US Patent Issued to SAUDI ARABIAN OIL on April 15 for "Float shoe with anti-collapse feature for string cementation" (Saudi Arabia Inventor)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,175, issued on April 15, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Float shoe with anti-collapse feature for string cementation" was invented by Dautmammet Rejepov (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system performs inner string cement operations in a wellbore. The system includes a stab-in stinger connected to a distal end of a drill string and a stab-in float shoe connected to a distal end of a casing. The stab-in float shoe includes a first check valve and a plug type rupture disc. The first check valve includes instructions configured to prevent a reverse flow of cement mixture. The pl...