CN1266369C - Method of improving permeability of underground petroleum-containing formation - Google Patents
Method of improving permeability of underground petroleum-containing formation Download PDFInfo
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- CN1266369C CN1266369C CNB00813085XA CN00813085A CN1266369C CN 1266369 C CN1266369 C CN 1266369C CN B00813085X A CNB00813085X A CN B00813085XA CN 00813085 A CN00813085 A CN 00813085A CN 1266369 C CN1266369 C CN 1266369C
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- moles
- alkyl
- composition
- alcohol
- straight chain
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000035699 permeability Effects 0.000 title claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 18
- 239000003208 petroleum Substances 0.000 title claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 84
- -1 alkyl glycoside Chemical class 0.000 claims abstract description 38
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims abstract description 16
- 229930182470 glycoside Natural products 0.000 claims abstract description 4
- 238000007046 ethoxylation reaction Methods 0.000 claims description 34
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 125000000217 alkyl group Chemical group 0.000 claims description 26
- 239000003921 oil Substances 0.000 claims description 25
- 239000004094 surface-active agent Substances 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 18
- 239000003093 cationic surfactant Substances 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 150000001298 alcohols Chemical class 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 9
- 244000060011 Cocos nucifera Species 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 235000019270 ammonium chloride Nutrition 0.000 claims description 9
- 239000003760 tallow Substances 0.000 claims description 9
- 125000002769 thiazolinyl group Chemical group 0.000 claims description 9
- 229930182478 glucoside Natural products 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 6
- IPTLKMXBROVJJF-UHFFFAOYSA-N azanium;methyl sulfate Chemical compound N.COS(O)(=O)=O IPTLKMXBROVJJF-UHFFFAOYSA-N 0.000 claims description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 150000002772 monosaccharides Chemical group 0.000 claims description 6
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 229920001451 polypropylene glycol Polymers 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 4
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 125000003158 alcohol group Chemical group 0.000 claims description 3
- WBOXZLRDVULSGV-UHFFFAOYSA-N azanium;ethyl sulfate Chemical compound [H+].N.CCOS([O-])(=O)=O WBOXZLRDVULSGV-UHFFFAOYSA-N 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 229940096386 coconut alcohol Drugs 0.000 claims description 3
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 claims description 3
- 229920001282 polysaccharide Polymers 0.000 claims description 3
- 239000005017 polysaccharide Substances 0.000 claims description 3
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 150000001450 anions Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 125000005456 glyceride group Chemical group 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- XSEOYPMPHHCUBN-FGYWBSQSSA-N hydroxylated lecithin Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC(COP([O-])(=O)OCC[N+](C)(C)C)COC(=O)CCCCCCC[C@@H](O)[C@H](O)CCCCCCCC XSEOYPMPHHCUBN-FGYWBSQSSA-N 0.000 claims description 2
- 239000000787 lecithin Substances 0.000 claims description 2
- 229940067606 lecithin Drugs 0.000 claims description 2
- 235000010445 lecithin Nutrition 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 150000001767 cationic compounds Chemical class 0.000 abstract 1
- 238000004391 petroleum recovery Methods 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000011499 joint compound Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 239000004064 cosurfactant Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
-
- 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
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention generally relates to a method and a composition useful in restoring the permeability of a porous underground petroleum-containing formation. Restoring permeability to the formation enhances the injectivity thereby accelerating petroleum recovery. The method of the invention comprises treating said formation with a composition which comprises a combination of at least one nonionic compound, preferably an alkoxylated alcohol, with at least one cationic compound, preferably a quaternary ammonium compound, in an amount effective to improve the permeability of the formation. The composition may also optionally contain an alkyl glycoside.
Description
The present invention requires in the priority of the U.S. Provisional Patent Application 60/155983 of submission on September 24th, 1999.
Technical field
The present invention relates to be used to improve the composition and the method for the injectability of water injection well, recover the permeability on stratum thus and improve oil recovery by the water drive method.
Background technology
The exploitation of oil is normally by earth penetrating and make fluid and one or more well formation fluid be communicated with, and permission or pumping oil flow realize to ground then.This exploitation method is called the primary oil recovery method, and this method is merely able to the 20-30% of the oil that exists in the productive formation usually.
In case after primary oil recovery stops, requiring to adopt for example water driving technology of secondary oil recovery method.Secondary oil recovery is communicated with and realizes by utilizing a water injection well earth penetrating and setting up fluid.Water and steam are injected in the water injection well then, and oil and water are exploited out from recovery well.But the oil exploitation rate in water-well is very low.Particularly in the porous stratum of oil-containing, have near the hole in the zone at well place and to be synthesized or trend that biological substance stops up, this has limited fluid liquid and has for example driven liquid and flow in the water injection well in the oil exploitation process.As time goes on, the gathering of plugging material is enough to reduce greatly the stratum for the permeability that drives liquid, and this reduction can reduce the coefficient of mining of oil greatly.
