Research Article
DEM-CFD Modeling of Proppant Pillar Deformation and Stability during the Fracturing Fluid Flowback
Table 1
Summary of microscale properties of rock.
| | Microparameters | Linear contacts | Apparent modulus (GPa) | 5.7 | | Normal stiffness (N/m) | | | Shear stiffness (N/m) | | | Parallel bonds | Apparent modulus (GPa) | 5.7 | | Normal stiffness (GPa/m) | | | Shear stiffness (GPa/m) | | | Normal bond strength (MPa) | 38 | | Shear bond strength (MPa) | 38 | | Radius multiplier | 1 | | Friction | 0.5 | | Density (kg/m3) | 2650 | | Particle radius (D/2) (mm) | 0.2 |
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