US20130025866A1 - Integrated process utilizing nitrogen and carbon dioxide streams for enhanced oil recovery - Google Patents
Integrated process utilizing nitrogen and carbon dioxide streams for enhanced oil recovery Download PDFInfo
- Publication number
- US20130025866A1 US20130025866A1 US13/190,245 US201113190245A US2013025866A1 US 20130025866 A1 US20130025866 A1 US 20130025866A1 US 201113190245 A US201113190245 A US 201113190245A US 2013025866 A1 US2013025866 A1 US 2013025866A1
- Authority
- US
- United States
- Prior art keywords
- stream
- carbon dioxide
- steam
- oxygen
- oil
- 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.)
- Abandoned
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 77
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 39
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 38
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 21
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 title description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 239000001301 oxygen Substances 0.000 claims abstract description 33
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 33
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000020169 heat generation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 31
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- 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
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
Definitions
- the present disclosure relates to the generation of gases for enhancing the recovery of oil from a reservoir. More particularly, the disclosure relates to the integration of an air separation unit and an oxygen-fired steam generator to produce nitrogen and carbon dioxide streams for use in enhanced oil recovery.
- EOR enhanced oil recovery
- Processes for enhancing the recovery of oil from an oil-producing reservoir may involve the injection of steam or gas into the reservoir.
- the steam or gas improves the flow characteristics of the oil in order to facilitate production.
- the oil to be produced is heavy oil, e.g., having an API gravity of between about 10 and about 20, steam is appropriate for injection.
- steam is not normally appropriate for injection, but rather a gas which is miscible with the oil is used, such as nitrogen or carbon dioxide. Either nitrogen or carbon dioxide may be preferred depending on the reservoir, the type of oil being produced and the availability of the nitrogen or carbon dioxide.
- FIG. 1 is a schematic drawing of an integrated process according to one embodiment in which a nitrogen stream and a carbon dioxide stream are generated for use in enhanced oil recovery.
- a process for enhanced oil recovery process includes feeding air to a cryogenic air separation unit, operating the cryogenic air separation unit to produce an oxygen stream and a nitrogen stream, feeding the oxygen stream, water and a fuel to an oxygen fired steam generator, combusting the fuel in the oxygen fired steam generator to produce steam and a carbon dioxide stream, utilizing the steam for a use other than injection into an oil-producing reservoir, compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream, and injecting the injection gas stream into at least one oil-producing reservoir.
- a system for enhanced oil recovery includes a cryogenic air separation unit having an air inlet, and oxygen outlet and a nitrogen outlet, an oxygen fired steam generator in fluid communication with the oxygen outlet of the cryogenic air separation unit and further having a fuel inlet, exhaust gas outlet and steam outlet, the steam outlet being in fluid communication with equipment selected from the group consisting of a steam turbine, a heater and a boiler, a means for carbon dioxide dehydration and purification, a compressor for compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream, and a means for injecting the injection gas stream into an oil-producing reservoir.
- a process for enhanced oil recovery process in which a cryogenic air separation unit is operated to transform a feed of air to an oxygen stream and a nitrogen stream.
- the oxygen stream, water and a fuel are fed to an oxygen fired steam generator in which the fuel is combusted to produce steam and a carbon dioxide stream.
- the fuel is primarily methane.
- the oxygen stream contains at least 90% oxygen, even at least 95% oxygen and even at least 97% oxygen. Higher purity oxygen will result in a higher purity carbon dioxide stream.
- the steam is utilized for any suitable use other than injection into an oil-producing reservoir.
- the steam is fed back to the air separation unit to drive steam turbines that are directly linked to compressors within the air separation unit.
- the steam is used to generate power, for example, by driving a turbine in a power generation unit.
- the steam is used to drive steam turbines that are directly linked to other rotary equipment, such as pumps and compressors.
- the power generated can be used for any convenient purpose, including motor-driven air separation unit compressors.
- the steam is used to provide process heat via a heat exchanger, with the steam condensing on one side of the heat exchanger and the process fluid heating up on the other side of the heat exchanger.
- Either the carbon dioxide stream produced by combustion in the oxygen fired steam generator or the nitrogen stream produced by air separation in the cryogenic air separation unit can be compressed to form an injection gas stream which is injected into an oil-producing reservoir to enhance oil recovery.
