US Patent Issued to Aera Energy on April 22 for "Method for depth identification of leaks in a casing string" (California Inventor)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,567, issued on April 22, was assigned to Aera Energy LLC (Bakersfield, Calif.).

"Method for depth identification of leaks in a casing string" was invented by Rickey Sullivan (Bakersfield, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting leaks in a casing involves running a fiber-optic distributed temperature sensing cable into a well casing to obtain at least one trace in real time. The method includes thermally conditioning the well by inert gas injection and utilizing a trace to calculate moving average temperature gradients at predetermined intervals, determine the mean and standard deviation of these gradients, and est...