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公开(公告)号:US20220389304A1
公开(公告)日:2022-12-08
申请号:US17770559
申请日:2020-10-30
Applicant: CHEVRON ORONITE COMPANY LLC , CHEVRON U.S.A. INC.
Inventor: Varadarajan DWARAKANATH , Gayani W. PINNAWALA , Andrew M. THOMAS , Curtis B. CAMPBELL , Andrew M. DAVIDSON , Ping WANG
Abstract: The present disclosure is directed to surfactants (in particular olefin sulfonates), surfactant packages, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making olefin sulfonate surfactants are also described.
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公开(公告)号:US20200056087A1
公开(公告)日:2020-02-20
申请号:US16528183
申请日:2019-07-31
Applicant: Chevron U.S.A. Inc.
Inventor: Nabijan NIZAMIDIN , Gayani W. PINNAWALA , Guo-Qing TANG , Varadarajan DWARAKANATH , Gregory A. WINSLOW , Jordan Taylor Isbell , Taimur Malik
IPC: C09K8/584 , C09K8/588 , C09K8/66 , C09K8/68 , C09K8/60 , C09K8/80 , E21B43/20 , E21B43/26 , E21B47/10
Abstract: Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.
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公开(公告)号:US20190233715A1
公开(公告)日:2019-08-01
申请号:US16262211
申请日:2019-01-30
Applicant: Chevron U.S.A. Inc. , Chevron Oronite Company LLC
Inventor: Dennis A. ALEXIS , Gayani PINNAWALA ARACHCHILAGE , Varadarajan DWARAKANATH , Do Hoon KIM , Taimur MALIK , Gregory A. WINSLOW , Aaron WILHELM
CPC classification number: C09K8/584 , C08K5/09 , C08K5/37 , C08L33/26 , C09K8/52 , C09K8/588 , C09K8/602 , C09K8/68 , C09K8/88 , C09K2208/28 , F17D1/16
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
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公开(公告)号:US20220372361A1
公开(公告)日:2022-11-24
申请号:US17771587
申请日:2020-10-30
Applicant: CHEVRON U.S.A. INC. , CHEVRON ORONITE COMPANY LLC
Inventor: Gayani W. PINNAWALA , Varadarajan DWARAKANATH , Andrew M. THOMAS , Curtis B. CAMPBELL , Andrew M. DAVIDSON , Ping WANG
Abstract: The present disclosure is directed to surfactants (in particular olefin sulfonates), surfactant packages, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making olefin sulfonate surfactants are also described.
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公开(公告)号:US20220363979A1
公开(公告)日:2022-11-17
申请号:US17771984
申请日:2020-10-30
Applicant: CHEVRON ORONITE COMPANY LLC , CHEVRON U.S.A. INC.
Inventor: Andrew M. THOMAS , Curtis B. CAMPBELL , Gayani W. PINNAWALA , Varadarajan DWARAKANATH , Andrew M. DAVIDSON , Ping WANG
Abstract: The present disclosure is directed to surfactants (in particular olefin sulfonates), surfactant packages, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making olefin sulfonate surfactants are also described.
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公开(公告)号:US20210179930A1
公开(公告)日:2021-06-17
申请号:US17121333
申请日:2020-12-14
Applicant: Chevron U.S.A. Inc.
Inventor: Gayani W. PINNAWALA , Sujeewa S. PALAYANGODA , Varadarajan DWARAKANATH , Mohamad SALMAN , Mohsen S. TAGAVIFAR
Abstract: Disclosed herein are methods and composition for breaking foam, emulsions, or any combination thereof.
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17.
公开(公告)号:US20200317992A1
公开(公告)日:2020-10-08
申请号:US16635904
申请日:2018-07-31
Applicant: CHEVRON U.S.A. INC.
Inventor: Dustin L. WALKER , Gayani PINNAWALA ARACHCHILAGE , Nabi NIZAMIDIN , Varadarajan DWARAKANATH , Guo-Qing TANG , Dustin J. LOWRY , Tetsuo Art INOUYE , Taimur MALIK
Abstract: Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises a non-ionic surfactant and optionally one or more secondary surfactants.
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公开(公告)号:US20190233716A1
公开(公告)日:2019-08-01
申请号:US16262216
申请日:2019-01-30
Applicant: Chevron U.S.A. Inc. , Chevron Oronite Company LLC
Inventor: Dennis A. ALEXIS , Gayani PINNAWALA ARACHCHILAGE , Varadarajan DWARAKANATH , Do Hoon KIM , Taimur MALIK , Gregory A. WINSLOW , Aaron WILHELM
CPC classification number: C09K8/584 , C08K5/09 , C08K5/37 , C08L33/26 , C09K8/52 , C09K8/588 , C09K8/602 , C09K8/68 , C09K8/88 , C09K2208/28 , F17D1/16
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
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19.
公开(公告)号:US20240271032A1
公开(公告)日:2024-08-15
申请号:US18464691
申请日:2023-09-11
Applicant: CHEVRON U.S.A. INC.
Inventor: Dustin L. WALKER , Gayani W. PINNAWALA , Nabijan NIZAMIDIN , Varadarajan DWARAKANATH , Guo-Qing TANG , Dustin J. LOWRY , Tetsuo Art INOUYE , Taimur MALIK
CPC classification number: C09K8/604 , C09K8/602 , C09K8/68 , C09K8/74 , C09K8/80 , C09K8/86 , E21B43/267 , E21B43/27 , E21B47/11 , C09K2208/10 , C09K2208/12 , C09K2208/26 , C09K2208/28 , C09K2208/32
Abstract: Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises an anionic surfactant and optionally one or more secondary surfactants.
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公开(公告)号:US20240052234A1
公开(公告)日:2024-02-15
申请号:US18488079
申请日:2023-10-17
Applicant: CHEVRON U.S.A. INC.
Inventor: Nabijan NIZAMIDIN , Gayani W. PINNAWALA , Guo-Qing TANG , Varadarajan DWARAKANATH , Gregory A. WINSLOW , Jordan Taylor ISBELL , Taimur MALIK
IPC: C09K8/584 , C09K8/588 , C09K8/60 , C09K8/66 , C09K8/68 , C09K8/80 , E21B43/20 , E21B43/26 , E21B47/11
CPC classification number: C09K8/584 , C09K8/588 , C09K8/602 , C09K8/665 , C09K8/68 , C09K8/80 , E21B43/20 , E21B43/26 , E21B47/11
Abstract: Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.
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