ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,705, issued on June 24, was assigned to Halliburton Energy Services Inc. (Houston).
"Expandable metal displacement plug" was invented by Luke William Holderman (Singapore) and Brandon Thomas Least (Carrollton, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided, in at least one aspect, is a displacement plug for us in a wellbore tubular, a method for entering a well system, and a related well system. The displacement plug, in one aspect, includes a plug body for landing in a wellbore tubular, wherein at least a portion of the plug body comprises a metal configured to expand in response to hydrolysis to seal against the wellbore tubular. Th...