[특허]Flooding operations employing chlorine dioxide

Flooding operations employing chlorine dioxide 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/20 E21B-043/22 E21B-043/40 E21B-043/25 C09K-008/66 C09K-008/60 C09K-008/68 C09K-008/58
출원번호	US-0318438 (2014-06-27)
등록번호	US-8997862 (2015-04-07)
발명자 / 주소	Mason, John
출원인 / 주소	Sabre Intellectual Property Holdings LLC
대리인 / 주소	Pillsbury Winthrop Shaw Pittman LLP
인용정보	피인용 횟수 : 0 인용 특허 : 28

초록 ▼

A method includes introducing a treatment fluid including a first polymer gel into a subterranean formation to generate a production fluid having an aqueous portion and a hydrocarbon portion, treating the aqueous portion of the production fluid with chlorine dioxide to separate additional hydrocarbons from the aqueous portion, and adjusting the viscosity of the treated aqueous portion prior to introducing the treated aqueous portion back into the subterranean formation.

대표청구항 ▼

1. A method comprising: introducing a polymer gel-containing treatment fluid into a subterranean formation under conditions of a polymer flooding operation, the polymer gel-containing treatment fluid comprising: a water-soluble polymer;an amount of chlorine dioxide sufficient to increase the viscosity of the treatment fluid; andan aqueous base fluid. 2. The method of claim 1, further comprising generating a production fluid comprising an aqueous portion and a hydrocarbon portion. 3. The method of claim 2, further comprising treating the production fluid with chlorine dioxide thereby separating of an aqueous portion and a hydrocarbon portion, wherein after the treating step, at least 5 ppm residual chlorine dioxide remains. 4. The method of claim 3, further comprising adding a second water-soluble polymer to the aqueous portion to form a recycled flooding fluid. 5. The method of claim 4, further comprising introducing the recycled flooding fluid into the subterranean formation under conditions of a polymer flooding operation. 6. The method of claim 1, wherein the amount of chlorine dioxide is at least about 5 ppm residual chlorine dioxide. 7. The method of claim 1, wherein the amount of chlorine dioxide comprises at least about 6 ppm residual chlorine dioxide. 8. The method of claim 1, wherein the amount of chlorine dioxide is in a range from about 5 ppm to about 20 ppm residual chlorine dioxide. 9. The method of claim 1, wherein an upper limit of the amount chlorine dioxide is an amount less than would substantially break the polymer gel, as determined by viscosity measurement. 10. The method of claim 1, wherein the amount of chlorine dioxide is substantially greater than needed for biocidal activity. 11. A method comprising: introducing a treatment fluid into a subterranean formation under conditions of a polymer flooding operation, the treatment fluid comprising: a polymer gel comprising a water-soluble polymer; andan amount of chlorine dioxide substantially greater than needed for biocidal activity and also allowing an amount of water-soluble polymer to be used to form the polymer gel to be reduced by about 25% to about 75%, relative to a treatment fluid lacking chlorine dioxide; andan aqueous base fluid. 12. The method of claim 11, further comprising generating a production fluid comprising an aqueous portion and a hydrocarbon portion. 13. The method of claim 12, further comprising treating the production fluid with chlorine dioxide thereby separating of an aqueous portion and a hydrocarbon portion, wherein after the treating step, at least 5 ppm residual chlorine dioxide remains. 14. The method of claim 13, further comprising adding a second water-soluble polymer to the aqueous portion to form a recycled flooding fluid. 15. The method of claim 14, further comprising introducing the recycled flooding fluid into the subterranean formation under conditions of a polymer flooding operation. 16. The method of claim 11, wherein the amount of chlorine dioxide comprises at least about 5 ppm residual chlorine dioxide. 17. The method of claim 11, wherein the amount of chlorine dioxide comprises at least about 6 ppm residual chlorine dioxide. 18. The method of claim 11, wherein the amount of chlorine dioxides comprises from about 5 ppm to about 20 ppm residual chlorine dioxide. 19. The method of claim 11, wherein an upper limit of the amount of chlorine dioxide is an amount less than substantially breaks the polymer gel, as determined by measurement of viscosity.

