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公开(公告)号：US20220372363A1
公开(公告)日：2022-11-24
申请号：US17670988
申请日：2022-02-14
发明人： Dennis A. Alexis , Gayani Pinnawala Arachchilage , Varadarajan Dwarakanath , Do Hoon Kim , Taimur Malik , Gregory A. Winslow , Aaron Wilhelm
IPC分类号： C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , E21B43/26 , C08L33/26 , C09K8/60
摘要： Disclosed are compositions and methods for use in oil and gas operations.
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公开(公告)号：US20180275036A1
公开(公告)日：2018-09-27
申请号：US15996040
申请日：2018-06-01
申请人： Chevron U.S.A. Inc.
发明人： Varadarajan Dwarakanath , Dustin L. Walker , David R. Espinosa , Dennis A. Alexis , Harold C. Linnemeyer , Marlon Solano
CPC分类号： G01N11/00 , B01D2101/04 , E21B43/16 , E21B43/26 , E21B47/00 , G01L13/00 , G01N2011/006
摘要： Provided herein are portable apparatus as well as methods of analyzing an injection fluid using these portable apparatus. In some embodiments, the injection fluid can contain a polymer, but a polymer is not necessary. For example, the portable apparatus and methods may be used to determine viscosity, long term injectivity, filter ratio, or any combination thereof of the injection fluid.
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公开(公告)号：US20180155505A1
公开(公告)日：2018-06-07
申请号：US15835020
申请日：2017-12-07
申请人： Chevron U.S.A. Inc.
发明人： Do Hoon Kim , Dennis A. Alexis , Varadarajan Dwarakanath , David R. Espinosa , Taimur Malik , Peter G. New , Adam C. Jackson , Christopher Michael Niemi
CPC分类号： C08J3/005 , C08J3/03 , C08J2300/00 , C08J2333/26 , C09K8/588 , E21B43/16 , E21B43/26
摘要： Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US11248160B2
公开(公告)日：2022-02-15
申请号：US16262211
申请日：2019-01-30
发明人： Dennis A. Alexis , Gayani Pinnawala Arachchilage , Varadarajan Dwarakanath , Do Hoon Kim , Taimur Malik , Gregory A. Winslow , Aaron Wilhelm
IPC分类号： C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , E21B43/26 , C08L33/26 , C09K8/60 , C08K5/09 , C08K5/37
摘要： Disclosed are compositions and methods for use in oil and gas operations.
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公开(公告)号：US10344129B2
公开(公告)日：2019-07-09
申请号：US15835020
申请日：2017-12-07
申请人： Chevron U.S.A. Inc.
发明人： Do Hoon Kim , Dennis A. Alexis , Varadarajan Dwarakanath , David R. Espinosa , Taimur Malik , Peter G. New , Adam C. Jackson , Christopher Michael Niemi
摘要： Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US20180031462A1
公开(公告)日：2018-02-01
申请号：US15661914
申请日：2017-07-27
申请人： Chevron U.S.A. Inc.
发明人： Varadarajan Dwarakanath , Dustin L. Walker , David R. Espinosa , Dennis A. Alexis , Harold C. Linnemeyer , Marlon Solano
CPC分类号： G01N11/00 , B01D2101/04 , E21B43/16 , E21B43/26 , E21B47/00 , G01L13/00 , G01N2011/006
摘要： Provided herein are portable apparatus as well as methods of analyzing an injection fluid using these portable apparatus. In some embodiments, the injection fluid can contain a polymer, but a polymer is not necessary. For example, the portable apparatus and methods may be used to determine viscosity, long term injectivity, filter ratio, or any combination thereof of the injection fluid.
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7.发明公开公开(公告)号：US20230383636A1
公开(公告)日：2023-11-30
申请号：US18326409
申请日：2023-05-31
申请人： CHEVRON U.S.A. INC.
发明人： Gojko Matovic , Nabijan Nizamidin , Michael Ogechukwuka Unomah , Do Hoon Kim , Varadarajan Dwarakanath , Taimur Malik , Gayani W. Pinnawala , Dennis A. Alexis , Samuel Wei-en Lau
IPC分类号： E21B43/267 , C09K8/588 , C09K8/584
CPC分类号： E21B43/267 , C09K8/588 , C09K8/584 , C09K2208/28
摘要： Described are compositions and methods for use in oil and gas operations. The methods can decrease pressure drop along a lateral segment of a wellbore in an unconventional subterranean formation.
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公开(公告)号：US11261300B2
公开(公告)日：2022-03-01
申请号：US17121325
申请日：2020-12-14
申请人： Chevron U.S.A. Inc.
发明人： Do Hoon Kim , Dennis A. Alexis , Varadarajan Dwarakanath , David R. Espinosa , Taimur Malik , Peter G. New , Adam C. Jackson , Christopher Michael Niemi
摘要： Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US11008502B2
公开(公告)日：2021-05-18
申请号：US16262216
申请日：2019-01-30
发明人： Dennis A. Alexis , Gayani Pinnawala Arachchilage , Varadarajan Dwarakanath , Do Hoon Kim , Taimur Malik , Gregory A. Winslow , Aaron Wilhelm
IPC分类号： E21B43/26 , C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , C08L33/26 , C09K8/60 , C08K5/09 , C08K5/37
摘要： Disclosed are compositions and methods for use in oil and gas operations.
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公开(公告)号：US10436693B2
公开(公告)日：2019-10-08
申请号：US15661914
申请日：2017-07-27
申请人： Chevron U.S.A. Inc.
发明人： Varadarajan Dwarakanath , Dustin L. Walker , David R. Espinosa , Dennis A. Alexis , Harold C. Linnemeyer , Marlon Solano
摘要： Provided herein are portable apparatus as well as methods of analyzing an injection fluid using these portable apparatus. In some embodiments, the injection fluid can contain a polymer, but a polymer is not necessary. For example, the portable apparatus and methods may be used to determine viscosity, long term injectivity, filter ratio, or any combination thereof of the injection fluid.
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