Method for treating a formation with a solvent
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/62
C09K-008/86
출원번호
US-0532684
(2007-12-30)
등록번호
US-9353309
(2016-05-31)
국제출원번호
PCT/US2007/089184
(2007-12-30)
§371/§102 date
20100301
(20100301)
국제공개번호
WO2008/118243
(2008-10-02)
발명자
/ 주소
Pope, Gary A.
Baran, Jr., Jimmie R.
Skildum, John D.
Bang, Vishal
Shama, Mukul M.
출원인 / 주소
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
대리인 / 주소
Flores, Edwin S.
인용정보
피인용 횟수 :
1인용 특허 :
82
초록▼
The present invention includes compositions and methods for treating a hydrocarbon-bearing formation by contacting the hydrocarbon-bearing formation with a fluid that includes at least one of a polyol or polyol ether, wherein the polyol and polyol ether independently have from 2 to 25 carbon atoms;
The present invention includes compositions and methods for treating a hydrocarbon-bearing formation by contacting the hydrocarbon-bearing formation with a fluid that includes at least one of a polyol or polyol ether, wherein the polyol and polyol ether independently have from 2 to 25 carbon atoms; and at least one of a monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, and ketone independently have from 1 to 4 carbon atoms, and wherein the at least one of a polyol or polyol ether is present in the fluid at at least 50 weight percent, based on the total weight of the fluid.
대표청구항▼
1. A method of treating a hydrocarbon-bearing formation having at least one first gas permeability, the method comprising: injecting a fluid into the hydrocarbon-bearing formation, wherein the fluid comprises at least one material from at least two of Group I, Group II, or Group III, wherein: Group
1. A method of treating a hydrocarbon-bearing formation having at least one first gas permeability, the method comprising: injecting a fluid into the hydrocarbon-bearing formation, wherein the fluid comprises at least one material from at least two of Group I, Group II, or Group III, wherein: Group I is a polyol or polyol ether, wherein the polyol has from 2 to 25 carbon atoms, and wherein the polyol ether has from 3 to 8 carbon atoms;Group II is a monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, and ketone independently have from 1 to 4 carbon atoms; andGroup III is toluene, diesel, heptane, octane, or condensate,wherein the fluid at least one of solubilizes or displaces at least one of brine or condensate in the hydrocarbon-bearing formation, wherein the fluid is free of nonionic polymeric surfactant comprising perfluoroalkylsulfonamido groups, wherein any surfactant that may be present in the fluid is below its critical micelle concentration, wherein the hydrocarbon-bearing formation has at least one second gas permeability after injecting the fluid into the formation, and wherein the second gas permeability is at least 5 percent higher than the first gas permeability. 2. The method of claim 1, wherein the first gas permeability and the second gas permeability are gas relative permeabilities. 3. The method of claim 1, wherein the fluid comprises at least one of the polyol or polyol ether. 4. The method of claim 1, wherein the polyol or polyol ether is at least one of 2-butoxyethanol, ethylene glycol, propylene glycol, polypropylene glycol), 1,3-propanediol, 1,8-octanediol, diethylene glycol monomethyl ether, or dipropylene glycol monomethyl ether. 5. The method of claim 1, wherein the fluid comprises at least one monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, or ketone independently have from 1 to 4 carbon atoms. 6. The method of claim 1, wherein the fluid comprises at least one of ethanol or isopropanol. 7. The method of claim 1, wherein the fluid at least partially solubilizes brine in the hydrocarbon-bearing formation. 8. The method of claim 1, wherein the second gas permeability is at least 10 percent higher than the first gas permeability. 9. The method of claim 1, further comprising obtaining hydrocarbons from a well bore penetrating the hydrocarbon-bearing formation after injecting the fluid. 10. The method of claim 1, wherein the fluid is free of organosilicon compounds. 11. A method of treating a hydrocarbon-bearing formation, the method comprising contacting the hydrocarbon-bearing formation with a fluid, wherein the fluid comprises: at least one of a polyol or polyol ether, wherein the polyol has from 2 to 25 carbon atoms, and wherein the polyol ether has from 3 to 8 carbon atoms; andat least one of a monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, and ketone independently have from 1 to 4 carbon atoms, wherein the fluid is free of nonionic polymeric surfactant comprising perfluoroalkylsulfonamido groups, wherein the at least one of a polyol or polyol ether is present in the fluid at at least 50 weight percent, based on the total weight of the fluid, wherein the hydrocarbon-bearing formation has at least one first gas permeability prior to contacting the hydrocarbon-bearing formation with the fluid and at least one second gas permeability after contacting the hydrocarbon-bearing formation with the fluid, and wherein the second gas permeability is at least 5 percent higher than the first gas permeability. 12. The method of claim 11, wherein the first gas permeability and the second gas permeability are gas relative permeabilities. 13. The method of claim 11, wherein the fluid further comprises at least one of toluene, diesel, heptane, octane, or condensate. 14. The method of claim 11, wherein the polyol or polyol ether is at least one of 2-butoxyethanol, ethylene glycol, propylene glycol, polypropylene glycol), 1,3-propanediol, 1,8-octanediol, diethylene glycol monomethyl ether, or dipropylene glycol monomethyl ether. 15. The method of claim 11, wherein the hydrocarbon-bearing formation has at least one fracture, wherein the fracture has a plurality of proppants therein, the method further comprising contacting the fracture with the fluid. 16. The method of claim 11, wherein the fluid is free of organosilicon compounds. 17. The method of claim 11, wherein the hydrocarbon-bearing formation has brine and at least one temperature, the brine having at least one composition, the method further comprising: obtaining compatibility information for at least one model brine and at least one model fluid at at least one model temperature, wherein each model brine independently has a composition selected at least partially based on the formation brine composition, wherein each model temperature is independently selected at least partially based on the formation temperature, and wherein each model fluid independently comprises: at least one of a polyol or polyol ether, wherein the polyol has from 2 to 25 carbon atoms, and wherein the polyol ether has from 3 to 8; andat least one of a monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, and ketone independently have from 1 to 4 carbon atoms; andselecting a treatment fluid for treating the hydrocarbon-bearing subterranean formation based at least partially on the compatibility information, wherein the treatment fluid is free of nonionic polymeric surfactant comprising perfluoroalkylsulfonamido groups, and wherein any surfactant that may be present in the fluid is below its critical micelle concentration. 18. The method of claim 17, wherein the first gas permeability and the second gas permeability are gas relative permeabilities. 19. The method of claim 17, wherein the treatment fluid has the same composition as the at least one model fluid.
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