Based on the review of a wide range of literature, this paper finds that:(1) the average
specific surface energy of various single crystals is only 0.8 J/m 2.(2) The average specific …

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 …

Prediction of the rockburst proneness of rock in the field is an important problem in rockburst
research. In this paper, the analytical relationship between the strength ratio (the ratio of the …

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

The existence of confining pressure is an important factor that can't be ignored in rock cutting
process. Rocks show high strength and strong plasticity under confining pressure condition …

To improve the efficiency of tunnel boring machines (TBMs) in hard rock environment, the
technology of pre-grooving-assisted disc cutters for rock breaking was studied. Firstly …

With the increasing number of long tunnelling and urban subway constructions, mixed-face
ground conditions are frequently encountered. Rock fragmentation mechanism under disc …

Mechanical rock breaking in different forms have found wide applications in the mining and
civil engineering industry such as drilling, tunnelling and grinding. A detailed understanding …

Field drilling can be a continuous, fast, and reliable technology to predict the cohesion,
internal friction angle, and unconfined compressive strength (UCS) of rock in petroleum …

When drilling with high ground stress in petroleum drilling engineering, understanding the
ductile–brittle failure transition of rocks is crucial for improving drilling efficiency. Herein, a …