ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,040, issued on Feb. 17, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Well correlation using global and local machine learning models" was invented by Mandar Shrikant Kulkarni (Yerawada, India), Purnaprajna Raghavendra Mangsuli (Pune, India), Hiren Maniar (Houston) and Aria Abubakar (Sugar Land, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for correlating well logs includes receiving a well log as input to a first machine learning model that is configured to predict first markers in the well log based at least in part on a global factor of the well log, receiving the well log as input to a second machine learni...