ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,825, issued on March 3, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"System and method for reservoired oil production based on calculated composition of natural tracers" was invented by Constantin Sandu (Houston) and Ibrahim Atwah (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for production prediction using tracers in an oilfield system is disclosed. The method involves reading, by a computer processor, a set of subsurface field properties characterizing a field system, generating, by the computer processor, a base field model, creating, by the computer processor, a plurality of static models o...