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:
Mar. 24, 2026
Filed:
May. 22, 2025
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Brian Walther, Rosharon, TX (US);
Bo Chen, Rosharon, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); F16K 5/06 (2006.01);
U.S. Cl.
CPC ...
E21B 34/06 (2013.01); F16K 5/0647 (2013.01); E21B 2200/04 (2020.05);
Abstract
An isolation valve system includes a well string having an isolation valve including a rotatable ball for rotation about a fixed axis. The isolation valve has an extension mandrel and a connecting mandrel disposed above the rotatable ball. The isolation valve has a debris sleeve designed to push debris inward and upward in the extension mandrel accumulated above the rotatable ball when the ball is rotated to alleviate the friction force of the debris acting on the rotating ball.