it is disclosed on the basis of how to optimize chemical assistant component, formula, user
Method etc. improves the problem of chemical assistant is to the dehydrating effect of thickened oil recovery.
In order to solve the above technical problems, the present invention uses following technical scheme
A kind of oil exploitation method, comprising the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer includes following component:
Sodium hydroxide, polyethylene polyamine, sodium carbonate, nonylphenol polyoxyethylene ether sodium sulfonate, sodium bicarbonate, surplus are water；
The method for preparing nonylphenol polyoxyethylene ether polymer: by three kinds of sodium hydroxide, sodium carbonate and sodium bicarbonate components
It is proportionally added into reaction kettle, 20% water is added after being slowly warming up to 50-60 DEG C, stirs 30-40min, is then being stirred continuously
In the case where sequentially add polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate, be eventually adding water, it is stirring while adding, stirring
20-25min stops heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer includes following component: potassium hydroxide, ring
Ethylene Oxide, ethylene oxide, polyethylene polyamine；
The method for preparing triblock polyether copolymer: catalyst potassium hydroxide being added in a high pressure reaction kettle, is filled with nitrogen,
It vacuumizes, is warming up to 125-135 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa
Hereinafter, polyethylene polyamine reaction 1-2h is added, the oleophylic head of polypropylene oxide is obtained；Adjust temperature to 115-125 DEG C, again to
Be added dropwise ethylene oxide in reaction kettle, control reactor pressure in 0.5MPa hereinafter, to material reaction pressure completely and in reaction kettle
After being reduced to initial value, polyethylene polyamine is added, the reaction was continued at such a temperature 1-2h obtains polyethylene oxide hydrophilic head, then
It is warming up to 125-135 DEG C, then 40% propylene oxide is added dropwise into reaction kettle, controls the pressure of reaction kettle in 0.5MPa hereinafter, anti-
1-2h is answered, is cooled down after the reaction was completed, white solid three block type polyethers triblock polyether copolymer is obtained；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer includes following component: polyethylene pyrrole
Pyrrolidone, polyoxyethylene stearic acid ester, α-sodium olefin sulfonate, ethoxylated alkyl sodium sulfonate, emulsifier, stabilizer, ABS surface
Activating agent, xanthan gum；
The method for preparing polyoxyethylene groups ester copolymer: polyvinylpyrrolidone, α-olefin sulfonic acid are added in a kettle
Sodium and 30% water, stirring and dissolving, constant temperature 10min, sequentially adds stearic acid polyoxyethylene after reaction kettle is warming up to 40-45 DEG C
Ester, ethoxylated alkyl sodium sulfonate, emulsifier, stabilizer, ABS surface activating agent, xanthan gum stirring and dissolving and remaining water, heating
Constant temperature 10min is after to 60-65 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are 100: 0.8-1.5 to be uniformly mixed and be configured to by weight
Oil reservoir squeezes into liquid, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, and build the pressure 24-48h；Then it is lifted using pumping unit or screw pump lifting equipment
Extraction well liquid is risen, polyoxyethylene groups ester copolymer and triblock polyether copolymerization is added in the annular space between oil well oil conduit and casing
Object, while lifting extraction well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the three block is poly-
The weight ratio of ether copolymer is (4.2-6.4): (3.5-4.6): (3.5-5.8).
Preferably, the nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether are total
Polymers and oil well liquid-producing volume ratio are 5.3:4.2:4.6.
Preferably, the nonylphenol polyoxyethylene ether polymer is as unit of parts by weight, including following component: sodium hydroxide
2-6 parts, 3-7 parts of polyethylene polyamine, 7-12 parts of sodium carbonate, 3-6 parts of nonylphenol polyoxyethylene ether sodium sulfonate, 4-8 parts of sodium bicarbonate,
60-80 parts of water.
Preferably, the triblock polyether copolymer is as unit of parts by weight, including following component: 3-5 parts of potassium hydroxide,
4-8 parts of propylene oxide, 1-4 parts of ethylene oxide, 2-3 parts of polyethylene polyamine.
Preferably, the polyoxyethylene groups ester copolymer is as unit of parts by weight, including following component: polyvinylpyrrolidine
5-8 parts of ketone, 2-4 parts of polyoxyethylene stearic acid ester, α -1-5 parts of sodium olefin sulfonate, 2-6 parts of ethoxylated alkyl sodium sulfonate, emulsification
0.3-0.7 parts of agent, 0.5-0.8 parts of stabilizer, 0.2-0.5 parts of ABS surface activating agent, 2.4-2.8 parts of xanthan gum, 50-70 parts of water.
Preferably, the emulsifier is tribenzyl phenol polyethenoxy ether, in alkyl phenol polyoxyethylene ether polyethenoxy ether
It is a kind of.
Preferably, the stabilizer is one of sodium carboxymethylcellulose, polyacrylamide.
Preferably, the nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymerization
The total weight and oil well liquid-producing volume ratio of object are 1-3 grams: 1-1.2 liter.
