Table 1 In situ stress measurement results, σ1, σ2, and σ3 represent the major, medium and minor primary stress, respectively.
Measurement locations | Point | Stress | Value (MPa) | Orientation (°) | Dipping (°) |
|---|---|---|---|---|---|
8250 depot (− 800.3 m) | 1 | σ1 | 33.00 | 259.30 | 2.01 |
σ2 | 22.09 | − 18.57 | − 75.60 | ||
σ3 | 19.60 | 169.81 | − 14.25 | ||
2 | σ1 | 33.33 | 264.57 | 0.86 | |
σ2 | 22.19 | − 1.11 | 78.76 | ||
σ3 | 21.47 | 174.40 | 11.21 | ||
#10 well depot (− 706.2 m) | 1 | σ1 | 31.73 | 255.14 | 2.10 |
σ2 | 20.48 | − 8.76 | 70.92 | ||
σ3 | 19.83 | 164.42 | 18.95 | ||
2 | σ1 | 31.33 | 256.10 | 0.53 | |
σ2 | 21.22 | − 12.39 | 69.72 | ||
σ3 | 20.55 | 165.99 | 20.27 | ||
3 | σ1 | 31.30 | 266.90 | 3.49 | |
σ2 | 21.04 | 4.26 | 64.54 | ||
σ3 | 20.05 | 175.26 | 25.18 |
