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.