ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,497, issued on Nov. 4, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Systems and methods for controlling head tension" was invented by Fanping Bu (Sugar Land, Texas), Vassilis Varveropoulos (Katy, Texas), Ken-Vidar Ditlefsen (Sugar Land, Texas) and Hisayo Tauchi (Sugar Land, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "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...