US Patent Issued to Saudi Arabian Oil on April 29 for "Removing a stuck cap from a wellbore pressure control system" (Saudi Arabia Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,857, issued on April 29, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Removing a stuck cap from a wellbore pressure control system" was invented by Ahmed Jassim Al Abdulghani (Al Qatif, Saudi Arabia) and Bakur Othman Barnawi (Al Jubail, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tool and a method removing a stuck cap from a wellbore pressure control system. The method includes removing a quick union securing a cap to a Christmas tree cap adaptor of a wellbore pressure control system sealing a wellbore. A top gauge nut positioned in the cap is removed, and then a lifting key is installed in the cap. A hydraulic ja...