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

<div>Evolution of proppant pillar profile for different fiber-bonding strengths: (a) 3<i>E</i> + 3 Pa, (b) 3<i>E</i> + 6 Pa, and (c) 3<i>E</i> + 7 Pa.</div>

Geofluids

fig28

Figure 28

Figure 28: DEM-CFD Modeling of Proppant Pillar Deformation and Stability during the Fracturing Fluid Flowback 