ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,901, issued on May 27, was assigned to Welltec Manufacturing Center Completions ApS (Esbjerg N, Denmark).
"Downhole expandable tubular" was invented by Ricardo Reves Vasques (Zug, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole expandable tubular for expansion in a well downhole to abut against an inner face of a well tubular metal structure or borehole, includes at least first and second circumferential edges on the outer face, forming a circumferential groove, a sealing unit arranged in the circumferential groove. The sealing unit includes a post-transition metal material, the sealing unit has an annular sealing element and a...