US Patent Issued to Saudi Arabian Oil on March 25 for "Methods to use water shutoff material composition comprising alkaline nanosilica dispersion and sodium bicarbonate in downhole conditions" (Saudi Arabia Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,516, issued on March 25, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Methods to use water shutoff material composition comprising alkaline nanosilica dispersion and sodium bicarbonate in downhole conditions" was invented by Rajendra Arunkumar Kalgaonkar (Dhahran, Saudi Arabia) and Vikrant Wagle (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of reducing water production in a wellbore may include introducing an alkaline nanosilica dispersion to the wellbore such that it contacts a water producing zone of the wellbore, introducing a sodium bicarbonate activator to the wellbore such that it contacts t...