Strength anisotropy is one of the most distinct features of anisotropic rocks, and it also
normally reveals strong anisotropy in Brazilian test Strength (“BtS”). Theoretical research on …

The failure characteristics and the various induced fractures of shale are investigated in this
paper. Brazilian tests were conducted for different inclination angles of the weak planes of …

Multi-stage fracturing of horizontal wells to recover shale gas has attracted substantial
renewed interest in the physical and mechanical characteristics of shale. The mechanical …

This paper investigates variation in the failure behavior of shale in a ScCO 2-immersion
environment with different adsorption periods and layering orientations. Eight types of …

Shale gas is an important supplement to the supply of natural gas resources and plays an
important role on the world's energy stage. The efficient implementation of hydraulic …

To investigate the mechanism of super-critical CO 2 saturation on the tensile properties of
shale, shale specimens were saturated with Sc-CO 2, and inert gas (Ar) was employed as …

The anisotropic direct tensile behaviour of laminated and transversely isotropic Midgley Grit
sandstone (MGS) was investigated in this paper using a particle-based discrete element …

Fracture pressure is one of the most important foundations of drilling engineering, and the
anisotropy of tensile strength is also a distinct feature of layered formations, but the …

Strength anisotropy is one of the most distinct features of layered formations, but anisotropic
tensile strength has received scarce attention in the prediction of fracture pressure …

A large amount of slates is distributed along Kangding No. 2 tunnel of Sichuan–Tibet
Railway (China). The bedding of the Kangding slate is rich, showing apparent anisotropy of …