| Parameters |
Base Model Value |
Range |
| Model |
Dual Porosity |
- |
| Shape Factor Formulationc |
Gilman-Kazemi |
- |
| Matrix-Fracture Transfer
Model |
Psuedo-capillary Pressure with
Correction |
- |
| Model Geometry |
2D-Cartesian |
- |
| Grid Size |
100ft ×100ft |
- |
| Reservoir Area |
40 acres |
40, 80, 160 acres |
| Thickness |
10ft |
5-15 ft |
| Matrix Porosity |
0.50% |
- |
| Fracture Porosity |
2% |
1-5% |
| Matrix Water Saturation |
0.50% |
- |
| Initial Fracture Water
Saturation |
100% |
70-100% |
| Matrix Permeability |
0.01 md |
- |
| Fracture Permeability |
10 md |
5-20 md |
| Fracture Spacing |
0.2 ft |
0.1- 1 ft |
| Initial Pressure |
600 psia |
300-600 psia |
| Temperature |
113 °F |
- |
| Langmuir Pressure (PL) |
675.6 psia |
|
| Langmuir Volume (VL) |
475 SCF/ton |
|
| Coal Sorption Time |
50 days |
10-300 |
| Critical Desorption
Pressure |
300 psia |
300-600 psia |
| Rock Density |
89.63 lb/ft3 |
- |
| Skin Factor |
0 |
-4 to +4 |
| Bottom Hole Pressure
(Constant) |
50 psia |
50, 75, 100 psia |
|
