ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,122, issued on July 1.
"Method and apparatus for fluid-activated shifting tool to actuate a plug assembly" was invented by Gregoire Max Jacob (Houston) and Sylvain Bedouet (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid-activated shifting tool includes a fluid entry valve, a piston, a fluid pressure chamber and a relief pressure chamber. The piston can shift and provide a force relative to the toolstring using the pressure differential created between the pressure within the fluid pressure chamber compared to the pressure within the relief pressure chamber. The fluid entry valve provides a temporary fluid entry barrier between the wel...