Shear-induced Permeability Evolution of Sandstone Fractures

Figure 4

Shear-induced permeability evolution of sandstone fractures: (a-1) shear response and permeability evolution of #36 Grit fracture; (a-2) shear response and permeability evolution of #36 Grit fracture during stable shear stage; (b-1) shear response and permeability evolution of #80 Grit fracture; (b-2) shear response and permeability evolution of #80 Grit fracture during stable shear stage; (c-1) shear response and permeability evolution of #120 Grit fracture; (c-2) shear response and permeability evolution of #120 Grit fracture during stable shear stage.