公开(公告)号：US11639461B2

公开(公告)日：2023-05-02

申请号：US15999540

申请日：2016-02-19

Applicant: M-I L.L.C.[

Inventor： Pawilai Chinwangso ,  Hui Zhang ,  Changping Sui ,  Paulo Pauferro, Jr.

IPC: C09K8/36

Abstract: A wellbore fluid may include a non-oleaginous internal phase, an oleaginous external phase, and an emulsifier having a molecular weight of at least 700 daltons, whereby the emulsifier may include at least one tertiary amine. A method of completing a wellbore operation may include injecting a wellbore fluid downhole, the wellbore fluid including a non-oleaginous internal phase, an oleaginous external phase, and an emulsifier having a molecular weight of at least 700 daltons. The emulsifier may include at least one tertiary amine. The method may further include injecting a wash fluid comprising a protonating agent downhole.

公开(公告)号：US10920124B2

公开(公告)日：2021-02-16

申请号：US16074060

申请日：2017-01-30

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Paulo Pauferro, Jr.

IPC: C09K8/36

Abstract: Compositions herein may include an oleaginous continuous phase, an aqueous discontinuous phase, a first clay comprising an organophilic smectite clay, and a second clay comprising a magnesium silicate clay. Methods herein may include circulating such fluids downhole as well as admixing a magnesium silicate dispersed clay and an organophilic smectite clay in an oleaginous base fluid.