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:
Nov. 04, 2025
Filed:
Dec. 14, 2022
Schlumberger Technology Corporation, Sugar Land, TX (US);
Fanping Bu, Sugar Land, TX (US);
Vassilis Varveropoulos, Katy, TX (US);
Ken-Vidar Ditlefsen, Sugar Land, TX (US);
Hisayo Tauchi, Sugar Land, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A head wireline tension control system may determine a head tension based on a speed of the tool driving equipment and a cable speed of the cable as a function of an operation of the winch. A head tension regulation error may be determined based on a comparison of the head tension and a target head tension, and the head tension control system may operate the winch or the tool driving equipment according to an operating zone that includes the head tension regulation error. The operating zone may be defined by a first range of values for a difference between the speed of the tool driving equipment and the cable speed, and a first range of values for a difference between the head tension and the target head tension.