- the injection gas stream is compressed to a pressure between about 1 psi and about 20,000 psi for injection. If either the carbon dioxide stream or nitrogen stream is not used as an injection gas stream to enhance oil recovery, it may be stored, transported, subjected to further transformation and/or vented to the atmosphere.
- the carbon dioxide stream is preferably dehydrated prior to compression.
- the carbon dioxide stream can also be purified as needed to remove substituents such as, for example, nitrogen, argon and/or oxygen.
- FIG. 1 illustrates one embodiment of a system for carrying out an enhanced oil recovery process.
- a feed of air 2 is fed to a cryogenic air separation unit 20 through an air inlet.
- An oxygen stream 4 exits the air separation unit through an oxygen outlet and nitrogen stream 7 exits the air separation unit through a nitrogen outlet.
- the oxygen stream 4 is delivered to an oxygen fired steam generator 10 in fluid communication with the oxygen outlet of the cryogenic air separation unit.
- the steam generator 10 receives fuel 1 through a fuel inlet and water 8 through a water inlet.
- steam 3 and exhaust in the form of water and carbon dioxide stream 6 are formed, respectively.
- the bulk of the water is condensed out in condenser 40 as water stream 11 .
- the remaining carbon dioxide stream 9 is formed.
- the cryogenic air separation unit 20 can include at least one steam turbine driven compressor in fluid communication with the steam outlet from the steam generator 10 such that the compressor is driven by steam 3 .
- Steam 3 can also be used to drive other rotating equipment.
- steam 5 can be diverted to drive a power generation unit 30 .
- Power produced by the power generation unit 30 can be used in any convenient way, including providing power to motors which drive the compressors of air separation unit 20 .
- carbon dioxide stream 9 can be dehydrated and/or purified prior to compression.
- the carbon dioxide stream can then be compressed to form an injection gas stream for injection into an oil-producing reservoir 50 a .
- Dehydration can also take place in a compression train.
- nitrogen stream 7 can be compressed to form an injection gas stream for injection into an oil-producing reservoir 50 b .
- Carbon dioxide stream 9 or nitrogen stream 7 can be injected into an oil-producing reservoir to enhance oil recovery.
- both the carbon dioxide and nitrogen streams are injected, sequentially, injecting the carbon dioxide stream first, followed by the nitrogen stream, or vice versa, depending on the specific conditions of the reservoir.
- nitrogen may be first injected to pressurize the contents of the reservoir, and carbon dioxide may be then injected to combine with the oil.
- the carbon dioxide stream is injected into one oil-producing reservoir and the nitrogen stream is injected into a separate oil-producing reservoir in a separate location.
Abstract
Disclosed is an integrated enhanced oil recovery process and system for use in recovering relatively light oil from an oil-producing reservoir utilizing the injection of nitrogen produced by air separation in a cryogenic air separation unit and/or carbon dioxide produced by combustion in an oxygen fired steam generator fed by oxygen from the air separation unit. The steam produced may be utilized for suitable uses other than injection into an oil-producing reservoir, including heat generation and driving steam turbines, which in turn drive rotary equipment such as electrical generators, pumps and compressors.
Description
- The present disclosure relates to the generation of gases for enhancing the recovery of oil from a reservoir. More particularly, the disclosure relates to the integration of an air separation unit and an oxygen-fired steam generator to produce nitrogen and carbon dioxide streams for use in enhanced oil recovery.
- Processes for enhancing the recovery of oil from an oil-producing reservoir, referred to as enhanced oil recovery (EOR) processes, may involve the injection of steam or gas into the reservoir. The steam or gas improves the flow characteristics of the oil in order to facilitate production. When the oil to be produced is heavy oil, e.g., having an API gravity of between about 10 and about 20, steam is appropriate for injection. When the oil to be produced is relatively light, e.g., having an API gravity of between about 25 and about 50, steam is not normally appropriate for injection, but rather a gas which is miscible with the oil is used, such as nitrogen or carbon dioxide. Either nitrogen or carbon dioxide may be preferred depending on the reservoir, the type of oil being produced and the availability of the nitrogen or carbon dioxide. If available and economic, carbon dioxide from natural reservoirs is generally utilized for EOR. The high cost of capturing carbon dioxide from anthropogenic sources has been a strong deterrent for this source of CO2 for EOR. Nitrogen for injection in an EOR process is also costly since the nitrogen is generally provided by nitrogen generation plants.
