Pore Pressure Disturbance Induced by Multistage Hydraulic Fracturing in Shale Gas: Modelling and Field Application

Figure 3

The pore pressure distributions at different times from the modelling ( mD,  mPa·s,  MPa, and  MPa): (a)  h, (b)  h, (c)  h, and (d)  h.

(a)

(b)

(c)

(d)