ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,692, issued on Feb. 18, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Composite gels for water shutoff in fractured reservoirs" was invented by Ayman Almohsin (Dhahran, Saudi Arabia), Bader Ghazi Alharbi (Dammam, Saudi Arabia) and Saad Almutari (Dammam, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composition includes a colloidal solution which includes a solvent, a plurality of nanoparticles dispersed in the solvent, an activator dissolved in the colloidal solution, and a plurality of gel particles suspended in the colloidal solution. A method for water shutoff includes injecting a composition into a fracture ...