US Patent Issued to SAUDI ARABIAN OIL on Sept. 16 for "Systems and methods to determine permeability of rock under anisotropic stress" (American, Algerian Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,563, issued on Sept. 16, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Systems and methods to determine permeability of rock under anisotropic stress" was invented by Hui-Hai Liu (Katy, Texas), Jilin Zhang (Houston), Mohammed Boudjatit (El Kennar, Algeria) and Gary Eppler (Baytown, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are disclosed. The methods may include determining a first sequence of permeabilities by subjecting a rock sample to a first sequence of confining stress, axial stress, pore pressure (CSASPP) triplets and determining a first rock parameter using the first sequence of permeabili...