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公开(公告)号：US20240174914A1
公开(公告)日：2024-05-30
申请号：US18336457
申请日：2023-06-16
Applicant: CHEVRON U.S.A. INC.
Inventor： Do Hoon Kim , Dennis Arun Alexis , Varadarajan Dwarakanath , David Espinosa , Taimur Malik , Logan Jackson , Tom Lynch , Ronald Robinson , Frances Fournier , Hong Yang , Sukhjit Aujla
Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted 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 inverted polymer solutions in oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US20240067860A1
公开(公告)日：2024-02-29
申请号：US18234318
申请日：2023-08-15
Applicant: CHEVRON U.S.A. INC.
Abstract: Described are compositions and methods of using them. The methods can be used to sequester carbon dioxide within a subterranean formation. The methods can include contacting carbon dioxide present in the subterranean formation with a complexing agent, resulting in precipitation of a carbonate or bicarbonate salt of the complexing agent within the subterranean formation.
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公开(公告)号：US11884879B2
公开(公告)日：2024-01-30
申请号：US17670988
申请日：2022-02-14
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
IPC: C09K8/52 , C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , E21B43/26 , C08L33/26 , C09K8/60 , C08K5/09 , C08K5/37
CPC classification number: C09K8/584 , C08L33/26 , C09K8/52 , C09K8/588 , C09K8/602 , C09K8/68 , C09K8/88 , E21B43/26 , F17D1/16 , C08K5/09 , C08K5/37 , C09K2208/28
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
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44.发明授权公开(公告)号：US11753582B2
公开(公告)日：2023-09-12
申请号：US16635733
申请日：2018-07-31
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: Described herein are compositions and methods that stabilize an 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 including a hydrophobic tail comprising from 6 to 60 carbon atoms and optionally one or more secondary surfactants.
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公开(公告)号：US11739254B2
公开(公告)日：2023-08-29
申请号：US17321993
申请日：2021-05-17
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
IPC: E21B43/26 , C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , C08L33/26 , C09K8/60 , C08K5/09 , C08K5/37
CPC classification number: C09K8/584 , C08L33/26 , C09K8/52 , C09K8/588 , C09K8/602 , C09K8/68 , C09K8/88 , E21B43/26 , F17D1/16 , C08K5/09 , C08K5/37 , C09K2208/28
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
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Patent Agency Ranking
46.发明授权公开(公告)号：US11421150B2
公开(公告)日：2022-08-23
申请号：US16922997
申请日：2020-07-07
Applicant: Chevron U.S.A. Inc.
Inventor： Samiha Said Elsayed Morsy , Nabijan Nizamidin , Taimur Malik , Mohsen S. Tagavifar
IPC: E21B43/16 , C09K8/94 , C09K8/60 , C09K8/594 , C09K8/588 , E21B33/138 , E21B43/26 , C09K8/584 , C09K8/66 , C09K8/74 , E21B43/267 , E21B43/17 , E21B43/25
Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting an aqueous pressure protection composition into an unconventional subterranean formation via an existing wellbore in fluid communication with a rock matrix of the unconventional subterranean formation prior to and/or during injection of a fracturing fluid into the unconventional subterranean formation via a new wellbore in fluid communication with the rock matrix of the unconventional subterranean formation; and producing a hydrocarbon from the existing wellbore during and/or after the injection of the fracturing fluid into the unconventional subterranean formation via the new wellbore.
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公开(公告)号：US11377586B2
公开(公告)日：2022-07-05
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 , C09K8/60 , C09K8/66 , 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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公开(公告)号：US11299409B2
公开(公告)日：2022-04-12
申请号：US15781893
申请日：2016-12-07
Applicant: KEMIRA OYJ , CHEVRON U.S.A. INC.
Inventor： Logan Jackson , Thomas J. Lynch , Ronald Robinson , Frances Fournier , Hong Yang , Sukhjit Aujla , Do Hoon Kim , Dennis Arun Alexis , Varadarajan Dwarakanath , David Espinosa , Taimur Malik
IPC: D21H17/37 , C02F1/56 , C02F11/14 , C08J3/07 , C02F11/147 , C02F103/10
Abstract: Provided herein are liquid polymer (LP) compositions comprising an acrylamide (co)polymer, as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of acrylamide (co)polymer of from about 50 to about 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 inverted polymer solutions in dewatering, clarification, flocculation and/or thickening applications, and the like.
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公开(公告)号：US20220098470A1
公开(公告)日：2022-03-31
申请号：US17321993
申请日：2021-05-17
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
IPC: C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , E21B43/26 , C08L33/26 , C09K8/60
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
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公开(公告)号：US20210171721A1
公开(公告)日：2021-06-10
申请号：US17121325
申请日：2020-12-14
Applicant: Chevron U.S.A. Inc.
Inventor： Do Hoon Kim , Dennis A. Alexis , Varadarajan Dwarakanath , David R. Espinosa , Taimur Malik , Peter G. New , Adam C. Jackson , Christopher Michael Niemi
Abstract: 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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