People have proposed many methods, are applied to some water drive process to improve the injectability of water injection well at some subterranean formation zone; In these subterranean formation zones, owing to the existence of residual oil in the space of stratum porous causes these stratum to have the water permeability lower than formation absolute permeability.For example, United States Patent (USP) 4,690 has been described a kind of method that is used to improve the water injection well injectability in 217, and this method comprises that injection contains the aqueous fluid of surfactant of effective dose in well.The surfactant that uses in this patent document is an anion surfactant.
United States Patent (USP) 4,464 discloses a kind of method in 268, is used to recover the permeability of the water injection well that stopped up by residual polymer and/or organic matter residue.This method comprises with a kind of aqueous solution handles well a period of time, and the described aqueous solution comprises hydrogen peroxide and the acid that is selected from hydrochloric acid, hydrofluoric acid and acetic acid, also chooses wantonly to comprise a kind of surfactant.
United States Patent (USP) 5,374,361 disclose a kind of composition that is used to clean well, and said composition comprises alkyl poly glucoside and a kind of cosurfactant that is selected from straight chained alkyl ethoxylate or alkyl phenyl ethoxylate, and caustic alkali.
United States Patent (USP) 5,830,831 disclose a kind of composition that is used to clean well, and said composition mainly is included as the first surface activating agent of alkyl poly glucoside and the second surface activating agent that mainly is made of at least a alkyl poly glucoside and a kind of straight chain ethoxylated alcohol.
United States Patent (USP) 4,514,310 disclose the method for a kind of compositions-treated well of a kind of usefulness, and the major part of said composition comprises a kind of nonaqueous solvents that contains the N-N-methyl-2-2-pyrrolidone N-of at least 50% (weight).
United States Patent (USP) 4,668,408 disclose a kind of composition that contains paraffin of handling well.Said composition comprises a kind of water miscible ethoxylated alkyl phenols and a kind of liquid mixture that contains to the alcohol of four carbon atom.
United States Patent (USP) 5,501,276 disclose a kind of borehole wall removing gelation and the drilling fluid of dehydration and method and composition of filter cake that is used for from well.Said composition comprises a kind of aqueous solution that is selected from the sugar of monoglyceride, diglyceride, triglyceride and composition thereof.
At last, United States Patent (USP) 5,678,631 disclose a kind of chemical addition agent that is used to clean well, and this additive comprises a kind of ether amine, alkene alcohol and water.
One object of the present invention just provides a kind of method of improved and environmental protection that is used to recover the water injection well permeability of being stopped up by various biologies and synthetic organic matter residue and is used to improve the whole recovery ratio of secondary oil recovery method.This purpose and other purpose are realized by method and composition of the present invention.
Summary of the invention
Present invention relates in general to a kind of method of permeability of the underground petroleum-containing formation that recovers porous, thereby improve the injectability of water injection well, improve oil recovery.This method generally includes with the described stratum of a kind of compositions-treated, and said composition comprises at least a non-ionic surface active agent and at least a cationic surfactant mixture according to a certain percentage, and its concentration can be recovered the permeability on stratum effectively.
Detailed description of the invention
Method and composition of the present invention is used to remove near remaining drilling fluid, mud, mud, paraffin, mud solid phase, biology or the synthetic solid phase or the similar item of the subterranean formation zone of water injection well well, thereby recovers the permeability of subsurface formations.This method generally includes with a kind of compositions-treated stratum, said composition comprises at least a non-ionic surface active agent and at least a cationic surfactant mixture according to a certain percentage, so that improve the permeability of the underground petroleum-containing formation of porous, to improve oil recovery.Thin compound of the present invention is also very effective when the well of cleaning part obstruction or obturation.
Non-ionic surface active agent of the present invention is preferably selected from alkanolamide, alcohol alcoxylates, alkoxylated amines, alkyl phenyl polyethoxylate, lecithin, hydroxylated lecithin, fatty acid ester, glyceride and ethoxylate, glycol ester and ethoxylate thereof, propylene glycol ester, sorbitan, ethoxylation sorbitan, polysaccharide glycosides and similar item, and their mixture.Alcohol alcoxylates, especially ethoxylated alcohol randomly carefully close with (alkyl) polysaccharide glycosides, are best non-ionic surface active agents.
