US Patent Issued to Schlumberger Technology on Nov. 18 for "At-bit depth of cut and rate of penetration measurements" (British, Norwegian Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,183, issued on Nov. 18, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"At-bit depth of cut and rate of penetration measurements" was invented by Harry Cook (Cambridge, Great Britain) and Kjell Haugvaldstad (Vanvikan, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drill bit includes cutting elements and a displacement sensor deployed on a drill bit body. The displacement sensor includes an engagement piston disposed to translate axially in a sensor housing. The engagement piston includes an inner plunger and an opposing outer engagement element configured to engage a subterranean formation and is biased outward from the ...