ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,677, issued on Sept. 9, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Multiple expandable metal packers with hydrolock prevention" was invented by Samuel Roselier (Bruz, France), Romain Neveu (Bruz, France), Robin Laupie (Bruz, France), Nicolas Saltel (Rio de Janeiro, Brazil) and Dinesh Patel (Humble, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technique facilitates improved actuation and use of packers disposed along a well string and placed in a borehole, e.g. a wellbore. A plurality of packers may be disposed along a base pipe, e.g. a production tubing. Each packer has an expandable sleeve which may be expanded i...