Drilling is one of the most expensive processes in the oil and gas exploration and
exploitation processes which is commonly performed with polycrystalline diamond compact …

This paper studies the integrated effect of double cutters on cutting rock. The rock being cut
is subjected to hydrostatic pressure. Double cutters paralleled to each other and separated …

Abstract Special-shaped Polycrystalline Diamond Compact (PDC) cutters show the
superiority for improving rate of penetration (ROP) in hard abrasive formation drilling …

Water can greatly influence the mechanical properties and dynamic fracture of underground
rock mass. However, the dynamic fragmentation and chip formation of water-soaked rock in …

The mechanical behavior of layered rock is seriously influenced by the bedding planes that
have lower tensile strength and shear strength than rock matrix. We conducted experimental …

Polycrystalline diamond compact (PDC) cutter is the key component of PDC bits, whose rock-
breaking characteristics are particularly crucial for the bit performance. Based on the …

To investigate the rock fracture, penetration force, and chip shape during rock breaking with
a conical pick, a 3D numerical model was developed by inserting cohesive elements into …

Optimum fragmentation of rocks during blasting is pivotal for the productivity of mining and
civil engineering systems. Extensive studies on the ubiquitous fragmentation phenomena in …

Abstract The PDC (Polycrystalline Diamond Compact) bits are the most widely used bits in
oil drilling engineering, in order to further improve their longevity and ROP (Rate of …

Mechanical cutting provides one of the most flexible and environmentally friendly excavation
methods. It has attracted numerous efforts to model the rock chip** and fragmentation …