ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,951, issued on Sept. 30, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Annulus monitoring autonomous network" was invented by Ammal Anazi (Dammam, Saudi Arabia), Mohannad Gizany (Dammam, Saudi Arabia), Abdulaziz Murad (Jeddah, Saudi Arabia) and Saleh Alhumaid (Riyadh, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for autonomously detecting and categorizing well integrity issues in hydrocarbon production wells (e.g., gas and oil wells), water injection wells, and water disposal wells. A method involves obtaining a wellhead pressure and a tubing-casing annulus (TCA) pressure of a wellbore; calculati...