ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,218, issued on Aug. 19, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Additive manufacture of wellbore tubulars" was invented by Peter J. Boul (Houston) and Carl J. Thaemlitz (Cypress, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are systems and method for casing a wellbore of a hydrocarbon well. The casing including disposing a casing print head in a wellbore of a hydrocarbon well, and conducting a downhole casing operation including operating the casing print head to eject casing material to form a casing tubular in the wellbore, and operating the casing print head to eject casing liner material into an annular r...