US Patent Issued to SAUDI ARABIAN OIL on July 15 for "Nanosilica-based compositions and related methods for providing water shut off to subterranean formations" (Saudi Arabia Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,112, issued on July 15, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Nanosilica-based compositions and related methods for providing water shut off to subterranean formations" was invented by Rajendra Arunkumar Kalgaonkar (Dhahran, Saudi Arabia) and Qasim Abdullah Sahu (Muntazah, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions and methods for providing water shut off within a water producing zone of a wellbore. The composition includes alkaline nanosilica particles and hydrolysable ester-based 3D engineered non-convex particles. The method includes dissolving the hydrolysable ester-based 3D engineered ...