DEM-CFD Modeling of Proppant Pillar Deformation and Stability during the Fracturing Fluid Flowback

Figure 18

Evolution of the proppant pillar profile for different fluid viscosities: (a) 0.001 Pa·s, (b) 0.01 Pa·s, and (c) 0.02 Pa·s.

(a)

(b)

(c)