Numerical Investigation on Grain-Scale Crack Evolution During Hydraulic Fracture Propagation in Sandstone: Insights from Gradient Pore Water Pressure
The incomplete mechanism of grain-scale hydraulic fracture (HF) propagation induced by gradient pore pressure limited the understanding of multi-scale HF propagation. This paper studied the grain-scale evolution of cracks under the disturbance of gradient pore water pressure. A sandstone meso-structure construction met...