The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Feb. 19, 2024
Schlumberger Technology Corporation, Sugar Land, TX (US);
Hui Zhang, Sugar Land, TX (US);
Changping Sui, The Woodlands, TX (US);
Zhipeng Wang, Houston, TX (US);
Phuong-Nam Nguyen, Houston, TX (US);
Shermin Akhtar, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A wellbore fluid includes an aqueous base fluid, and a fluid loss material formulated and configured to form a filtercake on surfaces of an earth formation responsive to exposure to a wellbore pressure. The fluid loss material includes at least one polymer, and a bridging material including a fatty acid salt of at least one of an alkali metal, an alkaline metal, ammonium, quaternary ammonium, a Group IIIA element, a Group IVA element, a Group VA element, a Group IB element, a Group IIB element, or a Group VIIB element of the periodic table, the bridging material comprising an oil-soluble material formulated and configured to dissolve out of the filtercake to form channels in the filtercake. Related methods and wellbore fluids are disclosed.