ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,998, issued on Jan. 27, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Real-time ranging while drilling" was invented by Ross Lowdon (Stonehouse, Great Britain) and Mahmoud Elgizawy (Bucharest, Romania).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for drilling a subterranean wellbore includes rotating a bottom hole assembly (BHA) in the subterranean wellbore to drill the wellbore, the BHA including a drill collar, a drill bit, and a triaxial accelerometer set and a triaxial magnetometer set in or coupled to the drill collar. The triaxial accelerometer set and the triaxial magnetometer set make a plurality of sets of sy...