Patent ID: 11884871
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A wellbore fluid composition, comprising:
an oleaginous base fluid; and
a polymeric rheology modifier incorporating a polar comonomer at a percent by weight (wt %) in the range of 1 wt % to 50 wt %;
wherein the polymeric rheology modifier is present in the wellbore fluid composition at a concentration of 0.5 ppb to 3 ppb;
wherein the polymeric rheology modifier is poly(ethylene-co-acrylic acid) represented by the structure:, wherein X ranges from 30 to 60 and y ranges from 1.5 to 2; wherein M+ represents a calcium salt.