ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,272, issued on Jan. 20, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Identifying lost-circulation events in downhole drilling systems" was invented by Valerian Guillot (Montpellier, France), Alexey Ruzhnikov (Al-Khobar, Saudi Arabia), Mauricio Corona (Al-Khobar, Saudi Arabia) and Khalid Abdelsamed M. Talha (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drilling fluid management system may measure drilling parameters for a downhole drilling system, the drilling parameters including standpipe pressure. A drilling fluid management system may determine, based on the drilling parameters, a mechanical specif...