Quantitative characterization of irregular micro-fracture network and its effect on the permeability of porous media

LI Tao,LI Qian,HU Yong,PENG Xian,FENG Xi,ZHU Zhanmei,ZHAO Zihan

Table 2 Construction parameters of the fracture-pore models and simulation parameters of MRT-LBM.

Parameter Value Parameter Value Fracture aperture 2, 4 μm Temperature 333 K Fracture length 40 μm Inlet pressure 20 MPa Fracture porosity 5% Inlet density 983.1 kg/m3 Grid number 1000×800 Outlet density 980 kg/m3 Grid step 0.1 μm Dynamic viscosity 4.699×10-4 Pa·s Matrix porosity 5% Pressure gradient 0.1 MPa/m