Laboratory Study on the Effect of Fluid Pressurization Rate on Fracture Instability

Figure 5

Friction coefficient and permeability evolution. (a, b) The friction coefficient and fracture surface permeability in SW-1 and SW-2 tests as functions of slip displacement, respectively. (c, d) The friction coefficient and fracture surface permeability as a function of pore pressure in SW-1 and SW-2 tests, respectively.

(a) SW-1

(b) SW-2

(c) SW-1

(d) SW-2