-
公开(公告)号：US11834609B2
公开(公告)日：2023-12-05
申请号：US16635906
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: 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 surfactant and optionally one or more secondary surfactants. Also provided are methods of using the stabilized injection fluids in stimulation operations.
-
公开(公告)号：US11787998B2
公开(公告)日：2023-10-17
申请号：US17853283
申请日：2022-06-29
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.
-
公开(公告)号：US11248160B2
公开(公告)日：2022-02-15
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
IPC: C09K8/584 , C09K8/588 , C09K8/68 , F17D1/16 , C09K8/88 , C09K8/52 , E21B43/26 , C08L33/26 , C09K8/60 , C08K5/09 , C08K5/37
Abstract: Disclosed are compositions and methods for use in oil and gas operations.
-
公开(公告)号：US20220033706A1
公开(公告)日：2022-02-03
申请号：US17395933
申请日：2021-08-06
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.
-
公开(公告)号：US10344129B2
公开(公告)日：2019-07-09
申请号：US15835020
申请日：2017-12-07
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.
-
Patent Agency Ranking
公开(公告)号：US20180037794A1
公开(公告)日：2018-02-08
申请号：US15666686
申请日：2017-08-02
Applicant: Chevron U.S.A. Inc.
Inventor： Douglas G. Naae , Gregory A. Winslow , Varadarajan Dwarakanath , Taimur Malik , Gayani Pinnawala Arachchilage
CPC classification number: C09K8/20 , C08G65/2606 , C08G65/2612 , C08K5/057 , C09K8/524 , C09K8/584 , C09K8/604
Abstract: Provided herein are novel surfactant compositions and methods having application in a variety of fields including enhanced oil recovery, the cleaning industry as well as groundwater remediation. The surfactant compositions are based on lignin bio-oil with a phenol hydroxyl group as the main functional group. The compositions include carboxylic surfactant s and mixed hydrophilic and hydrophobic surfactant structures, which can be used for the recovery of crude oil compositions from challenging reservoirs.
-
公开(公告)号：US20170158948A1
公开(公告)日：2017-06-08
申请号：US15372170
申请日：2016-12-07
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
CPC classification number: C09K8/588 , C09K8/584 , C09K8/68 , C09K8/882 , C09K2208/28 , E21B43/20 , E21B43/26
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.
-
28.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
Applicant: CHEVRON U.S.A. INC.
Inventor： 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: E21B43/267 , C09K8/588 , C09K8/584
CPC classification number: E21B43/267 , C09K8/588 , C09K8/584 , C09K2208/28
Abstract: 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.
-
公开(公告)号：US11802236B2
公开(公告)日：2023-10-31
申请号：US17861987
申请日：2022-07-11
Applicant: CHEVRON U.S.A. INC.
Inventor： Ruth Ellen Hahn , Taimur Malik , Samiha Said Elsayed Morsy , Nabijan Nizamidin , 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
CPC classification number: C09K8/94 , C09K8/584 , C09K8/588 , C09K8/594 , C09K8/602 , C09K8/665 , C09K8/74 , E21B33/138 , E21B43/162 , E21B43/166 , E21B43/17 , E21B43/255 , E21B43/26 , E21B43/267 , E21B2200/20
Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.
-
30.发明授权公开(公告)号：US11760921B2
公开(公告)日：2023-09-19
申请号：US16635904
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: 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.
-
-
-
-
-
-
-
-
-
Search Results
53
records
(took 0.038 seconds)
