Research on kinematics analysis of spherical single-cone PDC compound bit and rock breaking simulation verificationChunyan Kong, Rongjun Zhu, Derong Zhang and Shuangshuang LiOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 76 (2021) 52DOI: https://doi.org/10.2516/ogst/2021034