ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,361, issued on Sept. 9, was assigned to Energy Solutions (US) LLC (The Woodlands, Texas).
"Synergistic combination of surfactants with friction reducers" was invented by Celeste Odier (Princeton, N.J.), Aymerick Le Bris (Princeton, N.J.) and Mikel Morvan (Pessac, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surfactant package may include an alpha olefin sulfonate primary surfactant; a betaine or sultaine co-surfactant; water; and optionally one or more solvents and/or co-solvents. A well treatment fluid may include an aqueous fluid, the surfactant package, and a friction reducer. A method of treating a portion of a subterranean formation...