ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,401, issued on June 17, was assigned to Baker Hughes Oilfield Operations LLC (Houston).
"System and method for downhole gamma ray inspection behind multistring completions" was invented by Feyzi Inanc (Houston), Joseph Olaiya (Houston), Allan Jones (Houston), Peng Yuan (Houston) and Toyli Anniyev (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for identifying a defect within a cement layer of a multi string wellbore includes deploying a gamma scanner into the multistring wellbore, the gamma scanner including at least one source and at least one detector, the at least one source emitting radiation into the multistring wellbore and th...