The invention has the following advantages:
(1) by the data of embodiment 1-3 and comparative example 5 as it can be seen that being produced using the crude oil that the method for embodiment 1-3 obtains
The dehydration rate for the crude oil Produced Liquid that the dehydration rate of liquid is obtained significantly greater than with the method for comparative example 5；Simultaneously by embodiment 1-3's
Data are as it can be seen that embodiment 1 is optimum embodiment.
(2) by embodiment 1 and the data of comparative example 1-4 as it can be seen that nonylphenol polyoxyethylene ether polymer, polyoxyethylene base ester
Copolymer and triblock polyether copolymer play synergistic effect during thickened oil recovery, and collaboration improves crude oil Produced Liquid
Dehydration rate；This is:
The triblock polyether copolymer that the present invention uses has very high surface-active, and hydrophilic group has positive charge, can
To neutralize water drops surface negative electrical charge, the alkyl chain in molecule possesses lipophilicity, is easy to be adsorbed on oil droplets, plays breaking emulsion and dewatering
Effect, while triblock polyether copolymer is easy to be adsorbed on oil-water interfacial film, reduces the stability of film, convenient for grease point
From.Contain polar hydrophilic group such as hydroxyl, sulfonic group, ether in the nonylphenol polyoxyethylene ether polymer molecule that the present invention uses
Base, alkyl and non-polar hydrophobic groups alkyl, therefore there is surface-active, micella can be formed in water, it is total with triblock polyether
There are competitive Adsorption between polymers molecule, the space behavior and electrostatic repulsion of nonylphenol polyoxyethylene ether polymer molecule make
It obtains more hydrone to penetrate into inside triblock polyether copolymer molecule micella, triblock polyether copolymer molecule is caused to be formed
Micellar structure it is more open, aggregation number of micelle reduce so that crude oil Produced Liquid is easy to be dehydrated；In addition, the nonyl phenol of small molecule
Polyoxyethylene ether polymer is easy to the Preferential adsorption on oil-water interfaces, inhibits triblock polyether copolymer molecule poly- on interface
Collection effect, causes the molecules align on interface loose, and interfacial film strength weakens, and nonylphenol polyoxyethylene ether polymer and three embedding
The repulsive interaction generated between section copolyether molecule, reduces triblock polyether copolymer and nonylphenol polyoxyethylene ether is poly-
Absorption of the adduct molecule in crude oil interface, it is suppressed that film spreading amount facilitates the demulsification of crude oil Produced Liquid, so that dehydration rate liter
It is high.Alkyl has lipophilicity, the mixing with triblock polyether copolymer in polyoxyethylene groups ester copolymer used in the present invention
It is generated in system, between the hydrophobic part of triblock polyether copolymer and the hydrophobic grouping of polyoxyethylene groups ester copolymer strong hydrophobic
Effect forms mixed micelle, due to containing polyoxyethylene stearic acid ester in polyoxyethylene groups ester copolymer ingredient, in lipid material
The micellar structure that existing steric hindrance itself causes triblock polyether copolymer molecule to be formed is of a relatively loose, and partial moisture seeps
Thoroughly to inside micella, interfacial film strength weakens, and film spreading amount reduces, and dehydration rate improves.
(3) by the data of comparative example 6-8 as it can be seen that nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and
The weight ratio of triblock polyether copolymer is not at (4.2-6.4): (3.5-4.6): when in (3.5-5.8) range, opening for petroleum
The numerical value of dehydration rate and embodiment 1-3 when adopting in crude oil Produced Liquid is very different, and existing much smaller than the numerical value of embodiment 1-3
There is the numerical value of technology (comparative example 5) suitable.Nonylphenol polyoxyethylene ether polymer of the present invention, polyoxyethylene groups ester copolymer and three
For block polyether copolymer as reinforcement system, it is total that embodiment 1-3 controls nonylphenol polyoxyethylene ether polymer, polyoxyethylene base ester
The weight ratio of polymers and triblock polyether copolymer is (4.2-6.4): (3.5-4.6): (3.5-5.8), is realized in reinforcement system
It is middle to be adsorbed on oil droplets using triblock polyether copolymer and play the role of breaking emulsion and dewatering；Nonylphenol polyoxyethylene ether polymer
Space behavior and electrostatic repulsion cause triblock polyether copolymer molecule formed micellar structure it is more open；Polyoxy second
The space steric effect of alkenyl ester copolymer causes so that spies such as partial moisture penetrate into inside micella, and interfacial film strength weakens
Point, so that the reinforcement that nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer are constituted
System improves the dehydration rate of crude oil Produced Liquid in oil exploitation of the invention.
Specific embodiment
In order to better understand the present invention, it is now illustrated using following embodiment, following embodiment belongs to of the invention
Protection scope, but do not limit the scope of the invention.