In the present invention the ethoxylated alcohol of Shi Yonging preferably with the straight chain of the ethoxylation of 2 to 12 moles of ethylene oxide reactions or the C of side chain
8-C
18Alcohol.Particularly preferably be following ethoxylated alcohol:
R-O-(CH
2CH
2O)
z-H (I)
Wherein, R is C
8-C
30Saturated or unsaturated, side chain or the alkyl of straight chain, perhaps by molecular formula A--O (CH
2CH
2O)
zThe alkyl phenyl of expression, wherein, A is C
8-C
30The alkyl of saturated or unsaturated, side chain or straight chain, preferred C
9-C
12The alkyl of straight chain or side chain, and z is an integer of 1 to 30.
Below alcohol be particularly preferred: by the laruyl alcohol of 3 moles of ethylene oxide (EO) ethoxylation, by the coconut alcohol (Coco alcohol) of 3 moles of ethylene oxide ethoxylations, by the octadecanol of 5 moles of ethylene oxide ethoxylations, by the C of the mixing of 7 moles of ethylene oxide ethoxylations
12-C
15Alcohol, by the C of 7 moles oxirane ethoxylations
11-C
15Secondary alcohol, by the C of the mixing of 6 moles oxirane ethoxylations
9-C
11Straight chain alcohol, by the C of 4 moles oxirane ethoxylations
9-C
11Alcohol or similar item.Special preferred narrow scope, the ethoxylate of Fen Saning not too.Non-ionic surface active agent composition of the present invention can be prepared by the whole bag of tricks in those of ordinary skill in the art's known prior art.In addition, the many non-ionic surface active agents that use among the present invention are commercially available.
Preferably (gathering) the alkylglycoside non-ionic surface active agent is represented by formula III or IV:
R
4(CH
2)
y-O-G
xH (III)
Wherein, R
4Be to have the straight chain of 8 to 21 carbon atoms or the alkyl or the thiazolinyl of side chain, G is a monosaccharide residue, and x and y are selected from 1-5.
Wherein, R
4Be straight chain or branched alkyl or thiazolinyl with 8 to 21 carbon atoms, R
5Be hydrogen or straight chain or branched alkyl or the thiazolinyl with 8 to 21 carbon atoms, G is a monosaccharide residue, and x and y are selected from 1-5.
Cationic surfactant of the present invention is preferably selected from primary amine, secondary amine and tertiary amine, ester amine, acid amides, quaternary ammonium salt, the ester that contains quaternary ammonium compound, acid amides quaternary ammonium compound, Fixanol etc.Most preferred cationic surfactants is a quaternary ammonium compound.A class quaternary ammonium compound of Shi Yonging is represented by following general formula in the present invention:
Wherein, R
1Be saturated or unsaturated, straight chain or branched alkyl, be preferably the coconut alkyl with 8 to 22 carbon atoms; R
2Be C
1To C
8Alkyl, 2-ethylhexyl, ethoxy, hydroxypropyl, be preferably methyl, ethyl or propyl group; R
3Be selected from R
1, R
2Perhaps following formula group:
Wherein, R
5And R
6Be independently selected from hydrogen or C
1To C
6Alkyl, and m+n is the integer of 2-80; R
4Be selected from R
2Or R
3And X
-It is an anion.
Preferred anionic surfactants includes, but are not limited to Cl
-And methylsulfate (MeSO
4 -), acetate or similar item.
Cationic surfactant composition of the present invention is two (ethoxylation) quaternary ammonium compound preferably, includes, but are not limited to: octadecanoyl methyl two (ethyoxyl) ammonium chloride (12 moles of EO), octadecanoyl ethyl two (ethyoxyl) ethyl sulfuric acid ammonium (15 moles of EO), tallow methyl two (ethyoxyl) methylsulfuric acid ammonium (15 moles of EO), tallow ethyl two (ethyoxyl) methylsulfuric acid ammonium (15 moles of EO), hydrogenated tallow methyl two (ethyoxyl) ammonium chloride (15 moles of EO), coconut methyl two (ethyoxyl) ammonium chloride (20 moles of EO) and similar item.The mixture of these compounds also can be used for the present invention.In addition, in above-mentioned description, the quantity of ethoxylation is the quantity of total ethoxylation of molecule.One of ordinary skill in the art will appreciate that these values can change, still within the present invention's spirit and protection domain.In addition, those of ordinary skills know that m and n can change but their summation has appreciable impact to HLB.Ammonium compounds among the present invention preferably has the HLB of 14.00-22.00, and is hydrophilic.A kind of particularly preferred cationic surfactant is coconut methyl two (ethoxylation) (a 15) chlorination quaternary ammonium, can obtain this product from Akzo Nobel chemicals Co., Ltd, and its trade mark is Ethoquad C/25.
