US Patent Issued to Saudi Arabian Oil on June 17 for "Wellhead back-pressure valve insertion" (Saudi Arabia Inventor)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,615, issued on June 17, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Wellhead back-pressure valve insertion" was invented by Hussain A. Al Sultan (AlHasa, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "An insertion tool assembly includes a lubricator and a tubular adapter. The tubular adapter includes a main body with a central bore therethrough. A top end of the adapter can be attached to the lubricator and the bottom end attached to a crown top of a wellhead. The tubular adapter also includes a kill fluid port disposed through a side-wall of the main body. The insertion tool assembly is configured such that, when th...