Innovative Conical Diamond Element Bit Significantly Reduces Drilling Cost of Laterals

Simulation and Experimental Study on Rock Disintegration Characteristics of Special-shaped PDC Cutters

“…Up to now, various new special-shaped PDC cutters such as conical, ridged PDC cutter have been developed [9]. Field drilling tests show that, special-shaped PDC cutters show certain advantages in hard rock drilling, for example, the conical PDC cutter developed by Smith Company can better concentrate the load on one point to break the rock, and its thicker diamond layer helps to improve the wear resistance and stability of the cutter [10,11]; the diamond layer of the ridged PDC cutter has a ridge-like structure, which shows higher hardness and toughness [12,13]; the multi-dimensional special-shaped PDC cutter developed by Baker Hughes Company (https://www.bakerhughes.com/) helps to improve the heat conversion efficiency, and maintain its aggressiveness for a long time [14,15].…”

Investigation of the Cross‐Cutting Polycrystalline Diamond Compact Bit Drilling Efficiency

“…It is a shared goal for researchers and manufacturers to achieve better synergy between cutter technology and bit structure. Numerous developments have appeared in the past few years [9][10][11][12]: Smith Company launched an axeridge-type bit that incorporates three rock damage mechanisms, including cutting, extrusion, and turning over, and, up to now, total drilled footage amounts to 60, 960 m. Shear Bits Company proposed a composite bit (PEXUS) that combines two structure units slicing and shearing to fracture and intrude the rock, increasing the penetration rate in hard strata. Baker Hughes Company proposed a cone-PDC hybrid bit that combines the advantages of cutter extrusion and PDC cutter shear failure.…”