ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,036, issued on June 30, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Systems and methods for enhancing carbon dioxide injectivity into a subterranean formation" was invented by Hui-Hai Liu (Katy, Texas) and Yanhui Han (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes identifying a wellbore that extends from a terranean surface and to a subterranean formation that includes a saline aquifer; injecting, through the wellbore, a predetermined volume of freshwater into a portion of the saline aquifer adjacent the wellbore to create a freshwater ring about the wellbore in the subterranean formation; and subsequent...