ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,842, issued on Aug. 5, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).
"Expandable polymer grout for sealing subterranean formations" was invented by Peter James Clark (The Woodlands, Texas), Michael James Fuller (Cypress, Texas), Douglas Cory Arceneaux (Katy, Texas), William Dale Wood (Montgomery, Texas) and John Bryan Trenery Jr. (Sugar Land, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An open hole formation surface within a wellbore of a well system is sealed with a polymer seal. A deployment system is inserted into the wellbore to the location of the open hole formation surface. The open hole formation surface may be located at ...