公开(公告)号：US20180298706A1

公开(公告)日：2018-10-18

申请号：US15952137

申请日：2018-04-12

Applicant: M-I L.L.C.

Inventor： Carlos Rodriguez

IPC: E21B21/00 ,  C09K8/03 ,  C09K8/05 ,  C09K8/26

Abstract: A method comprising drilling through a plurality of differing zones of a subterranean formation using a drilling fluid comprising a non-oleaginous continuous phase, an oleaginous discontinuous phase and at least a first salt dissolved into the non-oleaginous continuous phase. The amount of the at least first salt dissolved into the non-oleaginous continuous phase is maintained such that a density of the drilling fluid varies by no more than 10% while drilling through the plurality of zones.

公开(公告)号：US11441367B2

公开(公告)日：2022-09-13

申请号：US15952137

申请日：2018-04-12

Applicant: M-I L.L.C.

Inventor： Carlos Rodriguez

IPC: E21B21/00 ,  C09K8/32 ,  C09K8/26 ,  C09K8/05 ,  C09K8/03

Abstract: A method comprising drilling through a plurality of differing zones of a subterranean formation using a drilling fluid comprising a non-oleaginous continuous phase, an oleaginous discontinuous phase and at least a first salt dissolved into the non-oleaginous continuous phase. The amount of the at least first salt dissolved into the non-oleaginous continuous phase is maintained such that a density of the drilling fluid varies by no more than 10% while drilling through the plurality of zones.