Unconventional resources like shale gas has been the focus of intense research and
development for two decades. Apart from intrinsic geologic factors that control the gas shale …

Geomechanical properties are of high relevance in the design and optimization of hydraulic
fracturing required for production from shale gas reservoirs. Experimental techniques that …

In carbon storage activities, and in shale oil and gas extraction (SOGE) with carbon dioxide
(CO2) as stimulation fluid, CO2 comes into contact with shale rock and its pore fluid. As a …

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 …

A new poroelastic damage model is developed in the paper to describe the macroscopic
failure of rock materials due to microcrack nucleation and propagation based on a multiscale …

Shear-sliding mode fracture, ie, mode II fracture, is a very common rupture mode of layered
rocks. To achieve a better understanding of the anisotropy in the real mode II fracture, which …

Fracture-initiation pressure (FIP) is closely related to lost circulation and hydraulic fracturing.
However, conventional prediction models often treat formation rock as an isotropic medium …

Shales with a laminated structure typically exhibit inherent anisotropy and strong brittleness,
resulting in complex failure patterns and fracture evolution during hydraulic fracturing. To …

The inherent anisotropy is the most important structural feature of shale. Most research on
the mechanical behavior of shale has focused on its anisotropic strength, deformation and …

Geomaterials containing fissures such as some sedimentary rocks often exhibit a bimodal
pore size distribution, and they are also inherently anisotropic due to the distinct bedding …