CA2015460A1 - Process for confining steam injected into a heavy oil reservoir - Google Patents
Process for confining steam injected into a heavy oil reservoirInfo
- Publication number
- CA2015460A1 CA2015460A1 CA 2015460 CA2015460A CA2015460A1 CA 2015460 A1 CA2015460 A1 CA 2015460A1 CA 2015460 CA2015460 CA 2015460 CA 2015460 A CA2015460 A CA 2015460A CA 2015460 A1 CA2015460 A1 CA 2015460A1
- Authority
- CA
- Canada
- Prior art keywords
- reservoir
- depleted
- heavy oil
- steam
- pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
Abstract
"PROCESS FOR CONFINING STEAM INJECTED INTO
A HEAVY OIL RESERVOIR"
ABSTRACT OF THE DISCLOSURE
The process is practised in the context of a first pattern of wells completed in a first portion of a heavy oil reservoir. The first pattern has undergone steaming and production and the underlying reservoir portion is significantly depleted. A second pattern of wells is completed in a second less-depleted portion of the reservoir. The two reservoir portions are adjacent and in fluid communication. This may be through a laterally extending thief zone high in the reservoir, the thief zone having higher permeability to steam than the main body of the reservoir. Steam injected into the second portion thus will be lost into the depleted portion. The process comprises injecting non-condensable gas into the depleted portion while steaming and producing oil from the less-depleted second portion. The gas is injected at a rate sufficient to maintain the pressure in the two reservoir portions about equal. As a result, the loss of steam to the depleted portion is inhibited.
A HEAVY OIL RESERVOIR"
ABSTRACT OF THE DISCLOSURE
The process is practised in the context of a first pattern of wells completed in a first portion of a heavy oil reservoir. The first pattern has undergone steaming and production and the underlying reservoir portion is significantly depleted. A second pattern of wells is completed in a second less-depleted portion of the reservoir. The two reservoir portions are adjacent and in fluid communication. This may be through a laterally extending thief zone high in the reservoir, the thief zone having higher permeability to steam than the main body of the reservoir. Steam injected into the second portion thus will be lost into the depleted portion. The process comprises injecting non-condensable gas into the depleted portion while steaming and producing oil from the less-depleted second portion. The gas is injected at a rate sufficient to maintain the pressure in the two reservoir portions about equal. As a result, the loss of steam to the depleted portion is inhibited.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2015460 CA2015460C (en) | 1990-04-26 | 1990-04-26 | Process for confining steam injected into a heavy oil reservoir |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2015460 CA2015460C (en) | 1990-04-26 | 1990-04-26 | Process for confining steam injected into a heavy oil reservoir |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2015460A1 true CA2015460A1 (en) | 1991-10-26 |
CA2015460C CA2015460C (en) | 1993-12-14 |
Family
ID=4144839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2015460 Expired - Lifetime CA2015460C (en) | 1990-04-26 | 1990-04-26 | Process for confining steam injected into a heavy oil reservoir |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2015460C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001081722A1 (en) * | 2000-04-24 | 2001-11-01 | Shell Internationale Research Maatschappij B.V. | A method for treating a hydrocarbon-containing formation |
US7090014B2 (en) | 1999-10-26 | 2006-08-15 | Alberta Science And Research Authority | Process for sequentially applying SAGD to adjacent sections of a petroleum reservoir |
US7527096B2 (en) | 2005-01-26 | 2009-05-05 | Nexen Inc. | Methods of improving heavy oil production |
US8387691B2 (en) | 2008-10-17 | 2013-03-05 | Athabasca Oils Sands Corporation | Low pressure recovery process for acceleration of in-situ bitumen recovery |
US8424602B2 (en) | 2009-02-06 | 2013-04-23 | Thimm Petroleum Technologies Inc. | Gas-assisted process for in-situ bitumen recovery from carbonate reservoirs |
US8770289B2 (en) | 2011-12-16 | 2014-07-08 | Exxonmobil Upstream Research Company | Method and system for lifting fluids from a reservoir |
CN111434885A (en) * | 2019-01-15 | 2020-07-21 | 中国石油天然气股份有限公司 | Thickened oil recovery method |
US11326431B2 (en) | 2019-02-01 | 2022-05-10 | Cenovus Energy Inc. | Dense aqueous gravity displacement of heavy oil |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2251157C (en) * | 1998-10-26 | 2003-05-27 | William Keith Good | Process for sequentially applying sagd to adjacent sections of a petroleum reservoir |
US6715548B2 (en) | 2000-04-24 | 2004-04-06 | Shell Oil Company | In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids |
US6698515B2 (en) | 2000-04-24 | 2004-03-02 | Shell Oil Company | In situ thermal processing of a coal formation using a relatively slow heating rate |
