RU2014115672A - COMPOSITIONS AND METHODS OF HIGH-TEMPERATURE PROCESSING OF UNDERGROUND FORMATIONS - Google Patents

COMPOSITIONS AND METHODS OF HIGH-TEMPERATURE PROCESSING OF UNDERGROUND FORMATIONS Download PDF

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RU2014115672A
RU2014115672A RU2014115672/03A RU2014115672A RU2014115672A RU 2014115672 A RU2014115672 A RU 2014115672A RU 2014115672/03 A RU2014115672/03 A RU 2014115672/03A RU 2014115672 A RU2014115672 A RU 2014115672A RU 2014115672 A RU2014115672 A RU 2014115672A
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Пол С. КАРМЭН
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Бэйкер Хьюз Инкорпорейтед
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    • 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
    • C09K8/62—Compositions for forming crevices or fractures
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    • C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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    • 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
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    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
    • C09K8/703—Foams
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    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/72—Eroding chemicals, e.g. acids
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    • 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
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    • 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
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/24—Bacteria or enzyme containing gel breakers
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    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/26—Gel breakers other than bacteria or enzymes

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Abstract

1. Способ гидроразрыва подземной формации с температурой примерно от 300°F (149°C) до 500°F (260°C), включающий стадию контакта между жидкостью высокотемпературной обработки скважин, содержащей воду; высокомолекулярный сополимер, полученный из акриламида, акриламидметилпропансульфоновой кислоты и винилфосфоната; сшивающий агент; стабилизатор, включающий фенотиазин или сочетание тиосульфата натрия и фенотиазина; и вспениватель, где по меньшей мере часть подземной формации находится при давлениях, достаточных для гидроразрыва подземной формации.2. Способ по п. 1, в котором вспениватель - это вспенивающий газ, представляющий собой азот либо диоксид углерода.3. Способ по п. 1, в котором качество пены в жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 20 до 98 об.%.4. Способ по п. 1, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 4,0 до 6,0.5. Способ по п. 2, в котором вспенивающий газ представляет собой азот.6. Способ по п. 5, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 5,3 до 5,75.7. Способ по п. 2, в котором вспенивающий газ представляет собой диоксид углерода.8. Способ по п. 7, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 4,1 до 4,5.9. Способ по п. 3, в котором вспениватель представляет собой азот или жидкий CO, который присутствует в количестве от 53 об.% до избытка в 96 об.%.10. Способ по п. 3, в котором вспениватель присутствует в количестве, обеспечивающем от 5 до 53 об.% внутреннего газа в активированных жидкостях или более 53 об.% для вспененных жидкостей.11. Способ по1. The method of hydraulic fracturing of an underground formation with a temperature of from about 300 ° F (149 ° C) to 500 ° F (260 ° C), comprising the step of contact between the fluid of the high-temperature treatment of wells containing water; a high molecular weight copolymer derived from acrylamide, acrylamide methyl propanesulfonic acid and vinyl phosphonate; a crosslinking agent; a stabilizer comprising phenothiazine or a combination of sodium thiosulfate and phenothiazine; and a blowing agent, where at least a portion of the underground formation is at pressures sufficient to fracture the underground formation. 2. The method according to claim 1, wherein the blowing agent is a blowing gas, which is nitrogen or carbon dioxide. A method according to claim 1, wherein the quality of the foam in the liquid for high-temperature treatment of wells is in the range of from about 20 to 98 vol.%. The method of claim 1, wherein the pH of the high temperature well treatment fluid is in the range of about 4.0 to about 6.0.5. The method of claim 2, wherein the blowing gas is nitrogen. The method of claim 5, wherein the pH of the fluid for high temperature well treatment is in the range of about 5.3 to 5.75.7. The method of claim 2, wherein the blowing gas is carbon dioxide. The method of claim 7, wherein the pH of the fluid for high temperature well treatment is in the range of about 4.1 to 4.5.9. The method of claim 3, wherein the blowing agent is nitrogen or liquid CO, which is present in an amount of 53 vol.% To an excess of 96 vol.%. The method according to claim 3, wherein the blowing agent is present in an amount providing from 5 to 53 vol.% Internal gas in activated liquids or more than 53 vol.% For foamed liquids. Method according

Claims (20)