The mixture of solvent or solvent also can randomly be applied in the composition of the present invention.If use solvent, this solvent is preferably selected from for example for example ethylene glycol, propane diols, diethylene glycol (DEG), DPG, polyethylene glycol, polypropylene glycol, polyethylene glycol-ethylene glycol block copolymer or similar item of methyl alcohol, ethanol, 1-propyl alcohol, 2-propyl alcohol or similar item, dihydroxylic alcohols of water, lower alcohol, with glycol ether for example 2-methyl cellosolve, diglycol monotertiary methyl ether or similar item, but be not limited to these solvents.
Composition of the present invention can also contain various optional components for example anticorrisive agent, scale inhibitor, biocide etc.
The ratio of described at least a non-ionic surface active agent and described at least a cationic surfactant is generally 4: 1 to 1: 4 according to weight ratio, is preferably 3: 1 to 1: 3.
In one embodiment, the present invention relates to a kind of method that is used to improve the permeability of oil bearing bed, this method comprises with the described stratum of a kind of compositions-treated, said composition comprises the ethoxylated alcohol of 20-80%, the quaternary ammonium compound of 10-60%, with optional 30% APG and optional a kind of solvent at the most.
In the another one embodiment, the present invention proposes a kind of method that is used to improve the permeability of oil bearing bed, this method comprises with the described stratum of a kind of compositions-treated, said composition comprises the ethoxylated alcohol of 25-65%, the quaternary ammonium compound of 20-60% and optional 30% APG and optional a kind of solvent at the most.
In another embodiment, the present invention relates to a kind of be used to the clean stratum of porous and the method for the synthetic or oil base pollutant that is close to well, this method comprises that with described stratum of a kind of compositions-treated and well said composition comprises the ethoxylation straight or branched C of the reacting ethylene oxide of at least a and 2-12 mole
8-C
18Pure, at least a quaternary ammonium compound and optional at least a APG.
The invention still further relates to and variously be used to recover the permeability of oil bearing bed and clean the composition of the well of water injection well.
In injection solution, the valid density of surface activator composition of the present invention is about 0.1% to 10% (weight) of the aqueous solution and surface activator composition, is preferably about 0.1% to 5% (weight).Can determine by those of ordinary skill in the art near the necessary injection solution amount of the cleaning plugging material of the subterranean formation zone the well.But typically, the volume of injection solution is usually less than 1% of the oil-containing reservoir pore spatial volume between water injection well and the producing well.
When handling oil well, use enough solution filling wells, and extremely arrive about 20 feet or more distance apart from 1 foot of stratal surface with a kind of solution filling porous stratum according to the present invention.Usually, the stratum about 1 of handling porous is enough to obtain a good result to about 4 feet distance.In case composition of the present invention is injected into well, just makes the static maintenance of well about 2 hours to about 96 hours or longer time.Typically, 10 to about 36 hours time is enough to allow composition of the present invention to be diffused in the hole on stratum and removes plugging material.Methodically back or backflow perhaps can be removed and/or the displacement plugging material with injection solution to remove composition of the present invention and displacement plugging material.
As selectable another mode, by make composition of the present invention from the oil pipe of well to dirty and discharge from annular space, circulate the sufficiently long time, so that treatment compositions diffuses in the stratum, with plugging material reaction and these plugging materials of displacement, and handle well with a kind of continuous method.The fluid of handling is circulation about 2 hours to about 96 hours or longer time usually, is preferably about 10 to about 36 hours.This time is enough to allow composition of the present invention to be diffused in the hole on stratum usually and removes plugging material, but those of ordinary skill in the art it will be appreciated that this time different according to stratum and plugging material, has great changes.As above-mentioned, oil well perhaps can be removed and/or the displacement plugging material with injection solution then or reflux to remove composition of the present invention and displacement plugging material.
After processing, recover water filling and exploit out oil and aqueous fluid at producing well.
In order to utilize the well of compositions-treated water injection well of the present invention, the said composition that in well, circulates off and on or continuously, with dissolving with disperse unwanted deposit, and treatment surface is to prevent following accumulation.The well of the composition of the present invention that in well, uses clean effective dose according to the temperature of the amount of the residue amount of required removing, the paraffin in the crude oil etc., productivity ratio, well with other to the conspicuous factor of those of ordinary skill in the art and different.
