ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,755, issued on Dec. 2, was assigned to Landmark Graphics Corp. (Houston).

"Predicting a drill string packoff event" was invented by Robello Samuel (Cypress, Texas), Manish Kumar Mittal (Cypress, Texas), Rishi Adari (Houston) and Nanda Kumar Nookala (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure presents processes and methods for determining a packoff event at a location in a borehole undergoing a drilling operation. The packoff event can be represented by a packoff risk indicator (PRI) that presents, for example, a percentage risk of the packoff event occurring. The PRI can be utilized to initiate a remediation operation prior...