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:
Aug. 19, 2025
Filed:
Dec. 03, 2020
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Balakrishnan Panamarathupalayam, Houston, TX (US);
Linus Sebelin, Houston, TX (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/487 (2006.01); C09K 8/575 (2006.01); C09K 8/588 (2006.01); C09K 8/88 (2006.01);
U.S. Cl.
CPC ...
C09K 8/487 (2013.01); C09K 8/5751 (2013.01); C09K 8/588 (2013.01); C09K 8/88 (2013.01);
Abstract
Fluid loss control agents for use in a water-based wellbore fluid. The fluid loss control agents generally include non-crosslinked copolymers of non-carboxylated monomers. Water-based wellbore fluids containing the above fluid loss control agents and methods of servicing a wellbore in a subterranean formation by placing the water-based wellbore fluids in the wellbore.