Research Article
Evaluations of Fracture Injection Pressure and Fracture Mouth Width during Separate-Layer Fracturing with Temporary Plugging
Table 1
Reservoir and operation data [
39].
| | PARAMETER | Layer | Inter-layer |
| | Formation interval depth, H (m) | 2700-2800 | | Thickness, (m) | 20 | 10 | | Overburden total stress, (MPa) | 61 | | -0.5-1.58×10−2H | -2.5-1.58×10−2H | | -0.6-1.70×10−2H | -2.8-1.70×10−2H | | Initial pore pressure, , (MPa) | 1.00×10−2H | | Initial porosity, (dimensionless) | 0.142 | | Effective permeability, k (mD) | 0.5 | | Initial void ratio (=/(1- )) (dimensionless) | 0.165 | | Poisson’s ratio, (dimensionless) | 0.27 | 0.31 | | Young’s modulus, (GPa) | 20 | 38 | | Grain bulk modulus (GPa) | 16 | 33 | | Fluid bulk modulus (MPa) | 224 | | Formation density (kg/m3) | 2263 | | Leak-off coefficient (m3/MPa/s) | 5.8×10−7 | | Injection rate, (m3/min) | 4 | / | | Fluid viscosity, (cp) | 100 |
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