All issues Volume 73 (2018) Oil & Gas Science and Technology - Rev. IFP Energies nouvelles, 73 (2018) 72 Full HTMLThe fracture parameters of coal rock sample after 3 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 | 0.14 | 0. 43 | 0.09 |
| 2 | Longitudinal | 13 | 0.07 | 1. 28 | 0.09 |
| 3 | New Transverse | 7 | 0.12 | 1.16 | 0.61 |
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