ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,497, issued on March 31, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Untethered downhole tools" was invented by Rami Jabari (Houston), Thomas Hillman (Missouri City, Texas), Max Deffenbaugh (Fulshear, Texas) and Abubaker Saeed (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An untethered downhole tool includes a housing and a propeller. The housing is configured to house a logging tool and a power supply. The housing defines a longitudinal axis. The propeller includes a propeller blade. The propeller is coupled to the power supply for receiving power from the power supply to rotate. The propeller is positio...