公开(公告)号：US20220290031A1

公开(公告)日：2022-09-15

申请号：US17635222

申请日：2020-08-14

Applicant: Chevron U.S.A. Inc.

Inventor： Ruth Ellen HAHN ,  Varadarajan DWARAKANATH ,  Kerry SPILKER ,  Gregory A. WINSLOW ,  Sophany THACH ,  Gayani W. PINNAWALA ,  Christopher GRIFFITH ,  Harold Charles LINNEMEYER ,  Robert Neil TROTTER

IPC: C09K8/38 ,  C09K8/60 ,  C09K8/94 ,  C09K8/584

Abstract: Described herein are aqueous based foams for use in drilling operations. The foams can be used in below bubble point drilling operations to control the migration of reservoir gases (e.g., hydrogen sulfide) to the surface.

公开(公告)号：US20230084576A1

公开(公告)日：2023-03-16

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

Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.

公开(公告)号：US20210002544A1

公开(公告)日：2021-01-07

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: C09K8/94 ,  C09K8/60 ,  C09K8/594 ,  C09K8/584 ,  C09K8/588 ,  E21B33/138 ,  E21B43/26

Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.