ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,585, issued on April 29, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Foamed gel system for water shut off in subterranean zones" was invented by Abeer Ateeq Alarawi (Al Khobar, Saudi Arabia), Ayman Mohammed Almohsin (Doha, Saudi Arabia) and Ahmad Busaleh (Saihat, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A foam composition includes a foam stabilizer, a foaming agent, a brine, and an inert gas. The foam stabilizer includes graphene. The foaming agent includes a viscoelastic surfactant. The inert gas is in the form of gas bubbles dispersed through a mixture of the foam stabilizer, the foaming agent, and the brine. ...