1. Способ гидроразрыва подземной формации с температурой примерно от 300°F (149°C) до 500°F (260°C), включающий стадию контакта между жидкостью высокотемпературной обработки скважин, содержащей воду; высокомолекулярный сополимер, полученный из акриламида, акриламидметилпропансульфоновой кислоты и винилфосфоната; сшивающий агент; стабилизатор, включающий фенотиазин или сочетание тиосульфата натрия и фенотиазина; и вспениватель, где по меньшей мере часть подземной формации находится при давлениях, достаточных для гидроразрыва подземной формации.1. The method of hydraulic fracturing of an underground formation with a temperature of from about 300 ° F (149 ° C) to 500 ° F (260 ° C), comprising the step of contact between the liquid high-temperature treatment of wells containing water; a high molecular weight copolymer derived from acrylamide, acrylamide methyl propanesulfonic acid and vinyl phosphonate; a crosslinking agent; a stabilizer comprising phenothiazine or a combination of sodium thiosulfate and phenothiazine; and a blowing agent, where at least a portion of the subterranean formation is at pressures sufficient to fracture the subterranean formation. 2. Способ по п. 1, в котором вспениватель - это вспенивающий газ, представляющий собой азот либо диоксид углерода.2. The method of claim 1, wherein the blowing agent is a blowing gas, which is nitrogen or carbon dioxide. 3. Способ по п. 1, в котором качество пены в жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 20 до 98 об.%.3. The method according to p. 1, in which the quality of the foam in the liquid for high-temperature treatment of wells is in the range from about 20 to 98 vol.%. 4. Способ по п. 1, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 4,0 до 6,0.4. The method according to p. 1, in which the pH of the fluid for high-temperature treatment of wells is in the range from about 4.0 to 6.0. 5. Способ по п. 2, в котором вспенивающий газ представляет собой азот.5. The method of claim 2, wherein the blowing gas is nitrogen. 6. Способ по п. 5, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 5,3 до 5,75.6. The method according to p. 5, in which the pH of the fluid for high-temperature treatment of wells is in the range from about 5.3 to 5.75. 7. Способ по п. 2, в котором вспенивающий газ представляет собой диоксид углерода.7. The method of claim 2, wherein the blowing gas is carbon dioxide. 8. Способ по п. 7, в котором pH жидкости для высокотемпературной обработки скважин находится в диапазоне примерно от 4,1 до 4,5.8. The method according to p. 7, in which the pH of the fluid for high-temperature treatment of wells is in the range from about 4.1 to 4.5. 9. Способ по п. 3, в котором вспениватель представляет собой азот или жидкий CO2, который присутствует в количестве от 53 об.% до избытка в 96 об.%.9. The method of claim 3, wherein the blowing agent is nitrogen or liquid CO 2 , which is present in an amount of 53 vol.% To an excess of 96 vol.%. 10. Способ по п. 3, в котором вспениватель присутствует в количестве, обеспечивающем от 5 до 53 об.% внутреннего газа в активированных жидкостях или более 53 об.% для вспененных жидкостей.10. The method according to p. 3, in which the blowing agent is present in an amount providing from 5 to 53 vol.% Internal gas in activated liquids or more than 53 vol.% For foamed liquids. 11. Способ по п. 1, в котором высокомолекулярный сополимер присутствует в количестве примерно от 10 галлонов на 1000 галлонов загустителя приблизительно до 25 галлонов на 1000 галлонов загустителя.11. The method according to p. 1, in which the high molecular weight copolymer is present in an amount of from about 10 gallons per 1000 gallons of thickener to about 25 gallons per 1000 gallons of thickener. 12. Способ гидроразрыва подземных формаций при температуре примерно от 300°F (149°C) до 500°F (260°C), включающий контакт по меньшей мере части подземной формации со сшитой вспененной или активированной жидкостью для обработки скважин при давлении, достаточном для создания или расширения трещины, где сшитая вспененная или активированная жидкость для обработки скважин содержит воду; высокомолекулярный полимер, получаемый из акриламида, акриламидметилпропансульфоновой кислоты и винилфосфоната; сшивающий агент; стабилизатор, включающий фенотиазин или сочетания тиосульфата натрия и фенотиазина; и вспениватель; и где количество вспенивателя во вспененной или активированной жидкости такое, чтобы обеспечивать от 5 до 53 об.% внутреннего газа в случае активированных жидкостей или примерно от 53 до 96 об.% внутреннего газа в случае вспененных жидкостей.12. A method for fracturing subterranean formations at a temperature of about 300 ° F (149 ° C) to 500 ° F (260 ° C), comprising contacting at least a portion of the subterranean formation with a crosslinked foam or activated fluid to treat wells at a pressure sufficient to creating or expanding a fracture where the crosslinked foamed or activated well treatment fluid contains water; a high molecular weight polymer derived from acrylamide, acrylamide methyl propanesulfonic acid and vinyl phosphonate; a crosslinking agent; a stabilizer comprising phenothiazine or a combination of sodium thiosulfate and phenothiazine; and foaming agent; and where the amount of blowing agent in the foamed or activated liquid is such as to provide from 5 to 53 vol.