ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,611, issued on May 12, was assigned to Halliburton Energy Services Inc. (Houston).
"Expanding metal for plug and abandonment" was invented by Michael Linley Fripp (Carrollton, Texas) and Kenneth Craig Kaser (The Woodlands, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an expandable metal plug for use in a wellbore tubular. The expandable metal plug, in one aspect, includes a downhole member positionable proximate a plug and abandonment section in a wellbore tubular, wherein at least a portion of the downhole member comprises a metal configured to expand in response to hydrolysis to seal the wellbore tubular."
The patent was filed ...