Lattice Numerical Simulations of Hydraulic Fracture Propagation and Their Geometry Evolution in Transversely Isotropic Formations

Accurate prediction of the fracture geometry before operation a hydraulic (HF) job is important for treatment design. Simplified planar models, which may be applicable to predict in homogeneous and continuous formations, fail case fractured reservoirs laminated formations such as shales. To gain better understanding propagation mechanism their vertical specific, series numerical models were run using XSite, lattice-based simulator. The results studied understand impact mechanical properties caprock injection parameters on HF propagation. tensile shear stimulated areas used determine ability propagate vertically horizontally. indicated that larger Young’s modulus increases area (SA) both horizontal directions, whereas it reduces aperture. Also, stress anisotropy strength natural interfaces inhibit with an inconsiderable effect propagation, collectively total SA. It was also observed increased fluid rate suppresses insignificant dimensionless defined this study characterize transition behavior between HFs.