DOWNHOLE CUTTING TOOLS HAVING HYBRID CUTTING STRUCTURES

摘要

A drill bit is disclosed, wherein the drill bit has a bit body with a longitudinal axis extending there through and a bit face. A plurality of blades extends from the bit body, wherein the plurality of blades has a blade profile including a nose. A plurality of cutting elements are disposed on the plurality of blades, including a plurality of non-planar cutting elements and a plurality of rotatable cutting elements, wherein the plurality of non-planar cutting elements are disposed in a non-planar cutting element region on at least one of the blades between the longitudinal axis and the nose

主权项

1. A drill bit, comprising:
a bit body having a longitudinal axis extending there through and a bit face; a plurality of blades extending from the bit body, wherein the plurality of blades has a blade profile comprising a nose; a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising:
a plurality of non-planar cutting elements; anda plurality of rotatable cutting elements;wherein the plurality of non-planar cutting elements are disposed in a non-planar cutting element region on at least one of the blades between the longitudinal axis and the nose.