US6588504B2 (en) | 2000-04-24 | 2003-07-08 | Shell Oil Company | In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids |
US6715546B2 (en) | 2000-04-24 | 2004-04-06 | Shell Oil Company | In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore |
US6918443B2 (en) | 2001-04-24 | 2005-07-19 | Shell Oil Company | In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range |
US20030079877A1 (en) | 2001-04-24 | 2003-05-01 | Wellington Scott Lee | In situ thermal processing of a relatively impermeable formation in a reducing environment |
US6932155B2 (en) | 2001-10-24 | 2005-08-23 | Shell Oil Company | In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
WO2004038173A1 (en) | 2002-10-24 | 2004-05-06 | Shell Internationale Research Maatschappij B.V. | Temperature limited heaters for heating subsurface formations or wellbores |
CA2524689C (en) | 2003-04-24 | 2012-05-22 | Shell Canada Limited | Thermal processes for subsurface formations |
AU2005238941B2 (en) | 2004-04-23 | 2008-11-13 | Shell Internationale Research Maatschappij B.V. | Temperature limited heaters used to heat subsurface formations |
US7546873B2 (en) | 2005-04-22 | 2009-06-16 | Shell Oil Company | Low temperature barriers for use with in situ processes |
EA012554B1 (en) | 2005-04-22 | 2009-10-30 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | A heating system for a subsurface formation with a heater coupled in a three-phase wye configuration |
KR101359313B1 (en) | 2005-10-24 | 2014-02-10 | 쉘 인터내셔날 리써취 마트샤피지 비.브이. | Methods of producing alkylated hydrocarbons from a liquid produced from an in situ heat treatment |
US7793722B2 (en) | 2006-04-21 | 2010-09-14 | Shell Oil Company | Non-ferromagnetic overburden casing |
WO2008051837A2 (en) | 2006-10-20 | 2008-05-02 | Shell Oil Company | In situ heat treatment process utilizing oxidizers to heat a subsurface formation |
AU2008242810B2 (en) | 2007-04-20 | 2012-02-02 | Shell Internationale Research Maatschappij B.V. | Controlling and assessing pressure conditions during treatment of tar sands formations |
WO2009052041A1 (en) | 2007-10-19 | 2009-04-23 | Shell Oil Company | Variable voltage load tap changing transformer |
CA2718767C (en) | 2008-04-18 | 2016-09-06 | Shell Internationale Research Maatschappij B.V. | Using mines and tunnels for treating subsurface hydrocarbon containing formations |
JP5611962B2 (en) | 2008-10-13 | 2014-10-22 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Circulating heat transfer fluid system used to treat ground surface underlayer |
US8434555B2 (en) | 2009-04-10 | 2013-05-07 | Shell Oil Company | Irregular pattern treatment of a subsurface formation |
US8631866B2 (en) | 2010-04-09 | 2014-01-21 | Shell Oil Company | Leak detection in circulated fluid systems for heating subsurface formations |
US9127538B2 (en) | 2010-04-09 | 2015-09-08 | Shell Oil Company | Methodologies for treatment of hydrocarbon formations using staged pyrolyzation |
US8875788B2 (en) | 2010-04-09 | 2014-11-04 | Shell Oil Company | Low temperature inductive heating of subsurface formations |
US9033042B2 (en) | 2010-04-09 | 2015-05-19 | Shell Oil Company | Forming bitumen barriers in subsurface hydrocarbon formations |
US9016370B2 (en) | 2011-04-08 | 2015-04-28 | Shell Oil Company | Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment |
US9309755B2 (en) | 2011-10-07 | 2016-04-12 | Shell Oil Company | Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations |
-
1990
- 1990-04-26 CA CA 2015460 patent/CA2015460C/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7090014B2 (en) | 1999-10-26 | 2006-08-15 | Alberta Science And Research Authority | Process for sequentially applying SAGD to adjacent sections of a petroleum reservoir |
WO2001081722A1 (en) * | 2000-04-24 | 2001-11-01 | Shell Internationale Research Maatschappij B.V. | A method for treating a hydrocarbon-containing formation |
US6959761B2 (en) * | 2000-04-24 | 2005-11-01 | Shell Oil Company | In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells |
US7527096B2 (en) | 2005-01-26 | 2009-05-05 | Nexen Inc. | Methods of improving heavy oil production |
US7717175B2 (en) | 2005-01-26 | 2010-05-18 | Nexen Inc. | Methods of improving heavy oil production |
US8387691B2 (en) | 2008-10-17 | 2013-03-05 | Athabasca Oils Sands Corporation | Low pressure recovery process for acceleration of in-situ bitumen recovery |
US8424602B2 (en) | 2009-02-06 | 2013-04-23 | Thimm Petroleum Technologies Inc. | Gas-assisted process for in-situ bitumen recovery from carbonate reservoirs |
US8770289B2 (en) | 2011-12-16 | 2014-07-08 | Exxonmobil Upstream Research Company | Method and system for lifting fluids from a reservoir |
CN111434885A (en) * | 2019-01-15 | 2020-07-21 | 中国石油天然气股份有限公司 | Thickened oil recovery method |
US11326431B2 (en) | 2019-02-01 | 2022-05-10 | Cenovus Energy Inc. | Dense aqueous gravity displacement of heavy oil |
Also Published As
Publication number | Publication date |
---|---|
CA2015460C (en) | 1993-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |