ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,979, issued on Sept. 15, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Wellbore tripping advisor" was invented by Prasanna Amur Varadarajan (Clamart, France), Nicholas Abolins (Clamart, France), Ghislain Roguin (Perigny, France) and Maurice Ringer (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining a maximum tripping velocity for tripping a downhole tool string in a wellbore includes obtaining contextual data including wellbore data, tool string data, and drilling fluid data; computing downhole drilling fluid pressures at multiple tool string velocities and accelerations using the obtained contextua...