이 특허에 인용된 특허 (28)

Riese Walter C. ; Bross Stephen V., Chemically induced stimulation of cleat formation in a subterranean coal formation.
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Riese Walter C. ; Bross Stephen V., Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions.
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Bates, Christopher Ian; Collins, Ian Ralph; Ravenscroft, Paul Derek, Coated products and use thereof in oil fields.
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Christopher Ian Bates BE; Ian Ralph Collins GB; Paul Derek Ravenscroft GB, Coated products and use thereof in oil fields.
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Perry, Stephen C.; Williams, Michael E., Composition for denaturing and breaking down friction-reducing polymer and for destroying other oil well contaminants.
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Mason, John, Flooding operations employing chlorine dioxide.
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Moradi-Araghi Ahmad (Bartlesville OK), Gelling compositions useful for oil field applications.
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Williams Dennis A. (Houston TX) Newlove John C. (Kingwood TX) Horton Roger L. (Kingwood TX), Hydraulic fracturing with chlorine dioxide cleanup.
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Key Morris D. (Dallas TX) Crawford ; Jr. William H. (Fort Worth TX), Inhibited oil field drilling fluid.
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Hao,Zhanyuan; Hao,Dong, Method for preparing a chlorine dioxide block-removing agent in oil wells.
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Cox, Jr., Henry Wilmore, Method for reducing H2S contamination.
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Oakes ; deceased David T. (late of Norman OK by Evalyn B. Oakes ; administrator), Method for reducing hydrogen sulfide concentrations in well fluids.
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Simpson, Greg D., Method for removing iron deposits in a water system.
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McGlathery Mark S. (Huntington Beach CA), Method for removing polymer plugging in well boreholes.
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McDougall Lee A. (Houston TX) Williams Dennis A. (Houston TX), Method of improving formation permeability using chlorine dioxide.
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Brost Dale F. (Sugar Land TX), Method of restoring permeability around wellbores.
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Nguyen Duy, Methods of preventing scaling involving inorganic compositions in combination with copolymers of maleic anhydride and isobutylene, and compositions therefor.
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Angelilli, Jerome F.; Guccione, Patrick D.; Pierce, Billy E.; Wong, Daniel Wai-tak; Williams, John H., Portable water treatment method.
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Sacco Frank J. (Mission Viejo CA), Process and apparatus for introducing aqueous chloride dioxide into high pressure water injection wells.
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Gene H. Zaid ; Donald W. Sanders, Process for in situ generation of chlorine dioxide in oil and gas well formations.
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Dunleavy Michael F. (Cody WY) Franklin Andrew A. (Powell WY) Wood Daniel D. (Cody WY), Process for restoring the permeability of a subterranean formation.
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Collins,Ian Ralph; Jones,Trevor; Osborne,Christopher George, Process for treating a formation.
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Rhudy John S. (Littleton CO) Gibb Connie L. (Evergreen CO), Recovery of petroleum with chemically treated high molecular weight polymers.
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Robb, Ian D.; Bryant, Jason E.; Rickman, Richard D., Surfactants and friction reducing polymers for the reduction of water blocks and gas condensates and associated methods.
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Bryant, Jason E.; McMechan, David E.; McCabe, Michael A.; Wilson, J. Michael; King, Karen L., Treatment fluids having biocide and friction reducing properties and associated methods.
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Hudson Alice P. ; Peggs Sasha J., Use of bioaugmentation and a controlled release nitrate source to reduce hydrogen sulfide concentrations in wastewater systems.
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Mason James A. (P.O. Box 605 Theodore AL 36582), Use of chlorous acid in oil recovery.
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Inagaki, Yasuhito; Watanabe, Haruo; Kiuchi, Shigeo; Kano, Takaaki, Waste water treatment material, waste water treatment method, sludge dehydrating agent and sludge treatment method.
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