ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,307, issued on Feb. 17, was assigned to Halliburton Energy Services Inc. (Houston).

"Expandable metal gas lift mandrel plug" was invented by Rutger Evers (Addison, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are aspects of a gas lift mandrel plug for use in a wellbore. In one embodiment, a gas lift mandrel plug may comprise an elongate member having a proximal end and a distal end, wherein the elongate member comprises a metal sealant configured to expand in response to hydrolysis, and wherein the elongate member is configured to seal a side pocket of a wellbore tubular in response to hydrolysis."

The patent was filed on J...