ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,296, issued on Feb. 17, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Downhole hydraulic mechanical lock" was invented by Leping Yu (Rosharon, Texas), Weichen Lai (Rosharon, Texas) and Akhil Bahl (Rosharon, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved downhole locking mechanism which may include a housing releasably connected to a downhole tool. The housing includes a first housing connected to a second housing. A sleeve disposed within the second housing. A coupling connecting the sleeve and a completion or another assembly. A piston disposed within the sleeve and retained in a locked position via a shear a...