- It would be desirable to have an economic EOR process and system for use in recovery of relatively light oil utilizing nitrogen and carbon dioxide.
- These and other objects, features and advantages of the present invention will become better understood with regard to the following description, appended claims and accompanying drawings where:
-
FIG. 1 is a schematic drawing of an integrated process according to one embodiment in which a nitrogen stream and a carbon dioxide stream are generated for use in enhanced oil recovery. - According to one embodiment, a process for enhanced oil recovery process is provided. The process includes feeding air to a cryogenic air separation unit, operating the cryogenic air separation unit to produce an oxygen stream and a nitrogen stream, feeding the oxygen stream, water and a fuel to an oxygen fired steam generator, combusting the fuel in the oxygen fired steam generator to produce steam and a carbon dioxide stream, utilizing the steam for a use other than injection into an oil-producing reservoir, compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream, and injecting the injection gas stream into at least one oil-producing reservoir.
- According to another embodiment, a system for enhanced oil recovery is provided. The system includes a cryogenic air separation unit having an air inlet, and oxygen outlet and a nitrogen outlet, an oxygen fired steam generator in fluid communication with the oxygen outlet of the cryogenic air separation unit and further having a fuel inlet, exhaust gas outlet and steam outlet, the steam outlet being in fluid communication with equipment selected from the group consisting of a steam turbine, a heater and a boiler, a means for carbon dioxide dehydration and purification, a compressor for compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream, and a means for injecting the injection gas stream into an oil-producing reservoir.
- According to one embodiment, a process for enhanced oil recovery process is provided in which a cryogenic air separation unit is operated to transform a feed of air to an oxygen stream and a nitrogen stream. The oxygen stream, water and a fuel are fed to an oxygen fired steam generator in which the fuel is combusted to produce steam and a carbon dioxide stream. In one embodiment, the fuel is primarily methane. The oxygen stream contains at least 90% oxygen, even at least 95% oxygen and even at least 97% oxygen. Higher purity oxygen will result in a higher purity carbon dioxide stream.
- The steam is utilized for any suitable use other than injection into an oil-producing reservoir. In one embodiment, the steam is fed back to the air separation unit to drive steam turbines that are directly linked to compressors within the air separation unit. In one embodiment, the steam is used to generate power, for example, by driving a turbine in a power generation unit. In one embodiment the steam is used to drive steam turbines that are directly linked to other rotary equipment, such as pumps and compressors. The power generated can be used for any convenient purpose, including motor-driven air separation unit compressors. In one embodiment the steam is used to provide process heat via a heat exchanger, with the steam condensing on one side of the heat exchanger and the process fluid heating up on the other side of the heat exchanger.
- Either the carbon dioxide stream produced by combustion in the oxygen fired steam generator or the nitrogen stream produced by air separation in the cryogenic air separation unit can be compressed to form an injection gas stream which is injected into an oil-producing reservoir to enhance oil recovery. The injection gas stream is compressed to a pressure between about 1 psi and about 20,000 psi for injection. If either the carbon dioxide stream or nitrogen stream is not used as an injection gas stream to enhance oil recovery, it may be stored, transported, subjected to further transformation and/or vented to the atmosphere.
- The carbon dioxide stream is preferably dehydrated prior to compression. The carbon dioxide stream can also be purified as needed to remove substituents such as, for example, nitrogen, argon and/or oxygen.