The oil exploitation method, comprising the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer are single with parts by weight
Position, including following component: 2-6 parts of sodium hydroxide, 3-7 parts of polyethylene polyamine, 7-12 parts of sodium carbonate, nonylphenol polyoxyethylene ether sulphur
Sour sodium 3-6 parts, 4-8 parts of sodium bicarbonate, 60-80 parts of water；
The method for preparing nonylphenol polyoxyethylene ether polymer: by three kinds of sodium hydroxide, sodium carbonate and sodium bicarbonate components
It is proportionally added into reaction kettle, 20% water is added after being slowly warming up to 50-60 DEG C, stirs 30-40min, is then being stirred continuously
In the case where sequentially add polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate, be eventually adding water, it is stirring while adding, stirring
20-25min stops heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer is as unit of parts by weight, including with the following group
Part: 3-5 parts of potassium hydroxide, 4-8 parts of propylene oxide, 1-4 parts of ethylene oxide, 2-3 parts of polyethylene polyamine；
The method for preparing triblock polyether copolymer: catalyst potassium hydroxide being added in a high pressure reaction kettle, is filled with nitrogen,
It vacuumizes, is warming up to 125-135 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa
Hereinafter, polyethylene polyamine reaction 1-2h is added, the oleophylic head of polypropylene oxide is obtained；Adjust temperature to 115-125 DEG C, again to
Be added dropwise ethylene oxide in reaction kettle, control reactor pressure in 0.5MPa hereinafter, to material reaction pressure completely and in reaction kettle
After being reduced to initial value, polyethylene polyamine is added, the reaction was continued at such a temperature 1-2h obtains polyethylene oxide hydrophilic head, then
It is warming up to 125-135 DEG C, then 40% propylene oxide is added dropwise into reaction kettle, controls the pressure of reaction kettle in 0.5MPa hereinafter, anti-
1-2h is answered, is cooled down after the reaction was completed, white solid three block type polyethers triblock polyether copolymer is obtained；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer as unit of parts by weight, including with
Lower component: 5-8 parts of polyvinylpyrrolidone, 2-4 parts of polyoxyethylene stearic acid ester, α -1-5 parts of sodium olefin sulfonate, ethoxylation alkane
2-6 parts of base sodium sulfonate, 0.3-0.7 parts of emulsifier, 0.5-0.8 parts of stabilizer, 0.2-0.5 parts of ABS surface activating agent, xanthan gum
2.4-2.8 50-70 parts of part, water；The emulsifier is tribenzyl phenol polyethenoxy ether, alkyl phenol polyoxyethylene ether polyethenoxy ether
One of；The stabilizer is one of sodium carboxymethylcellulose, polyacrylamide；
The method for preparing polyoxyethylene groups ester copolymer: polyvinylpyrrolidone, α-olefin sulfonic acid are added in a kettle
Sodium and 30% water, stirring and dissolving, constant temperature 10min, sequentially adds stearic acid polyoxyethylene after reaction kettle is warming up to 40-45 DEG C
Ester, ethoxylated alkyl sodium sulfonate, emulsifier, stabilizer, ABS surface activating agent, xanthan gum stirring and dissolving and remaining water, heating
Constant temperature 10min is after to 60-65 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are 100: 0.8-1.5 to be uniformly mixed and be configured to by weight
Oil reservoir squeezes into liquid, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, and build the pressure 24-48h；Then it is lifted using pumping unit or screw pump lifting equipment
Extraction well liquid is risen, polyoxyethylene groups ester copolymer and triblock polyether copolymerization is added in the annular space between oil well oil conduit and casing
Object, while lifting extraction well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the three block is poly-
The weight ratio of ether copolymer is (4.2-6.4): (3.5-4.6): (3.5-5.8)；The nonylphenol polyoxyethylene ether polymer gathers
The total weight of oxyethylene group ester copolymer and triblock polyether copolymer and oil well liquid-producing volume ratio are 1-3 grams: 1-1.2 liter.
Embodiment 1
A kind of oil exploitation method, comprising the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer are single with parts by weight
Position, including following component: 4 parts of sodium hydroxide, 7 parts of polyethylene polyamine, 9 parts of sodium carbonate, nonylphenol polyoxyethylene ether sodium sulfonate 3
Part, 4 parts of sodium bicarbonate, 70 parts of water；
The method for preparing nonylphenol polyoxyethylene ether polymer: by three kinds of sodium hydroxide, sodium carbonate and sodium bicarbonate components
It is proportionally added into reaction kettle, 20% water is added after being slowly warming up to 60 DEG C, 35min is stirred, then the case where being stirred continuously
Under sequentially add polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate, be eventually adding water, it is stirring while adding, stir 20min,
Stop heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer is as unit of parts by weight, including with the following group
Part: 5 parts of potassium hydroxide, 4 parts of propylene oxide, 3 parts of ethylene oxide, 2.5 parts of polyethylene polyamine；
The method for preparing triblock polyether copolymer: catalyst potassium hydroxide being added in a high pressure reaction kettle, is filled with nitrogen,
Vacuumize, be warming up to 135 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa hereinafter,
Polyethylene polyamine reaction 1.5h is added, obtains the oleophylic head of polypropylene oxide；Temperature is adjusted to 120 DEG C, again into reaction kettle
Ethylene oxide is added dropwise, control reactor pressure in 0.5MPa hereinafter, to material reaction completely and in reaction kettle pressure reduction to first
After initial value, polyethylene polyamine is added, the reaction was continued at such a temperature 1.5h obtains polyethylene oxide hydrophilic head, then be warming up to 125
