ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,641, issued on June 17, was assigned to Halliburton Energy Services Inc. (Houston).

"Pulsed-power drilling system with integrated power and communication coiled tubing conveyance" was invented by Nagaraja K. Pai (Houston), Robert Charles De Long (Tulsa, Okla.), Wei Zhang (Houston) and Lucas Samuel Batista Santos (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed embodiments relate to a pulsed-power drilling system, in which a pulsed-power drill is conveyed downhole and operated via coiled tubing. The coiled tubing may be configured to simultaneously transmit power and drilling fluid downhole. For example, the coiled tubing may include...