US 12,270,254 B2
Drill bits with variable cutter alignment
Matthew Mumma, Oklahoma City, OK (US); Ryan Matthews, Powderly, TX (US); Brandon Sheldon, Houston, TX (US); and Eric Walter Sonne, Colorado City, TX (US)
Assigned to Taurex Drill Bits, LLC, Norman, OK (US)
Filed by Taurex Drill Bits, LLC, Norman, OK (US)
Filed on Oct. 18, 2021, as Appl. No. 17/503,687.
Claims priority of provisional application 63/093,377, filed on Oct. 19, 2020.
Prior Publication US 2022/0120140 A1, Apr. 21, 2022
Int. Cl. E21B 10/43 (2006.01); E21B 10/55 (2006.01); E21B 10/60 (2006.01)
CPC E21B 10/43 (2013.01) [E21B 10/55 (2013.01); E21B 10/602 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A drill bit, comprising:
a bit body providing a blade disposed about a centerline of the bit body;
first and second primary cutters mounted at a leading face of the blade such that a cutting face of each primary cutter aligns with the leading face; and
two or more offset cutters mounted to the blade and arranged laterally adjacent to respective primary cutters of the first and second primary cutters, the two or more offset cutters being angularly offset from the first and second primary cutters such that a cutting face of the two or more offset cutters is misaligned with the cutting face of the first and second primary cutters, and such that the leading face of the blade undulates at a location of each offset cutter,
wherein each offset cutter has a planar cutting face that is arranged perpendicular to a cutting rotation path of the corresponding offset cutter as the bit body rotates, and
wherein a discrete channel is defined in the leading face at the location of each offset cutter, and the cutting face of each offset cutter resides within the corresponding discrete channel.