DEG C, then 40% propylene oxide is added dropwise into reaction kettle, the pressure of reaction kettle is controlled in 0.5MPa hereinafter, reaction 1h, reaction are completed
After cool down, obtain white solid three block type polyethers triblock polyether copolymer；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer as unit of parts by weight, including with
Lower component: 5 parts of polyvinylpyrrolidone, 3 parts of polyoxyethylene stearic acid ester, 1 part of α-sodium olefin sulfonate, ethoxylated alkyl sulfonic acid
6 parts of sodium, 0.5 part of tribenzyl phenol polyethenoxy ether, 0.7 part of sodium carboxymethylcellulose .5 parts of ABS surface activating agent, xanthan gum 2.4
Part, 70 parts of water；
The method for preparing polyoxyethylene groups ester copolymer: polyvinylpyrrolidone, α-olefin sulfonic acid are added in a kettle
Sodium and 30% water, stirring and dissolving, constant temperature 10min after reaction kettle is warming up to 42 DEG C, sequentially add polyoxyethylene stearic acid ester,
Ethoxylated alkyl sodium sulfonate, tribenzyl phenol polyethenoxy ether, sodium carboxymethylcellulose, ABS surface activating agent, xanthan gum stirring
Dissolution and remaining water, constant temperature 10min is after being warming up to 63 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are to be uniformly mixed be configured to oil reservoir at 100: 1.3 by weight
Liquid is squeezed into, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, is built the pressure for 24 hours；Then using pumping unit or the lifting extraction of screw pump lifting equipment
Polyoxyethylene groups ester copolymer and triblock polyether copolymer is added in well liquid, the annular space between oil well oil conduit and casing, simultaneously
Lifting extraction well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the triblock polyether copolymerization
The weight ratio of object is 5.3:4.2:4.6；The nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and three block
The total weight and oil well liquid-producing volume ratio of copolyether are 1 gram: 1 liter.
Embodiment 2
A kind of oil exploitation method, comprising the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer are single with parts by weight
Position, including following component: 6 parts of sodium hydroxide, 3 parts of polyethylene polyamine, 12 parts of sodium carbonate, nonylphenol polyoxyethylene ether sodium sulfonate 5
Part, 6 parts of sodium bicarbonate, 80 parts of water；
The method for preparing nonylphenol polyoxyethylene ether polymer: by three kinds of sodium hydroxide, sodium carbonate and sodium bicarbonate components
It is proportionally added into reaction kettle, 20% water is added after being slowly warming up to 50 DEG C, 40min is stirred, then the case where being stirred continuously
Under sequentially add polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate, be eventually adding water, it is stirring while adding, stir 22min,
Stop heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer is as unit of parts by weight, including with the following group
Part: 3 parts of potassium hydroxide, 6 parts of propylene oxide, 4 parts of ethylene oxide, 3 parts of polyethylene polyamine；
The method for preparing triblock polyether copolymer: catalyst potassium hydroxide being added in a high pressure reaction kettle, is filled with nitrogen,
Vacuumize, be warming up to 125 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa hereinafter,
Polyethylene polyamine reaction 2h is added, obtains the oleophylic head of polypropylene oxide；Temperature is adjusted to 125 DEG C, is dripped again into reaction kettle
Add ethylene oxide, control reactor pressure in 0.5MPa hereinafter, to material reaction completely and in reaction kettle pressure reduction to initial
After value, polyethylene polyamine is added, the reaction was continued at such a temperature 2h obtains polyethylene oxide hydrophilic head, then be warming up to 130 DEG C,
40% propylene oxide is added dropwise into reaction kettle again, controls the pressure of reaction kettle in 0.5MPa hereinafter, reacting 1.5h, after the reaction was completed
Cooling, obtains white solid three block type polyethers triblock polyether copolymer；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer as unit of parts by weight, including with
Lower component: 6 parts of polyvinylpyrrolidone, 4 parts of polyoxyethylene stearic acid ester, 3 parts of α-sodium olefin sulfonate, ethoxylated alkyl sulfonic acid
2 parts of sodium, 0.7 part of alkyl phenol polyoxyethylene ether polyethenoxy ether, 0.8 part of polyacrylamide, 0.2 part of ABS surface activating agent, xanthan
2.6 parts of glue, 50 parts of water；
The method for preparing polyoxyethylene groups ester copolymer: polyvinylpyrrolidone, α-olefin sulfonic acid are added in a kettle
Sodium and 30% water, stirring and dissolving, constant temperature 10min after reaction kettle is warming up to 45 DEG C, sequentially add polyoxyethylene stearic acid ester,
Ethoxylated alkyl sodium sulfonate, alkyl phenol polyoxyethylene ether polyethenoxy ether, polyacrylamide, ABS surface activating agent, xanthan gum
Stirring and dissolving and remaining water, constant temperature 10min is after being warming up to 65 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are to be uniformly mixed be configured to oil reservoir at 100: 1.5 by weight
Liquid is squeezed into, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, build the pressure 36h；Then using pumping unit or the lifting extraction of screw pump lifting equipment
Polyoxyethylene groups ester copolymer and triblock polyether copolymer is added in well liquid, the annular space between oil well oil conduit and casing, simultaneously
Lifting extraction well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the triblock polyether copolymerization
The weight ratio of object is 6.4:4.6:5.8；The nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and three block
The total weight and oil well liquid-producing volume ratio of copolyether are 2 grams: 1.1 liters.
