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:
Jun. 18, 2024
Filed:
Mar. 15, 2021
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Ramakrishna Madhireddy, Cypress, TX (US);
Wenshuai Hou, Richmond, TX (US);
Seetharam Kothuru, Cypress, TX (US);
Jian Wu, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/04 (2006.01); E21B 3/02 (2006.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
E21B 44/04 (2013.01); E21B 3/022 (2020.05); E21B 47/12 (2013.01);
Abstract
Methods, apparatus, and products for receiving measurements indicative of present value torque (TrqPv) currently being applied by a top drive to a drill string extending in a well that penetrates a subterranean formation, and releasing torque accumulated in the drill string by determining polarity of TrqPv and, in response to a manual or automatic trigger, causing the top drive to perform an unwinding operation in a direction opposite to the determined TrqPv polarity.