ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,197, issued on June 17, was assigned to ConocoPhillips Co. (Houston).
"Systems and methods for determining surfactant impact on reservoir wettability" was invented by Hesham F. El-Sobky (Houston), Ronald J. M. Bonnie (Houston) and Tianmin Jiang (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations described and claimed herein provide systems and methods for determining surfactant impact on reservoir wettability. In one implementation, a nuclear magnetic resonance T1 measurement of a sample is obtained before surfactant imbibition is applied to the sample, and a second nuclear magnetic T2 measurement of the sample is made after forc...