Embodiment 3
A kind of oil exploitation method, comprising the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer are single with parts by weight
Position, including following component: 2 parts of sodium hydroxide, 5 parts of polyethylene polyamine, 7 parts of sodium carbonate, nonylphenol polyoxyethylene ether sodium sulfonate 6
Part, 8 parts of sodium bicarbonate, 60 parts of water；
The method for preparing nonylphenol polyoxyethylene ether polymer: by three kinds of sodium hydroxide, sodium carbonate and sodium bicarbonate components
It is proportionally added into reaction kettle, 20% water is added after being slowly warming up to 55 DEG C, 30min is stirred, then the case where being stirred continuously
Under sequentially add polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate, be eventually adding water, it is stirring while adding, stir 25min,
Stop heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer is as unit of parts by weight, including with the following group
Part: 4 parts of potassium hydroxide, 8 parts of propylene oxide, 1 part of ethylene oxide, 2 parts of polyethylene polyamine；
The method for preparing triblock polyether copolymer: catalyst potassium hydroxide being added in a high pressure reaction kettle, is filled with nitrogen,
Vacuumize, be warming up to 130 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa hereinafter,
Polyethylene polyamine reaction 1h is added, obtains the oleophylic head of polypropylene oxide；Temperature is adjusted to 115 DEG C, is dripped again into reaction kettle
Add ethylene oxide, control reactor pressure in 0.5MPa hereinafter, to material reaction completely and in reaction kettle pressure reduction to initial
After value, polyethylene polyamine is added, the reaction was continued at such a temperature 1h obtains polyethylene oxide hydrophilic head, then be warming up to 135 DEG C,
40% propylene oxide is added dropwise into reaction kettle again, controls the pressure of reaction kettle in 0.5MPa hereinafter, reaction 2h, drops after the reaction was completed
Temperature obtains white solid three block type polyethers triblock polyether copolymer；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer as unit of parts by weight, including with
Lower component: 8 parts of polyvinylpyrrolidone, 2 parts of polyoxyethylene stearic acid ester, 5 parts of α-sodium olefin sulfonate, ethoxylated alkyl sulfonic acid
4 parts of sodium, 0.3 part of tribenzyl phenol polyethenoxy ether, 0.5 part of polyacrylamide, 0.3 part of ABS surface activating agent, 2.8 parts of xanthan gum,
60 parts of water；
The method for preparing polyoxyethylene groups ester copolymer: polyvinylpyrrolidone, α-olefin sulfonic acid are added in a kettle
Sodium and 30% water, stirring and dissolving, constant temperature 10min after reaction kettle is warming up to 40 DEG C, sequentially add polyoxyethylene stearic acid ester,
Ethoxylated alkyl sodium sulfonate, tribenzyl phenol polyethenoxy ether, polyacrylamide, ABS surface activating agent, xanthan gum stirring and dissolving
With remaining water, constant temperature 10min is after being warming up to 60 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are to be uniformly mixed be configured to oil reservoir at 100: 0.8 by weight
Liquid is squeezed into, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, build the pressure 48h；Then using pumping unit or the lifting extraction of screw pump lifting equipment
Polyoxyethylene groups ester copolymer and triblock polyether copolymer is added in well liquid, the annular space between oil well oil conduit and casing, simultaneously
Lifting extraction well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the triblock polyether copolymerization
The weight ratio of object is 4.2:3.5:3.5；The nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and three block
The total weight and oil well liquid-producing volume ratio of copolyether are 3 grams: 1.2 liters.
Comparative example 1
Oil exploitation method is substantially the same manner as Example 1, the difference is that, nonyl phenol is not used during oil exploitation
Polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer.
Comparative example 2
Oil exploitation method is substantially the same manner as Example 1, the difference is that, nonyl phenol is not used during oil exploitation
Polyoxyethylene ether polymer.
Comparative example 3
Oil exploitation method is substantially the same manner as Example 1, the difference is that, polyoxy second is not used during oil exploitation
Alkenyl ester copolymer.
Comparative example 4
Oil exploitation method is substantially the same manner as Example 1, the difference is that, three block is not used during oil exploitation
Copolyether.
Comparative example 5
Using side disclosed in Chinese patent literature " a kind of method of thickened oil recovery (patent No. ZL 200810117487.6) "
Method carries out oil exploitation.
Comparative example 6
Oil exploitation method is substantially the same manner as Example 1, the difference is that, it is poly- using nonyl phenol during oil exploitation
The weight ratio of ethylene oxide ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer is 1:8:9.
Comparative example 7
Oil exploitation method is substantially the same manner as Example 1, the difference is that, it is poly- using nonyl phenol during oil exploitation
The weight ratio of ethylene oxide ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer is 9:1:2.
