ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,623, issued on Sept. 15, was assigned to Halliburton Energy Services Inc. (Houston).
"Core-shell particles for subterranean operations" was invented by Jay Deville (Houston), Hui Zhou (Houston), Preston Andrew May (Houston), William W. Shumway (Houston) and Emily Hart (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of servicing a wellbore penetrating a subterranean formation, the method comprising: preparing a wellbore servicing composition comprising: (a) core-shell particles comprising a core and a shell, wherein the shell wholly or partially surrounds the core, and wherein: (i) the core of each of the core-shell particles compri...