Table 6.
The fracture parameters of coal rock sample after 6 MPa hydraulic fracturing.
Fracture number | Fracture type | Fracture length (mm) | Fracture width (mm) | Dip angle of Fracture Tip (rad) | Azimuth of Fracture Tip (rad) |
---|---|---|---|---|---|
1 | Transverse | 15 | 0.16 | 0.43 | 0.09 |
2 | Longitudinal | 15 | 0.09 | 1.53 | 0.09 |
3 | New transverse | 13 | 0.15 | 1.54 | 0.88 |