For continuous processing well, composition of the present invention circulates in the stratum with the speed of about 50 to 500 parts/1,000,000 parts of Petroleum Production.The circulation of composition can realize by the jacket exterior of its pumping being passed production flow line.
For batch process, composition of the present invention can add with the speed of every 5-10 days 1-5 gallons.This circulation can be carried out when water filling or carry out when production stops.
The method of other usefulness composition for improved permeability of subterranean formation of the present invention and the method for handling well are all within one skilled in the relevant art's the common practise.
Claims (26)
- Thereby 1.-kind of the injectability of improving water injection well by the permeability of recovering the stratum improves the method for oil recovery by water flooding, described method comprises usefulness-described stratum of kind of compositions-treated, described composition comprises at least-kind of non-ionic surface active agent and at least-kind of cationic surfactant, its quantity and concentration should be able to be improved the permeability on described stratum effectively, at least wherein said-kind of non-ionic surface active agent is selected from alkanolamide, alcohol alcoxylates, alkoxylated amines, the alkyl phenyl polyethoxylate, lecithin, hydroxylated lecithin, fatty acid ester, glyceride and ethoxylate thereof, glycol ester and ethoxylate thereof, propylene glycol ester, sorbitan, ethoxylation sorbitan polysaccharide glycosides and composition thereof, and at least described-kind of cationic surfactant is the ethoxylation quaternary ammonium compound.
- 2. according to the method for claim 1, described method comprises the following component i of usefulness-kind contain), ii) and the described stratum of compositions-treated iii):I) at least-and kind of non-ionic surface active agent, represent by the straight chain or the branched-chain alcoho of the ethoxylation of following formula:R-O-(CH 2CH 2O) z-H (I) wherein R is C 8-C 30Saturated or unsaturated, side chain or the alkyl of straight chain, perhaps by molecular formula A--0 (CH 2CH 2O) zThe alkyl phenyl of expression, wherein A is C 8-C 30Saturated or unsaturated, side chain or the alkyl of straight chain, and z is from 1 to 30 integer;Ii) at least-kind of following formula quaternary ammonium compound:R wherein 1Be saturated or unsaturated, straight chain or branched alkyl with 8 to 22 carbon atoms; R 2Be C 1To C 6Alkyl, 2-ethylhexyl, ethoxy, hydroxypropyl; R 3Be selected from R 1, R 2Perhaps following formula group:R wherein 5And R 6Be independently selected from hydrogen or C 1-C 6Alkyl, and m+n is the integer of 2-80; R 4Be selected from R 2Perhaps R 3And X-anion, the quantity of this quaternary ammonium compound and concentration should be able to effectively be improved the permeability on described stratum, and(iii) (gathering) alkyl glucoside of 30% weight at the most.
- 3. according to the method for claim 2, R wherein 1It is the coconut alkyl.
- 4. use at least-kind of non-ionic surface active agent according to the process of claim 1 wherein, it is the ethoxylation straight or branched C that reacts with the 2-12 moles of ethylene oxide 8-C 18Alcohol.
- 5. according to the method for claim 4, wherein said ethoxylated alcohol is selected from by the laruyl alcohol of 3 moles of ethylene oxide ethoxylations, by the coconut alcohol of 3 moles of ethylene oxide ethoxylations, by the octadecanol of 5 moles of ethylene oxide ethoxylations, by the C of the mixing of 7 moles of ethylene oxide ethoxylations 12-C 15Alcohol, by the C of 7 moles oxirane ethoxylations 11-C 15Secondary alcohol, by the C of the mixing of 6 moles oxirane ethoxylations 9-C 11Straight chain alcohol, by the C of 4 moles oxirane ethoxylations 9-C 11Pure and mild their mixture.
- 6. according to the method for claim 3, R wherein 1Be the coconut alkyl, m+n=15, R 2Be methyl, R 3Be H, X -Be Cl -Perhaps methylsulfate.
- 7. according to the process of claim 1 wherein that described quaternary ammonium compound is selected from octadecyl methyl two (ethyoxyl) ammonium chloride, 12 moles of EO; Octadecyl ethyl two (ethyoxyl) ethyl sulfuric acid ammonium, 15 moles of EO; Tallow methyl two (ethyoxyl) methylsulfuric acid ammonium, 15 moles of EO; Tallow ethyl two (ethyoxyl) methylsulfuric acid ammonium, 15 moles of EO; Hydrogenated tallow methyl two (ethyoxyl) ammonium chloride, 15 moles of EO; Coconut methyl two (ethyoxyl) ammonium chloride, 20 moles of EO and their mixture.
