US Patent Issued to Halliburton Energy Services on Sept. 29 for "Active torsional isolator and damper" (Texas Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,642, issued on Sept. 29, was assigned to Halliburton Energy Services Inc. (Houston).

"Active torsional isolator and damper" was invented by Van Jordan Brackin (Conroe, Texas), Andrew D. Lake (Conroe, Texas) and Bradley David Dunbar (The Woodlands, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An active system is provided that changes the mechanical stiffness of a BHA during drilling to prevent/reduce damage to a BHA due to vibrations. The active system uses a combination of mechanical and electronic systems to change the physical characteristics of a BHA that govern the natural frequencies thereof. The active system can change the mechanical...