This paper presents the state of the art of the theory of rock damage and healing mechanics,
with a particular emphasis on the strategies available to relate the micro-scale of crystals …

The 2D displacement discontinuity method (DDM) has been widely used to characterize the
hydraulic fracture geometry and the induced in-situ stresses in the oil and gas industry …

Uneven proppant distribution is often encountered in hydraulic fracturing. Despite propped
and unpropped fractures exhibiting different closure behavior during shut-in and early …

This paper presents the theoretical formulation and numerical implementation of an
anisotropic damage model for materials with intrinsic transverse isotropy. Crack initiation …

Radial drilling-fracturing, the integration of radial drilling and hydraulic fracturing, is an
innovative approach to develop low permeability, thin target layer and naturally fractured …

Permeability enhancement through shear slip has been considered as standard treatment of
engineered geothermal systems (EGS). The process reactivates pre-existing fractures …

The shearing of pre-existing fractures plays an important role in the permeability
enhancement of shale reservoirs during hydraulic fracturing or refracturing treatments. The …

Shear slip caused by increased pore pressure due to injection has been explored as a
mechanism for permeability enhancement of unconventional hydrocarbon reservoirs. The …

Shale is a type of fracture-prone rock, but few regional faults are observed in shale strata.
Here, we investigate a regional detachment fault in the Middle-Upper Yangtze (MUY) to …

The brittle failure of Chengkou shale occurs throughout the exploration and development
processes of hydrocarbons. To investigate the failure mechanisms of Chengkou shale and …