Research Article
Effect of Natural Fractures on Stress Evolution of Unconventional Reservoirs Using a Finite Element Method and a Fracture Continuum Method
Table 1
Primary parameters of calculation.
| Parameter | Value | Unit |
| Young’s modulus | 35.5 | GPa | Poisson’s ratio | 0.2 | — | Biot coefficient | 1 | — | Initial porosity | 0.25 | — | Fluid compressibility | | MPa-1 | Fluid viscosity | 1.1 | MPa s | The principal stress in -direction | 50 | MPa | The principal stress in -direction | 54 | MPa | The principal stress in -direction | 57 | MPa | The initial pore pressure | 30 | MPa | The initial opening of natural fracture | 0.2 | mm | Average natural fracture spacing | 20 | m | Natural fracture dip | 80 | ° | Natural fracture strike | 40 | ° | Well radius | 0.0762 | m |
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