Characterization of polycrystalline diamond compact with non-planar surfaces for drilling hard-formation

Utilizing domestic hinge-type cubic press,the non-planar face polycrystalline diamond compact(namely,the ridge cutter) was synthesized under high temperature and high pressure(HPHT) processes. The laboratory testing results show that compared with the planar cutter,the ridge cutter performs wear resistance increase of 40%,impact resistance increase of 30.8%,and cutting force reduce of 36.8%. Meanwhile,ridge cutter with the optimal caster angle could improve the drilling footage and drilling rate. The drilling data indicate that the compared with the planar cutter,the drilling footage and drilling rate of ridge cutter are increased by 78.1% and 38.9%,respectively.