ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,538, issued on March 31, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Method and apparatus for stress testing of geological formations with a high permeability" was invented by Adriaan Gerard Gisolf (Bucharest, Romania), German David Garcia (Sugar Land, Texas), Francois-Xavier Dubost (Paris) and Emilie Peyret (Bucharest, Romania).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments presented provide for stress testing of downhole wireline formation testing equipment. Certain embodiments provide for stress testing of geological stratum which exhibit high permeability."

The patent was filed on Aug. 21, 2024, under Applica...