- 8. according to the process of claim 1 wherein that the HLB of quaternary ammonium compound is 14.00 to 22.00.
- 9. according to the process of claim 1 wherein that described composition also comprises at the most 30% formula III or (gathering) alkyl glucoside of IV:R 4(CH 2) y-O-G xH (III) is R wherein 4Be straight chain or branched alkyl or the thiazolinyl with 8 to 21 carbon atoms, G is a monosaccharide residue, and x and y are selected from 1-5;R wherein 4Be straight chain or branched alkyl or thiazolinyl with 8 to 21 carbon atoms, R 5Be hydrogen or straight chain or branched alkyl or the thiazolinyl with 8 to 21 carbon atoms, G is a monosaccharide residue, and x and y are selected from 1-5.
- According to the process of claim 1 wherein described composition also comprise-kind or multiple solvent.
- 11. according to the method for claim 10, wherein said solvent is selected from water, lower alcohol and glycol ether and their mixture.
- 12. according to the method for claim 11, wherein said solvent is selected from methyl alcohol, ethanol, 1-propyl alcohol, 2-propyl alcohol or similar item, dihydroxylic alcohols for example ethylene glycol, propane diols, diethylene glycol (DEG), DPG, polyethylene glycol, polypropylene glycol, polyethylene glycol polypropylene glycol block copolymer and their mixture.
- 13. the weight ratio of-kind of non-ionic surface active agent at least described according to the process of claim 1 wherein and at least described-kind of cationic surfactant is 4: 1 to 1: 4.
- 14. according to the process of claim 1 wherein that the described composition that contains at least described-kind of non-ionic surface active agent and at least described-kind of cationic surfactant was diluted to the concentration of 0.1% to 10% weight before injecting the stratum.
- 15.-kind be used to recover the Aquo-composition of the permeability of underground petroleum-containing formation, comprising:I) at least-and kind of non-ionic surface active agent, represent by the straight chain or the branched-chain alcoho of the ethoxylation of following formula:R-O-(CH 2CH 2O) z-H (I) wherein R is C 8-C 30Saturated or unsaturated, side chain or the alkyl of straight chain, perhaps by molecular formulaO (CH 2CH 2O) zThe alkyl phenyl of expression, wherein A is C 8-C 30Saturated or unsaturated, side chain or the alkyl of straight chain, and z is from 1 to 30 integer;Ii) at least-cationic surfactant of kind of following formula quaternary ammonium compound:R wherein 1Be saturated or unsaturated, straight chain or branched alkyl with 8 to 22 carbon atoms; R 2Be C 1To C 6Alkyl, 2-ethylhexyl, ethoxy, hydroxypropyl; R 3Be selected from R 1, R 2Perhaps following formula group:R wherein 5And R 6Be independently selected from hydrogen or C 1-C 6Alkyl, and m+n is the integer of 2-80; R 4Be selected from R 2Perhaps R 3And X -Be an anion, and(iii) optional at least-kind of (gathering) alkyl glucoside.
- 16. according to the composition of claim 15, wherein R 1It is the coconut alkyl.
- 17. according to the composition of claim 15, wherein use at least a non-ionic surface active agent, it is the ethoxylation straight or branched C that reacts with the 2-12 moles of ethylene oxide 8-C 18Alcohol.
- 18. according to the composition of claim 15, wherein A is saturated or unsaturated, straight or branched C 9-C 12Alkyl.
- 19. according to the composition of claim 17, wherein said ethoxylated alcohol is selected from by the laruyl alcohol of 3 moles of ethylene oxide ethoxylations, by the coconut alcohol of 3 moles of ethylene oxide ethoxylations, by the octadecanol of 5 moles of ethylene oxide ethoxylations, by the C of the mixing of 7 moles of ethylene oxide ethoxylations 12-C 15Alcohol, by the C of 7 moles oxirane ethoxylations 11-C 15Secondary alcohol, by the C of the mixing of 6 moles oxirane ethoxylations 9-C 11Straight chain alcohol, by the C of 4 moles oxirane ethoxylations 9-C 11Pure and mild their mixture.
- 20. according to the composition of claim 15, wherein R 1Be the coconut alkyl, m+n=15, R 2Be methyl, R 3Be H, X -Be Cl -Perhaps methylsulfate.
