US Patent Issued to SAUDI ARABIAN OIL, KING FAHD UNIVERSITY OF PETROLEUM & MINERALS on March 31 for "Viscoelastic surfactants for acid diversion in downhole operations" (Saudi Arabia Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,522, issued on March 31, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia) and KING FAHD UNIVERSITY OF PETROLEUM & MINERALS (Dhahran, Saudi Arabia).

"Viscoelastic surfactants for acid diversion in downhole operations" was invented by Rajendra Arunkumar Kalgaonkar (Dhahran, Saudi Arabia), Mohammed Abdullah Bataweel (Dhahran, Saudi Arabia), Nour Othman Baqader (Khobar, Saudi Arabia), Nisar Ullah (Dhahran, Saudi Arabia) and Muhammad Mansha (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling a permeability zone in a reservoir includes introducing a diverter agent comprising a morpholinium based ...