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

Table 1

Basic mechanical parameters of the rock.

Rock sample	Elastic modulus (GPa)	Poisson’s ratio	Compressive strength (MPa)	Tensile strength (MPa)	Shear strength (MPa)	Friction angle (°)
Beibei limestone	31.2	0.171	105.951	6.578	17.72	43.62