US Patent Issued to Saudi Arabian Oil on Feb. 24 for "Determining initial pore pressure" (Saudi Arabia, American Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,521, issued on Feb. 24, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Determining initial pore pressure" was invented by Hui-Hai Liu (Houston), Jilin Jay Zhang (Houston) and Rabah Mesdour (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes performing, on a core sample obtained from a reservoir and positioned in a permeability measurement assembly that includes a flow inlet, a permeability operation by flowing a test fluid from the flow inlet and into the core sample and changing an effective stress acting on the core sample. The method also includes determining a natural logarithm of permeability...