Fengshou Zhang

Transient Propagation of a Toughness-Dominated Plane-Strain Hydraulic Fracture in a Diffusive Porous Medium

Abstract We develop a transient framework for modeling toughness-dominated plane-strain hydraulic fracture propagation in permeable formations that incorporates fully two-dimensional (2D) pore pressure diffusion. The formulation employs an impulse response approach to evaluate th...

Effect of CO2–Water–Coal Coupling on the Mechanical Stability of Deep Coal Seams

Abstract CO2 geological storage in deep coal seams provides dual benefits of carbon storage and enhanced coalbed methane recovery. However, the CO2–water–coal interactions during storage significantly deteriorate the coal’s mechanical properties through swelling and softening mec...