US Patent Issued to SCHLUMBERGER TECHNOLOGY on Oct. 7 for "Dogleg severity estimation via collar magnetic field measurements" (French Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,620, issued on Oct. 7, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Dogleg severity estimation via collar magnetic field measurements" was invented by Makito Katayama (Clamart, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for estimating dogleg severity includes rotating the downhole tool in a wellbore. The downhole tool includes a roll stabilized sensor housing deployed in a rotating collar. The collar includes at least first and second magnets deployed thereon. Cross-axial magnetic field measurements are made using a magnetic field sensor deployed in the sensor housing while the collar rotates. A distortion i...