Numerical simulation of hydraulic fracture propagation in laminated shale reservoirs

ZHOU Tong,WANG Haibo,LI Fengxia,LI Yuanzhao,ZOU Yushi,ZHANG Chi

Table 3 Main input parameters of fracturing simulation.

Category Parameter value Shale matrix Density 2 600 kg/m3 Elastic modulus Eh=35 GPa and Ev=30 GPa Poisson's ratio υh=0.200 and υv=0.175 Permeability 0.001×10-3 μm2 Tensile strength 10 MPa Shear strength 30 MPa Internal friction angle 40° Bedding fracture Permeability 0.01×10-3 μm2 Tensile strength 1-10 MPa Shear strength 5-30 MPa Internal friction angle 5°-40° Natural fracture Permeability (0.01-10.00)×10-3 μm2 Tensile strength 0-5 MPa Shear strength 0-20 MPa Friction angle 0°-35° Stress state Maximum horizontal principal stress 56 MPa Minimum horizontal principal stress 49-56 MPa Vertical stress 58 MPa Pore pressure 40 MPa