Comparative example 8
Oil exploitation method is substantially the same manner as Example 1, the difference is that, it is poly- using nonyl phenol during oil exploitation
The weight ratio of ethylene oxide ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer is 1:8:1.
According to Shengli Petroleum Administration Bureau company standard Q/SL1419-1999 " crude oil demulsification dehydration service check method tool plug
Graduated cylinder method " dehydration rate for using the crude oil Produced Liquid of the acquisition of method described in embodiment 1-3 and comparative example 1-8 is measured, through detecting
Crude oil Produced Liquid density is (50 DEG C) 0.9879/g.cm3, viscosity is 3.432 × 104, moisture content 30.1%, by the de- of 5h
Water, detects the moisture content of crude oil Produced Liquid again, and calculates dehydration rate, as a result see the table below shown.
| Experimental project | Dehydration rate (%) |
| Embodiment 1 | 99.36 |
| Embodiment 2 | 98.03 |
| Embodiment 3 | 98.85 |
| Comparative example 1 | 3.45 |
| Comparative example 2 | 97.83 |
| Comparative example 3 | 97.98 |
| Comparative example 4 | 98.23 |
| Comparative example 5 | 95.69 |
| Comparative example 6 | 95.86 |
| Comparative example 7 | 96.32 |
| Comparative example 8 | 96.74 |
As seen from the above table: (1) by the data of embodiment 1-3 and comparative example 5 as it can be seen that being obtained using the method for embodiment 1-3
To crude oil Produced Liquid the dehydration rate of crude oil Produced Liquid that is obtained significantly greater than with the method for comparative example 5 of dehydration rate；Simultaneously
By the data of embodiment 1-3 as it can be seen that embodiment 1 is optimum embodiment.
(2) by embodiment 1 and the data of comparative example 1-4 as it can be seen that nonylphenol polyoxyethylene ether polymer, polyoxyethylene base ester
Copolymer and triblock polyether copolymer play synergistic effect during thickened oil recovery, and collaboration improves crude oil Produced Liquid
Dehydration rate；This is:
The triblock polyether copolymer that the present invention uses has very high surface-active, and hydrophilic group has positive charge, can
To neutralize water drops surface negative electrical charge, the alkyl chain in molecule possesses lipophilicity, is easy to be adsorbed on oil droplets, plays breaking emulsion and dewatering
Effect, while triblock polyether copolymer is easy to be adsorbed on oil-water interfacial film, reduces the stability of film, convenient for grease point
From.Contain polar hydrophilic group such as hydroxyl, sulfonic group, ether in the nonylphenol polyoxyethylene ether polymer molecule that the present invention uses
Base, alkyl and non-polar hydrophobic groups alkyl, therefore there is surface-active, micella can be formed in water, it is total with triblock polyether
There are competitive Adsorption between polymers molecule, the space behavior and electrostatic repulsion of nonylphenol polyoxyethylene ether polymer molecule make
It obtains more hydrone to penetrate into inside triblock polyether copolymer molecule micella, triblock polyether copolymer molecule is caused to be formed
Micellar structure it is more open, aggregation number of micelle reduce so that crude oil Produced Liquid is easy to be dehydrated；In addition, the nonyl phenol of small molecule
Polyoxyethylene ether polymer is easy to the Preferential adsorption on oil-water interfaces, inhibits triblock polyether copolymer molecule poly- on interface
Collection effect, causes the molecules align on interface loose, and interfacial film strength weakens, and nonylphenol polyoxyethylene ether polymer and three embedding
The repulsive interaction generated between section copolyether molecule, reduces triblock polyether copolymer and nonylphenol polyoxyethylene ether is poly-
Absorption of the adduct molecule in crude oil interface, it is suppressed that film spreading amount facilitates the demulsification of crude oil Produced Liquid, so that dehydration rate liter
It is high.Alkyl has lipophilicity, the mixing with triblock polyether copolymer in polyoxyethylene groups ester copolymer used in the present invention
It is generated in system, between the hydrophobic part of triblock polyether copolymer and the hydrophobic grouping of polyoxyethylene groups ester copolymer strong hydrophobic
Effect forms mixed micelle, due to containing polyoxyethylene stearic acid ester in polyoxyethylene groups ester copolymer ingredient, in lipid material
The micellar structure that existing steric hindrance itself causes triblock polyether copolymer molecule to be formed is of a relatively loose, and partial moisture seeps
Thoroughly to inside micella, interfacial film strength weakens, and film spreading amount reduces, and dehydration rate improves.