% internal gas in the case of activated liquids or from about 53 to 96 vol.% internal gas in the case of foamed liquids. 13. Способ по п. 12, в котором вспениватель представляет собой азот или диоксид углерода.13. The method according to p. 12, in which the blowing agent is nitrogen or carbon dioxide. 14. Способ по п. 12, в котором pH вспененной или активированной жидкости для обработки скважин находится в диапазоне примерно от 4,0 до 6,0.14. The method of claim 12, wherein the pH of the foamed or activated well treatment fluid is in the range of about 4.0 to about 6.0. 15. Способ разрыва пласта в подземной формации с температурой примерно от 300°F (149°C) до 500°F (260°C), где способ включает контакт по меньшей мере части подземной формации с вспененной или активированной жидкостью для обработки скважин при давлениях, достаточных для создания или расширения трещин в формации, а вспененная или активированная жидкость для обработки скважин содержит воду, высокомолекулярный сополимер, полученный из акриламида, акриламидметилпропансульфоновой кислоты и винилфосфоната, сшивающего агента, стабилизатора, представляющего собой фенотиазин или сочетание тиосульфата натрия и фенотиазина и pH-буфер для поддержания pH жидкости в диапазоне примерно от 4,0 до 6,0.15. A method of fracturing a subterranean formation with a temperature of from about 300 ° F (149 ° C) to 500 ° F (260 ° C), where the method includes contacting at least a portion of the underground formation with a foamed or activated fluid to treat wells at pressures sufficient to create or expand cracks in the formation, and the foamed or activated well treatment fluid contains water, a high molecular weight copolymer obtained from acrylamide, acrylamide methyl propanesulfonic acid and vinyl phosphonate, a crosslinking agent, a stabilizer, representing phenothiazine or a combination of sodium thiosulfate and phenothiazine and a pH buffer to maintain a pH of the liquid in the range of about 4.0 to about 6.0. 16. Способ по п. 15, в котором для высокомолекулярного сополимера характерно K-значение более, чем приблизительно 375.16. The method according to p. 15, in which the high molecular weight copolymer is characterized by a K-value of more than approximately 375. 17. Способ по п. 15, в котором высокомолекулярный сополимер присутствует в количестве примерно от 10 галлонов на 1000 галлонов жидкости для высокотемпературной обработки скважин приблизительно до 25 галлонов на 1000 галлонов жидкости для высокотемпературной обработки скважин.17. The method according to p. 15, in which the high molecular weight copolymer is present in an amount of from about 10 gallons per 1000 gallons of liquid for high temperature treatment of wells to about 25 gallons per 1000 gallons of liquid for high temperature treatment of wells. 18. Способ по п. 15, в котором высокомолекулярный сополимер также содержит мономер из группы, включающей соль щелочного металла акриламидметилпропансульфоновой кислоты, аммониевую соль акриламидметилпропансульфоновой кислоты, стиролсульфонат, винилсульфонат, N-винилпирролидон, N-винилформамид, N-винилацетамид, N,N-диаллилацетамид, метакриламид, акриламид, N,N-диметилакриламид, метакриламид, соль с двухвалентным катионом кальция, соль с двухвалентным катионом магния и их сочетания.18. The method according to p. 15, in which the high molecular weight copolymer also contains a monomer from the group comprising the alkali metal salt of acrylamide methyl propanesulfonic acid, the ammonium salt of acrylamide methyl propanesulfonic acid, styrene sulfonate, vinyl sulfonate, N-vinyl pyrrolidone, N-vinylacetamide, N-vinylacetamide, N-vinylformamide, diallylacetamide, methacrylamide, acrylamide, N, N-dimethylacrylamide, methacrylamide, a salt with a divalent calcium cation, a salt with a divalent magnesium cation, and combinations thereof. 19. Способ по п. 15, в котором pH-буфер содержит уксусную кислоту, ацетат натрия, муравьиную кислоту или их сочетания и присутствует в количестве приблизительно от 1 галлона на 1000 галлонов загустителя примерно до 3 галлонов на 1000 галлонов загустителя.19. The method of claim 15, wherein the pH buffer contains acetic acid, sodium acetate, formic acid, or combinations thereof, and is present in an amount of from about 1 gallon per 1000 gallons of thickener to about 3 gallons per 1000 gallons of thickener. 20. Способ по п. 15, в котором вспененная или активированная жидкость для обработки приствольной зоны также содержит реагент для деструкции ферментов. 20. The method according to p. 15, in which the foamed or activated liquid for processing the trunk zone also contains a reagent for the destruction of enzymes.
RU2014115672/03A 2011-09-19 2012-06-20 COMPOSITIONS AND METHODS OF HIGH-TEMPERATURE PROCESSING OF UNDERGROUND FORMATIONS RU2014115672A (en)

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US13/236,378 2011-09-19
US13/236,378 US8691734B2 (en) 2008-01-28 2011-09-19 Method of fracturing with phenothiazine stabilizer
PCT/US2012/043308 WO2013043243A1 (en) 2011-09-19 2012-06-20 Compositions and methods of treating high temperature subterranean formations

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