-
FIG. 1 illustrates one embodiment of a system for carrying out an enhanced oil recovery process. A feed ofair 2 is fed to a cryogenicair separation unit 20 through an air inlet. Anoxygen stream 4 exits the air separation unit through an oxygen outlet andnitrogen stream 7 exits the air separation unit through a nitrogen outlet. Theoxygen stream 4 is delivered to an oxygen firedsteam generator 10 in fluid communication with the oxygen outlet of the cryogenic air separation unit. Thesteam generator 10 receivesfuel 1 through a fuel inlet andwater 8 through a water inlet. As a result of the heat of combustion and actual combustion within thesteam generator 10,steam 3 and exhaust in the form of water andcarbon dioxide stream 6 are formed, respectively. The bulk of the water is condensed out incondenser 40 aswater stream 11. The remainingcarbon dioxide stream 9 is formed. - The cryogenic
air separation unit 20 can include at least one steam turbine driven compressor in fluid communication with the steam outlet from thesteam generator 10 such that the compressor is driven bysteam 3. Steam 3 can also be used to drive other rotating equipment. For instance,steam 5 can be diverted to drive apower generation unit 30. Power produced by thepower generation unit 30 can be used in any convenient way, including providing power to motors which drive the compressors ofair separation unit 20. - In one embodiment,
carbon dioxide stream 9 can be dehydrated and/or purified prior to compression. The carbon dioxide stream can then be compressed to form an injection gas stream for injection into an oil-producingreservoir 50 a. Dehydration can also take place in a compression train. - Likewise,
nitrogen stream 7 can be compressed to form an injection gas stream for injection into an oil-producingreservoir 50 b.Carbon dioxide stream 9 ornitrogen stream 7 can be injected into an oil-producing reservoir to enhance oil recovery. - In one embodiment, both the carbon dioxide and nitrogen streams are injected, sequentially, injecting the carbon dioxide stream first, followed by the nitrogen stream, or vice versa, depending on the specific conditions of the reservoir. For example, in order to facilitate recovery of oil from a reservoir, nitrogen may be first injected to pressurize the contents of the reservoir, and carbon dioxide may be then injected to combine with the oil. In another embodiment, the carbon dioxide stream is injected into one oil-producing reservoir and the nitrogen stream is injected into a separate oil-producing reservoir in a separate location.
- Unless otherwise specified, the recitation of a genus of elements, materials or other components, from which an individual component or mixture of components can be selected, is intended to include all possible sub-generic combinations of the listed components and mixtures thereof. Also, “comprise,” “include” and its variants, are intended to be non-limiting, such that recitation of items in a list is not to the exclusion of other like items that may also be useful in the materials, compositions, methods and systems of this invention.
Claims (12)
1. An enhanced oil recovery process, comprising:
a. feeding air to a cryogenic air separation unit;
b. operating the cryogenic air separation unit to produce an oxygen stream and a nitrogen stream;
c. feeding the oxygen stream, water and a fuel to an oxygen fired steam generator;
d. combusting the fuel in the oxygen fired steam generator to convert the water to steam and produce a carbon dioxide stream;
e. utilizing the steam for a use other than injection into an oil-producing reservoir;
f. compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream; and
g. injecting the injection gas stream into a first oil-producing reservoir.
2. The process of claim 1 , further comprising compressing the other of the carbon dioxide stream and the nitrogen stream to form a second injection gas stream; and injecting the second injection gas treatment into a second oil-producing reservoir.
3. The process of claim 1 , wherein the steam is utilized to drive steam turbines which in turn drive compressors in the air separation unit.
4. The process of claim 1 , wherein the steam is utilized to generate power.
5. The process of claim 4 , further comprising utilizing the power to drive motor-driven compressors in the air separation unit.
6. The process of claim 1 wherein the oxygen stream comprises at least 90% purity oxygen.
7. The process of claim 1 , further comprising dehydrating the carbon dioxide stream.
8. The process of claim 1 , further comprising purifying the carbon dioxide stream prior to the compressing step.
9. The process of claim 1 wherein the injection gas stream comprises carbon dioxide, further comprising compressing the nitrogen stream to form a second injection gas stream and injecting the second injection gas stream into the first oil-producing reservoir.
10. The process of claim 1 wherein the injection gas stream comprises nitrogen, further comprising compressing the carbon dioxide stream to form a second injection gas stream and injecting the second injection gas stream into the first oil-producing reservoir.
11. A system for enhanced oil recovery, comprising:
a. a cryogenic air separation unit having an air inlet, and oxygen outlet and a nitrogen outlet;
b. an oxygen fired steam generator in fluid communication with the oxygen outlet of the cryogenic air separation unit and further having a fuel inlet, water inlet, exhaust gas outlet and steam outlet, the steam outlet being in fluid communication with equipment selected from the group consisting of a steam turbine, a heater and a boiler;
c. a means for carbon dioxide dehydration;
d. a compressor for compressing at least one of the carbon dioxide stream and the nitrogen stream to form an injection gas stream; and
e. a means for injecting the injection gas stream into an oil-producing reservoir.
