Research Article
A Crack Propagation Control Study of Directional Hydraulic Fracturing Based on Hydraulic Slotting and a Nonuniform Pore Pressure Field
Table 2
Loading cases considered in the numerical analysis.
| Load cases | Maximum horizontal stress (MPa) | Minimum horizontal stress (MPa) | Horizontal stress difference coefficient
| Slotting deviation angle (°) |
| 1# | 4.5 | 3 | 0.5 | 15° | 2# | 5.25 | 3 | 0.75 | 15° | 3# | 6 | 3 | 1 | 15° | 4# | 6.75 | 3 | 1.25 | 15° | 5# | 4.5 | 3 | 0.5 | 30° | 6# | 5.25 | 3 | 0.75 | 30° | 7# | 6 | 3 | 1 | 30° | 8# | 6.75 | 3 | 1.25 | 30° | 9# | 4.5 | 3 | 0.5 | 45° | 10# | 5.25 | 3 | 0.75 | 45° | 11# | 6 | 3 | 1 | 45° | 12# | 6.75 | 3 | 1.25 | 45° | 13# | 4.5 | 3 | 0.5 | 60° | 14# | 5.25 | 3 | 0.75 | 60° | 15# | 6 | 3 | 1 | 60° | 16# | 6.75 | 3 | 1.25 | 60° | 17# | 4.5 | 3 | 0.5 | 75° | 18# | 5.25 | 3 | 0.75 | 75° | 19# | 6 | 3 | 1 | 75° | 20# | 6.75 | 3 | 1.25 | 75° | 21# | 4.5 | 3 | 0.5 | 90° | 22# | 5.25 | 3 | 0.75 | 90° | 23# | 6 | 3 | 1 | 90° | 24# | 6.75 | 3 | 1.25 | 90° |
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