US Patent Issued to SAUDI ARABIAN OIL, KING FAHD UNIVERSITY OF PETROLEUM & MINERALS on Oct. 14 for "Self-destructive barite filter cake in water-based and oil-based drilling fluids" (Saudi Arabia Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,925, issued on Oct. 14, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia) and KING FAHD UNIVERSITY OF PETROLEUM & MINERALS (Dhahran, Saudi Arabia).

"Self-destructive barite filter cake in water-based and oil-based drilling fluids" was invented by Ayman R. Al-Nakhli (Dhahran, Saudi Arabia), Mohamed Ahmed Nasr El Din Mahmoud (Dhahran, Saudi Arabia) and Zeeshan Tariq (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Drilling fluid compositions may include a weighting agent, a nitrite-containing compound, and an ammonium-containing compound, where the nitrite-containing compound and the ammonium-containing compound ma...