(3) by the data of comparative example 6-8 as it can be seen that nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and
The weight ratio of triblock polyether copolymer is not at (4.2-6.4): (3.5-4.6): when in (3.5-5.8) range, opening for petroleum
The numerical value of dehydration rate and embodiment 1-3 when adopting in crude oil Produced Liquid is very different, and existing much smaller than the numerical value of embodiment 1-3
There is the numerical value of technology (comparative example 5) suitable.Nonylphenol polyoxyethylene ether polymer of the present invention, polyoxyethylene groups ester copolymer and three
For block polyether copolymer as reinforcement system, it is total that embodiment 1-3 controls nonylphenol polyoxyethylene ether polymer, polyoxyethylene base ester
The weight ratio of polymers and triblock polyether copolymer is (4.2-6.4): (3.5-4.6): (3.5-5.8), is realized in reinforcement system
It is middle to be adsorbed on oil droplets using triblock polyether copolymer and play the role of breaking emulsion and dewatering；Nonylphenol polyoxyethylene ether polymer
Space behavior and electrostatic repulsion cause triblock polyether copolymer molecule formed micellar structure it is more open；Polyoxy second
The space steric effect of alkenyl ester copolymer causes so that spies such as partial moisture penetrate into inside micella, and interfacial film strength weakens
Point, so that the reinforcement that nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and triblock polyether copolymer are constituted
System improves the dehydration rate of crude oil Produced Liquid in oil exploitation of the invention.
The above content is it cannot be assumed that present invention specific implementation is only limited to these instructions, for the technical field of the invention
Those of ordinary skill for, under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all answers
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (8)
1. a kind of oil exploitation method, which comprises the following steps:
S1: preparation nonylphenol polyoxyethylene ether polymer, the nonylphenol polyoxyethylene ether polymer includes following component: hydrogen-oxygen
Change sodium, polyethylene polyamine, sodium carbonate, nonylphenol polyoxyethylene ether sodium sulfonate, sodium bicarbonate, surplus is water；
Prepare nonylphenol polyoxyethylene ether polymer method: by sodium hydroxide, three kinds of components of sodium carbonate and sodium bicarbonate press than
Example addition reaction kettle is added 20% water, 30-40min is stirred, then in the feelings being stirred continuously after being slowly warming up to 50-60 DEG C
Polyethylene polyamine, nonylphenol polyoxyethylene ether sodium sulfonate are sequentially added under condition, are eventually adding water, it is stirring while adding, stir 20-
25min stops heating, is cooled to room temperature discharging, obtains nonylphenol polyoxyethylene ether polymer；
S2: preparing triblock polyether copolymer, and the triblock polyether copolymer includes following component: potassium hydroxide, epoxy third
Alkane, ethylene oxide, polyethylene polyamine；
The method for preparing triblock polyether copolymer: being added catalyst potassium hydroxide in a high pressure reaction kettle, is filled with nitrogen, takes out true
Sky is warming up to 125-135 DEG C, then 60% propylene oxide is added dropwise into reaction kettle, control the pressure of reaction kettle in 0.5MPa hereinafter,
Polyethylene polyamine reaction 1-2h is added, obtains the oleophylic head of polypropylene oxide；Temperature is adjusted to 115-125 DEG C, again to reaction
Ethylene oxide is added dropwise in kettle, controls reactor pressure in 0.5MPa hereinafter, pressure reduction in and reaction kettle complete to material reaction
To initial value, polyethylene polyamine is added, the reaction was continued at such a temperature 1-2h obtains polyethylene oxide hydrophilic head, then heat up
To 125-135 DEG C, then 40% propylene oxide is added dropwise into reaction kettle, controls the pressure of reaction kettle in 0.5MPa hereinafter, reaction 1-
2h cools down after the reaction was completed, obtains white solid three block type polyethers triblock polyether copolymer；
S3: preparation polyoxyethylene groups ester copolymer, the polyoxyethylene groups ester copolymer includes following component: polyvinylpyrrolidine
Ketone, polyoxyethylene stearic acid ester, α-sodium olefin sulfonate, ethoxylated alkyl sodium sulfonate, emulsifier, stabilizer, ABS surface activity
Agent, xanthan gum；
Prepare polyoxyethylene groups ester copolymer method: in a kettle be added polyvinylpyrrolidone, α-sodium olefin sulfonate and
30% water, stirring and dissolving, constant temperature 10min after reaction kettle is warming up to 40-45 DEG C, sequentially add polyoxyethylene stearic acid ester,
Ethoxylated alkyl sodium sulfonate, emulsifier, stabilizer, ABS surface activating agent, xanthan gum stirring and dissolving and remaining water, are warming up to
Constant temperature 10min is after 60-65 DEG C to get polyoxyethylene groups ester copolymer；
S4: recover the oil: water and nonylphenol polyoxyethylene ether polymer are 100: 0.8-1.5 to be uniformly mixed and be configured to oil reservoir by weight
Liquid is squeezed into, then oil reservoir is squeezed into liquid and squeezes into oil reservoir, build the pressure 24-48h；Then it is adopted using pumping unit or the lifting of screw pump lifting equipment
Polyoxyethylene groups ester copolymer and triblock polyether copolymer is added in well liquid out, the annular space between oil well oil conduit and casing, together
Shi Jusheng produces well liquid；Nonylphenol polyoxyethylene ether polymer, polyoxyethylene groups ester copolymer and the triblock polyether is total
The weight ratio of polymers is (4.2-6.4): (3.5-4.6): (3.5-5.8).
2. oil exploitation method according to claim 1, which is characterized in that the nonylphenol polyoxyethylene ether polymerization
Object, polyoxyethylene groups ester copolymer and triblock polyether copolymer and oil well liquid-producing volume ratio are 5.3:4.2:4.6.
