Stability of Natural Fractures under Disturbance of Hydraulic Fractures in Shale Reservoirs

Figure 11

Effects of the frac fluid viscosity on the fracture propagation path.

(a) Frac fluid viscosity of 3 mPa·s

(b) Frac fluid viscosity 10 mPa·s

(c) Frac fluid viscosity 25 mPa·s

(d) Frac fluid viscosity 50 mPa·s