- 21. according to the composition of claim 15, wherein said quaternary ammonium compound is selected from octadecyl methyl two (ethyoxyl) ammonium chloride, 12 moles of EO; Octadecyl ethyl two (ethyoxyl) ethyl sulfuric acid ammonium, 15 moles of EO; Tallow methyl two (ethyoxyl) methylsulfuric acid ammonium, 15 moles of EO; Tallow ethyl two (ethyoxyl) methylsulfuric acid ammonium, 15 moles of EO; Hydrogenated tallow methyl two (ethyoxyl) ammonium chloride, 15 moles of EO; Coconut methyl two (ethyoxyl) ammonium chloride, 20 moles of EO and their mixture.
- 22. according to the composition of claim 15, wherein the HLB of quaternary ammonium compound is 14.00 to 22.00.
- 23. according to the composition of claim 15, wherein said composition also randomly comprises (gathering) alkyl glucoside of formula III or IV:R 4(CH 2) y-O-G xH (III) is R wherein 4Be straight chain or branched alkyl or the thiazolinyl with 8 to 21 carbon atoms, G is a monosaccharide residue, and x and y are selected from 1-5;R wherein 4Be straight chain or branched alkyl or thiazolinyl with 8 to 21 carbon atoms, R 5Be hydrogen or straight chain or branched alkyl or the thiazolinyl with 8 to 21 carbon atoms, G is a monosaccharide residue, and x and y are selected from 1-5.
- 24. composition according to claim 15, wherein said composition also randomly comprises-kind or multiple solvent, be selected from water, methyl alcohol, ethanol, 1-propyl alcohol, 2-propyl alcohol or similar item, dihydroxylic alcohols for example ethylene glycol, propane diols, diethylene glycol (DEG), DPG, polyethylene glycol, polypropylene glycol, polyethylene glycol polypropylene glycol block copolymer and their mixture.
- 25. according to the composition of claim 15, the weight ratio of at least wherein said-kind of non-ionic surface active agent and at least described-kind of cationic surfactant is 4: 1 to 1: 4.
- 26. according to the composition of claim 15, the described composition that wherein contains at least described-kind of non-ionic surface active agent and at least described-kind of cationic surfactant was diluted to the concentration of 0.1% to 10% weight before injecting the stratum.
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| US15598399P | 1999-09-24 | 1999-09-24 | |
| US60/155,983 | 1999-09-24 |
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| CN1266369C true CN1266369C (en) | 2006-07-26 |
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| CNB00813085XA Expired - Lifetime CN1266369C (en) | 1999-09-24 | 2000-09-15 | Method of improving permeability of underground petroleum-containing formation |
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| CN (1) | CN1266369C (en) |
| AR (1) | AR025758A1 (en) |
| AU (1) | AU773820C (en) |
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| WO (1) | WO2001023703A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249022A (en) * | 2017-02-03 | 2019-09-17 | 沙特阿拉伯石油公司 | Drilling fluid composition and its application method with enhancing rheological characteristic |
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| US7183239B2 (en) | 2001-12-12 | 2007-02-27 | Clearwater International, Llc | Gel plugs and pigs for pipeline use |
| US7205262B2 (en) | 2001-12-12 | 2007-04-17 | Weatherford/Lamb, Inc. | Friction reducing composition and method |
| US7405188B2 (en) | 2001-12-12 | 2008-07-29 | Wsp Chemicals & Technology, Llc | Polymeric gel system and compositions for treating keratin substrates containing same |
| US8273693B2 (en) | 2001-12-12 | 2012-09-25 | Clearwater International Llc | Polymeric gel system and methods for making and using same in hydrocarbon recovery |
| US7115547B2 (en) * | 2003-09-30 | 2006-10-03 | Wolfco Group, Inc. | Additive for enhanced treatment of oil well contaminants |
| CN100400618C (en) * | 2006-05-24 | 2008-07-09 | 西南石油大学 | Hydrophobic and lipophilic treatment agent for formation near wellbore zone and preparation method thereof |
| CN100355838C (en) * | 2006-05-24 | 2007-12-19 | 西南石油大学 | Hydrophobic oleophilic self-cementing sand and its preparation method |
| AU2008331603B2 (en) * | 2007-11-30 | 2012-03-15 | M-I Llc | Breaker fluids and methods of using the same |
| US8950481B2 (en) | 2007-11-30 | 2015-02-10 | M-I Llc | Methods of cleaning wellbores and analyzing wellbore fluids |