3. oil exploitation method according to claim 1, which is characterized in that the nonylphenol polyoxyethylene ether polymer with
Parts by weight are unit, including following component: 2-6 parts of sodium hydroxide, 3-7 parts of polyethylene polyamine, 7-12 parts of sodium carbonate, nonyl phenol are poly-
3-6 parts of ethylene oxide ether sulfonic acid sodium, 4-8 parts of sodium bicarbonate, 60-80 parts of water.
4. oil exploitation method according to claim 1, which is characterized in that the triblock polyether copolymer is with parts by weight
For unit, including following component: 3-5 parts of potassium hydroxide, 4-8 parts of propylene oxide, 1-4 parts of ethylene oxide, polyethylene polyamine 2-3
Part.
5. oil exploitation method according to claim 1, which is characterized in that the polyoxyethylene groups ester copolymer is with weight
Part is unit, including following component: 5-8 parts of polyvinylpyrrolidone, 2-4 parts of polyoxyethylene stearic acid ester, α-sodium olefin sulfonate
1-5 parts, 2-6 parts of ethoxylated alkyl sodium sulfonate, 0.3-0.7 parts of emulsifier, 0.5-0.8 parts of stabilizer, ABS surface activating agent
0.2-0.5 parts, 2.4-2.8 parts of xanthan gum, 50-70 parts of water.
6. oil exploitation method according to claim 1 or 5, which is characterized in that the emulsifier is tribenzyl phenol polyoxy
One of vinethene, alkyl phenol polyoxyethylene ether polyethenoxy ether.
7. oil exploitation method according to claim 1 or 5, which is characterized in that the stabilizer is carboxymethyl cellulose
One of sodium, polyacrylamide.
8. oil exploitation method according to claim 1, which is characterized in that the nonylphenol polyoxyethylene ether polymer,
The total weight of polyoxyethylene groups ester copolymer and triblock polyether copolymer and oil well liquid-producing volume ratio are 1-3 grams: 1-1.2 liter.
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| CN201910231696.1A CN109973064A (en) | 2019-03-26 | 2019-03-26 | A kind of oil exploitation method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977470A (en) * | 1975-02-27 | 1976-08-31 | Mobil Oil Corporation | Oil recovery by alkaline-sulfonate waterflooding |
| CN101190959A (en) * | 2006-11-29 | 2008-06-04 | 巴斯福股份公司 | Methods of producing water-soluble, non-turbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer |
| CN101328798A (en) * | 2008-07-31 | 2008-12-24 | 中国石油天然气股份有限公司 | Method for exploiting thick oil |
| CN103626987A (en) * | 2013-12-13 | 2014-03-12 | 山东大学 | Preparation method of polymer flooding produced fluid demulsifier |
| CN104277178A (en) * | 2014-10-11 | 2015-01-14 | 重庆斯泰克材料技术有限公司 | Preparation method of vinyl pyrrolidone-vinyl acetate copolymer |
| CN104312565A (en) * | 2014-09-12 | 2015-01-28 | 大连东方创新科技有限公司 | Block copolymer-reinforced betaine surfactant composite flooding system and use thereof |
| CN105754577A (en) * | 2016-02-19 | 2016-07-13 | 黑龙江勇峰化工添加剂有限公司 | Novel efficient foaming flowback agent |
| CN106386799A (en) * | 2016-08-31 | 2017-02-15 | 北京明德立达农业科技有限公司 | Oil-based suspension agent and preparation method and application thereof |
-
2019
- 2019-03-26 CN CN201910231696.1A patent/CN109973064A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977470A (en) * | 1975-02-27 | 1976-08-31 | Mobil Oil Corporation | Oil recovery by alkaline-sulfonate waterflooding |
| CN101190959A (en) * | 2006-11-29 | 2008-06-04 | 巴斯福股份公司 | Methods of producing water-soluble, non-turbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer |
| CN101328798A (en) * | 2008-07-31 | 2008-12-24 | 中国石油天然气股份有限公司 | Method for exploiting thick oil |
| CN103626987A (en) * | 2013-12-13 | 2014-03-12 | 山东大学 | Preparation method of polymer flooding produced fluid demulsifier |
| CN104312565A (en) * | 2014-09-12 | 2015-01-28 | 大连东方创新科技有限公司 | Block copolymer-reinforced betaine surfactant composite flooding system and use thereof |
| CN104277178A (en) * | 2014-10-11 | 2015-01-14 | 重庆斯泰克材料技术有限公司 | Preparation method of vinyl pyrrolidone-vinyl acetate copolymer |
| CN105754577A (en) * | 2016-02-19 | 2016-07-13 | 黑龙江勇峰化工添加剂有限公司 | Novel efficient foaming flowback agent |
| CN106386799A (en) * | 2016-08-31 | 2017-02-15 | 北京明德立达农业科技有限公司 | Oil-based suspension agent and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘勇等: "聚醚型破乳剂对陕北原油破乳脱水性能的试验研究", 《化学工程师》 * |
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