RU2011132231A - METHOD FOR DEVELOPING A CRACKED OIL DEPOSIT OF HIGH-VISCOUS OIL - Google Patents
METHOD FOR DEVELOPING A CRACKED OIL DEPOSIT OF HIGH-VISCOUS OIL Download PDFInfo
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- RU2011132231A RU2011132231A RU2011132231/03A RU2011132231A RU2011132231A RU 2011132231 A RU2011132231 A RU 2011132231A RU 2011132231/03 A RU2011132231/03 A RU 2011132231/03A RU 2011132231 A RU2011132231 A RU 2011132231A RU 2011132231 A RU2011132231 A RU 2011132231A
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- oil
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- wells
- horizontal
- production wells
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Способ разработки трещиноватой нефтяной залежи высоковязкой нефти, включающий бурение вертикальных нагнетательных и разветвленных горизонтальных добывающих скважин с горизонтальными стволами, закачку вытесняющей жидкости через вертикальные нагнетательные скважины и отбор продукции через разветвленные горизонтальные добывающие скважины, отличающийся тем, что вертикальные нагнетательные скважины бурят в приконтурной зоне залежи, а разветвления из горизонтальных стволов добывающих скважин пробуривают в нефтеносной зоне залежи со ступенчатым профилем, причем количество разветвлений соответствует количеству пропластков, отличающихся между собой проницаемостями в 1,5 и более раза, а длину каждого разветвления определяют расчетным путем в зависимости от проницаемости пласта и длины основного горизонтального ствола, при этом разработку залежи ведут при пластовом давлении выше давления насыщения нефти газом и ниже давления раскрытия трещин в залежи закачкой в нагнетательные скважины вытесняющего агента, в качестве которого используют газ, причем в призабойные зоны добывающих скважин периодически подвергают обработке паром, тогда когда температура добываемой продукции снизится до температуры, ниже которой вязкость нефти начинает резко расти.A method for developing a fractured oil reservoir of highly viscous oil, including drilling vertical injection and branched horizontal production wells with horizontal shafts, injecting displacement fluid through vertical injection wells and selecting products through branched horizontal production wells, characterized in that the vertical injection wells are drilled in the near-edge zone and branches from horizontal trunks of production wells are drilled in the oil-bearing zone of the reservoir with a stepped profile, and the number of branches corresponds to the number of interlayers differing in permeability of 1.5 or more times, and the length of each branch is determined by calculation, depending on the permeability of the formation and the length of the main horizontal wellbore, while the development of deposits is carried out at a reservoir pressure above pressure saturation of oil with gas and below the crack opening pressure in the reservoir by injection into the injection wells of a displacing agent, which is used as gas, and in bottom-hole zones Production wells are periodically steamed, when the temperature of the produced product drops to a temperature below which the viscosity of the oil begins to rise sharply.
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Application Number | Priority Date | Filing Date | Title |
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RU2011132231/03A RU2483207C2 (en) | 2011-07-29 | 2011-07-29 | Development method of fractured high-viscosity oil deposit |
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RU2011132231/03A RU2483207C2 (en) | 2011-07-29 | 2011-07-29 | Development method of fractured high-viscosity oil deposit |
Publications (2)
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RU2011132231A true RU2011132231A (en) | 2013-02-10 |
RU2483207C2 RU2483207C2 (en) | 2013-05-27 |
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RU2011132231/03A RU2483207C2 (en) | 2011-07-29 | 2011-07-29 | Development method of fractured high-viscosity oil deposit |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2626492C1 (en) * | 2016-04-26 | 2017-07-28 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Mining method for multi-layered inhomogeneous oil reservoir |
RU2630321C1 (en) * | 2016-08-23 | 2017-09-07 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method for development of oil deposits in layer reservoirs with branched horizontal well |
RU2726664C1 (en) * | 2019-11-14 | 2020-07-15 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of development of oil multilayer deposit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5148869A (en) * | 1991-01-31 | 1992-09-22 | Mobil Oil Corporation | Single horizontal wellbore process/apparatus for the in-situ extraction of viscous oil by gravity action using steam plus solvent vapor |
RU2145664C1 (en) * | 1998-03-24 | 2000-02-20 | Рузин Леонид Михайлович | Method of developing fractured oil formation |
RU2213857C2 (en) * | 2001-09-24 | 2003-10-10 | ООО "ЛУКОЙЛ-Коми" | Method of oil deposit development |
RU2321734C1 (en) * | 2006-10-30 | 2008-04-10 | ООО "ЛУКОЙЛ-Коми" | Method for fractured highly-viscous oil reservoir development |
RU2387815C1 (en) * | 2009-04-21 | 2010-04-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method to develop oil accumulation in laminar carbonate reservoirs |
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RU2483207C2 (en) | 2013-05-27 |
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Effective date: 20180730 |