RU2013124942A - METHOD FOR INCREASING OIL TRANSFER OF LAYERS BY SUPPLYING A GAS-MIXTURE - Google Patents
METHOD FOR INCREASING OIL TRANSFER OF LAYERS BY SUPPLYING A GAS-MIXTURE Download PDFInfo
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- RU2013124942A RU2013124942A RU2013124942/03A RU2013124942A RU2013124942A RU 2013124942 A RU2013124942 A RU 2013124942A RU 2013124942/03 A RU2013124942/03 A RU 2013124942/03A RU 2013124942 A RU2013124942 A RU 2013124942A RU 2013124942 A RU2013124942 A RU 2013124942A
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Abstract
Способ увеличения нефтеотдачи пластов путем нагнетания водогазовой смеси в пласт, включающий приготовление водогазовой смеси в диапазоне значений газосодержания, обеспечивающем устойчивую работу насосной установки, нагнетание ее в одну или более скважину с помощью установки с центробежным насосом и вытеснение нефти из продуктивного пласта, отличающийся тем, что перед нагнетанием водогазовой смеси в пласт определяют зависимость коэффициента вытеснения нефти от газосодержания в водогазовой смеси при пластовых условиях, на основе полученной зависимости выбирают оптимальное значение газосодержания, определяют зависимость изменения приемистости скважины от газосодержания, устанавливают рабочее соотношение расходов воды и газа на входе в смеситель, далее, по мере продвижения фронта вытеснения, рассчитывают текущее значение газосодержания на фронте вытеснения в зависимости от давления, после чего уменьшают содержание газа в водогазовой смеси (ВГС) поддерживая его на оптимальном уровне.A method of increasing oil recovery by injecting a water-gas mixture into a formation, including preparing a water-gas mixture in a gas content range that ensures stable operation of a pumping unit, injecting it into one or more wells using a centrifugal pump, and displacing oil from the reservoir, characterized in that before injection of the water-gas mixture into the reservoir, the dependence of the oil displacement coefficient on the gas content in the gas-gas mixture under reservoir conditions, based on the floor of the scientific dependence, the optimal value of gas content is selected, the dependence of the well injectivity change on gas content is determined, the working ratio of water and gas flow rates at the inlet to the mixer is established, then, as the displacement front advances, the current gas content value at the displacement front is calculated depending on pressure, and then reduced the gas content in the water-gas mixture (HCV) maintaining it at an optimal level.
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RU2013124942/03A RU2542059C2 (en) | 2013-05-29 | 2013-05-29 | Method of increase of reservoir recovery by injection of water-gas mixture |
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RU2013124942/03A RU2542059C2 (en) | 2013-05-29 | 2013-05-29 | Method of increase of reservoir recovery by injection of water-gas mixture |
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RU2013124942A true RU2013124942A (en) | 2014-12-10 |
RU2542059C2 RU2542059C2 (en) | 2015-02-20 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112989257A (en) * | 2020-12-11 | 2021-06-18 | 中国石油天然气股份有限公司 | Method for measuring gas production rate of marine phase shale oil and gas reservoir |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104747147B (en) * | 2015-03-24 | 2017-05-10 | 中国石油天然气股份有限公司 | Water drive development oil reservoir well pattern injection-production relation determination method |
RU2634754C1 (en) * | 2016-08-16 | 2017-11-07 | Публичное акционерное общество "Акционерная нефтяная Компания "Башнефть" | Method of automatic distribution of total gas flow through pressure wells in water-gas method effect on formation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US3500917A (en) * | 1967-12-29 | 1970-03-17 | Shell Oil Co | Method of recovering crude oil from a subsurface formation |
GB2107041B (en) * | 1981-09-29 | 1985-01-16 | Coal Ind | Device for extracting and burning methane |
RU2266396C2 (en) * | 2003-09-12 | 2005-12-20 | Савицкий Николай Владимирович | Method and device for oil pool development |
RU2269646C2 (en) * | 2004-04-29 | 2006-02-10 | Открытое акционерное общество "Томский научно-исследовательский и проектный институт нефти и газа Восточной нефтяной компании ВНК" ОАО "ТомскНИПИнефть ВНК" | Method for oil displacement from oil reservoir |
RU2299979C2 (en) * | 2004-07-27 | 2007-05-27 | Риф Вакилович Вафин | Oil deposit development method |
RU2357074C1 (en) * | 2007-12-25 | 2009-05-27 | Открытое акционерное общество "Российская инновационная топливно-энергетическая компания" (ОАО "РИТЭК") | Method of raising oil recovery from horizons by means of pumping water-gas mixture into horizon |
RU2389869C1 (en) * | 2008-10-13 | 2010-05-20 | Валерий Петрович Дыбленко | Method of preparing and supplying heterogeneous mixtures to formation, and plant for method's implementation |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112989257A (en) * | 2020-12-11 | 2021-06-18 | 中国石油天然气股份有限公司 | Method for measuring gas production rate of marine phase shale oil and gas reservoir |
CN112989257B (en) * | 2020-12-11 | 2023-09-26 | 中国石油天然气股份有限公司 | Gas production amount measuring method for sea shale oil-gas reservoir |
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RU2542059C2 (en) | 2015-02-20 |
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Effective date: 20200914 |