公开(公告)号：US20220333003A1

公开(公告)日：2022-10-20

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

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：US11085259B2

公开(公告)日：2021-08-10

申请号：US16697426

申请日：2019-11-27

Applicant: CHEVRON U.S.A. INC.

Inventor： Nabijan Nizamidin ,  Harold Linnemeyer

IPC: E21B21/08 ,  G01N11/04 ,  E21B43/267

Abstract: The present invention relates generally to systems and processes for improved drag reduction estimation and measurement and more specifically to portable drag reduction analyzers and processes for upscaling drag reduction data for a variety of field applications. A drag reduction parameter AB for the fluid mixture is used for determining drag reduction for a fluid mixture in an oil field or pipeline operation.

公开(公告)号：US11939524B2

公开(公告)日：2024-03-26

申请号：US17891745

申请日：2022-08-19

Applicant: CHEVRON U.S.A. INC.

Inventor： Samiha Said Elsayed Morsy ,  Nabijan Nizamidin ,  Taimur Malik ,  Mohsen S. Tagavifar

IPC: C09K8/94 ,  C09K8/584 ,  C09K8/588 ,  C09K8/594 ,  C09K8/60 ,  C09K8/66 ,  C09K8/74 ,  E21B33/138 ,  E21B43/16 ,  E21B43/17 ,  E21B43/25 ,  E21B43/26 ,  E21B43/267

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.

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

IPC: C09K8/68 ,  C09K8/60 ,  E21B47/11 ,  C09K8/86 ,  E21B43/27 ,  C09K8/74 ,  C09K8/80 ,  E21B43/267

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：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.

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

IPC: C09K8/68 ,  C09K8/60 ,  E21B47/11 ,  C09K8/86 ,  E21B43/27 ,  C09K8/74 ,  C09K8/80 ,  E21B43/267

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.

公开(公告)号：US11384284B2

公开(公告)日：2022-07-12

申请号：US16922993

申请日：2020-07-07

Applicant: Chevron U.S.A. Inc.

Inventor： Ruth Ellen Hahn ,  Taimur Malik ,  Samiha Said Elsayed Morsy ,  Nabijan Nizamidin ,  Mohsen S. Tagavifar

IPC: E21B33/138 ,  E21B43/17 ,  C09K8/94 ,  C09K8/60 ,  C09K8/594 ,  C09K8/588 ,  E21B43/26 ,  C09K8/584 ,  C09K8/66 ,  C09K8/74 ,  E21B43/16 ,  E21B43/267 ,  E21B43/25

Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a foamed pressure protection composition into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.

公开(公告)号：US20240183259A1

公开(公告)日：2024-06-06

申请号：US18437718

申请日：2024-02-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Dawit Yenesew Dagnaw ,  Yifan Li ,  Brian Paul Price ,  Nabijan Nizamidin ,  Wei Shi ,  Omar Visairo ,  Kristen Anne Belcourt ,  Leonardo F. Chaves Leal ,  Aleisha Nichole Guiler ,  Amos Sunghyun Kim ,  Neil Robert Steil Dilorenzo

IPC: E21B43/26 ,  E21B37/06 ,  E21B43/20

CPC classification number: E21B43/26 ,  E21B37/06 ,  E21B43/20

Abstract: The present invention relates generally to processes for adding a chemical composition to a produced water mixture upstream of a pad related to a well to be fracked. The added chemical composition comprises a drag reducing agent, or a biocide, or a scale inhibitor, or any combination thereof. The produced water mixture comprising the added chemical composition may then be transferred in a pipeline to the well to be fracked. This offers a number of advantages that may include, for example, reducing the footprint at the pad, improved efficacy of biocide, reduced time to transfer produced water, and/or reduced pumping time during the fracking.