US Patent Issued to SAUDI ARABIAN OIL on Aug. 26 for "Multiple fail-safe valves for safety of coiled tubing operations" (Saudi Arabia Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,602, issued on Aug. 26, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Multiple fail-safe valves for safety of coiled tubing operations" was invented by Surajit Haldar (Udhailiyah, Saudi Arabia), Sanjiv Kumar (Udhailiyah, Saudi Arabia) and Fehead M. Al-Subaie (Udhailiyah, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes coiled tubing configured to be lowered into a well using a reel. A bottom-hole assembly is connected to a downhole-most end of the coiled tubing. A fail-safe valve is installed within the coiled tubing at a location up-hole from the bottom-hole assembly. A fluid is configured to flow ...