12. The system of claim 11 wherein the cryogenic air separation unit comprises at least one steam turbine driven compressor in fluid communication with the steam outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/190,245 US20130025866A1 (en) | 2011-07-25 | 2011-07-25 | Integrated process utilizing nitrogen and carbon dioxide streams for enhanced oil recovery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US13/190,245 US20130025866A1 (en) | 2011-07-25 | 2011-07-25 | Integrated process utilizing nitrogen and carbon dioxide streams for enhanced oil recovery |
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US20130025866A1 true US20130025866A1 (en) | 2013-01-31 |
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US13/190,245 Abandoned US20130025866A1 (en) | 2011-07-25 | 2011-07-25 | Integrated process utilizing nitrogen and carbon dioxide streams for enhanced oil recovery |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130106117A1 (en) * | 2011-10-26 | 2013-05-02 | Omar Angus Sites | Low Emission Heating of A Hydrocarbon Formation |
DE202013010650U1 (en) | 2013-11-23 | 2014-01-10 | Linde Aktiengesellschaft | Combined unit of buoyant units with conveyor system, power plant and air separation plant |
US20160076345A1 (en) * | 2014-09-16 | 2016-03-17 | Husky Oil Operations Limited | Produced water steam generation process using produced water boiler with gas turbine |
CN106968651A (en) * | 2017-05-02 | 2017-07-21 | 中国石油化工股份有限公司 | A kind of nitrogen and carbon dioxide composite swallowing-spitting oil extraction |
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US4546829A (en) * | 1981-03-10 | 1985-10-15 | Mason & Hanger-Silas Mason Co., Inc. | Enhanced oil recovery process |
US4640355A (en) * | 1985-03-26 | 1987-02-03 | Chevron Research Company | Limited entry method for multiple zone, compressible fluid injection |
US5979183A (en) * | 1998-05-22 | 1999-11-09 | Air Products And Chemicals, Inc. | High availability gas turbine drive for an air separation unit |
US20060115691A1 (en) * | 2002-12-10 | 2006-06-01 | Aker Kvaemer Engineering & Technology | Method for exhaust gas treatment in a solid oxide fuel cell power plant |
US7481275B2 (en) * | 2002-12-13 | 2009-01-27 | Statoil Asa | Plant and a method for increased oil recovery |
US7866389B2 (en) * | 2007-01-19 | 2011-01-11 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and apparatus for enhanced hydrocarbon recovery |
-
2011
- 2011-07-25 US US13/190,245 patent/US20130025866A1/en not_active Abandoned
Patent Citations (6)
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US4546829A (en) * | 1981-03-10 | 1985-10-15 | Mason & Hanger-Silas Mason Co., Inc. | Enhanced oil recovery process |
US4640355A (en) * | 1985-03-26 | 1987-02-03 | Chevron Research Company | Limited entry method for multiple zone, compressible fluid injection |
US5979183A (en) * | 1998-05-22 | 1999-11-09 | Air Products And Chemicals, Inc. | High availability gas turbine drive for an air separation unit |
US20060115691A1 (en) * | 2002-12-10 | 2006-06-01 | Aker Kvaemer Engineering & Technology | Method for exhaust gas treatment in a solid oxide fuel cell power plant |
US7481275B2 (en) * | 2002-12-13 | 2009-01-27 | Statoil Asa | Plant and a method for increased oil recovery |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130106117A1 (en) * | 2011-10-26 | 2013-05-02 | Omar Angus Sites | Low Emission Heating of A Hydrocarbon Formation |
DE202013010650U1 (en) | 2013-11-23 | 2014-01-10 | Linde Aktiengesellschaft | Combined unit of buoyant units with conveyor system, power plant and air separation plant |
US20160076345A1 (en) * | 2014-09-16 | 2016-03-17 | Husky Oil Operations Limited | Produced water steam generation process using produced water boiler with gas turbine |
CN106968651A (en) * | 2017-05-02 | 2017-07-21 | 中国石油化工股份有限公司 | A kind of nitrogen and carbon dioxide composite swallowing-spitting oil extraction |
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Owner name: CHEVRON U.S.A. INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LOWE, CLIFFORD MICHAEL;REEL/FRAME:026644/0411 Effective date: 20110725 |
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STCB | Information on status: application discontinuation |
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