ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,284, issued on July 28, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Determining zeta potential of a core sample" was invented by Ali Abdullah Al-Taq (Qatif, Saudi Arabia) and Abdullah Abbas Alrustum (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and a method for determining a zeta potential of a core plug. The system has a first fluid and a second fluid that is less conductive than and immiscible with the first fluid. A core holder holds the core plug. An upstream reservoir, an upstream trap, and an upstream external electrode cell are fluidly coupled to each other and one end of the core holder. A...