| CN101693829B (en) * | 2009-10-28 | 2012-09-05 | 中联煤层气国家工程研究中心有限责任公司 | Pulverized coal dispersing agent and active water fracturing fluid for fracturing of coal bed gas well |
| RU2443677C1 (en) * | 2010-10-28 | 2012-02-27 | Учреждение Российской академии наук Институт органической и физической химии им. А.Е. Арбузова Казанского научного центра РАН | Poly[nonylphenoxypoly(ethyleneoxy)carbonylmethylammonium] polychlorides, having epoxy polymer hydrophilising modifier properties |
| US8763705B2 (en) * | 2011-03-25 | 2014-07-01 | Schlumberger Technology Corporation | Compositions and methods for cleaning a wellbore prior to cementing |
| CN103573231B (en) * | 2012-07-23 | 2017-09-08 | 中国石油化工股份有限公司 | The method for improving recovery ratio of sensitive heavy oil reservoir |
| CA2889606C (en) * | 2013-01-14 | 2019-01-22 | Basf Se | Method of fracturing subterranean formations |
| CN104650841B (en) * | 2013-11-22 | 2018-10-16 | 中国石油天然气股份有限公司 | Anion and cation compound surfactant oil displacement agent |
| CN105368428B (en) * | 2014-08-27 | 2019-12-10 | 中国石油化工股份有限公司 | Anionic-nonionic mixed oil-displacing surfactant and preparation method and application thereof |
| US10537829B2 (en) | 2015-10-20 | 2020-01-21 | M-I L.L.C. | Emulsion preventer for completion brines |
| US10214435B2 (en) | 2015-10-20 | 2019-02-26 | M-I L.L.C. | Non-emulsifier for completion brines to prevent emulsion from forming |
| CN106590595B (en) * | 2015-10-20 | 2020-02-07 | 中国石油化工股份有限公司 | Oil displacement composition suitable for low-calcium magnesium oil reservoir and preparation method thereof |
| CA3042502C (en) | 2016-12-13 | 2021-11-23 | Halliburton Energy Services, Inc. | Surfactant flowback aids for use in subterranean formation operations |
| CN109989727A (en) * | 2017-12-29 | 2019-07-09 | 新疆中核天山铀业有限公司 | A kind of ground-dipping uranium extraction drilling de-plugging anatonosis technique |
| IT201800007438A1 (en) * | 2018-07-23 | 2020-01-23 | LOW ECOTOXICOLOGICAL IMPACT FOAMING ADDITIVE FOR THE CONDITIONING OF THE SOIL IN THE PRESENCE OF MECHANIZED EXCAVATION | |
| CN111088016B (en) * | 2018-10-23 | 2022-04-05 | 中国石油化工股份有限公司 | Non-alkylphenol surfactant yin-yang compound composition for chemical flooding and preparation method and application thereof |
| CN109880607A (en) * | 2019-03-25 | 2019-06-14 | 大庆华理生物技术有限公司 | A kind of binary displacement oil agent and its application |
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| US3323593A (en) * | 1964-03-16 | 1967-06-06 | Dow Chemical Co | Method of treating an oil-bearing formation |
| US4120356A (en) * | 1976-09-30 | 1978-10-17 | Phillips Petroleum Company | Well-cleaning process using viscosified surfactant solutions |
| US4669544A (en) * | 1986-04-17 | 1987-06-02 | Dowell Schlumberger Incorporated | Reducing paraffin deposits on paraffin contaminated surfaces |
| US5830831A (en) * | 1995-05-11 | 1998-11-03 | Atlantic Richfield Company | Surfactant blends for well operations |
| US5977032A (en) * | 1998-09-26 | 1999-11-02 | Atlantic Richfield Company | Acidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant composition |
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2000
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- 2000-09-15 BR BRPI0014244-1A patent/BR0014244B1/en not_active IP Right Cessation
- 2000-09-15 WO PCT/US2000/025483 patent/WO2001023703A1/en active IP Right Grant
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- 2000-09-15 CN CNB00813085XA patent/CN1266369C/en not_active Expired - Lifetime
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Cited By (1)
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|---|---|---|---|---|
| CN110249022A (en) * | 2017-02-03 | 2019-09-17 | 沙特阿拉伯石油公司 | Drilling fluid composition and its application method with enhancing rheological characteristic |
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| AU773820C (en) | 2005-02-17 |
| NO20021414L (en) | 2002-05-21 |
| BR0014244B1 (en) | 2012-09-04 |
| MXPA02003135A (en) | 2002-09-30 |
| NO20021414D0 (en) | 2002-03-21 |
| NO322161B1 (en) | 2006-08-21 |
| CN1433499A (en) | 2003-07-30 |
| WO2001023703A1 (en) | 2001-04-05 |
| RU2249682C2 (en) | 2005-04-10 |
| AR025758A1 (en) | 2002-12-11 |
| AU7495500A (en) | 2001-04-30 |
| AU773820B2 (en) | 2004-06-10 |
| BR0014244A (en) | 2002-08-27 |
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