Formation | Young’s modulus/Gpa | Poisson’s ratio | Brittleness index/% | Stress difference coefficient |
Long114 | 25.4 - 44.69 35.24 (55) | 0.11 - 0.27 0.17 (55) | 25.4 - 36.47 31.57 (21) | 0.04 - 0.16 0.10 (24) |
Long113 | 30.47 - 40.53 35.23 (46) | 0.13 - 0.22 0.17 (46) | 27.7 - 46.5 40.08 (23) | 0.06 - 0.14 0.11 (22) |
Long112 | 31.02 - 47.84 40.05 (60) | 0.12 - 0.24 0.17 (60) | 38.4 - 63.87 50.52 (28) | 0.04 - 0.16 0.13 (28) |
Long111 | 26.45 - 68.16 47.07 (62) | 0.12 - 0.26 0.18 (62) | 54.16 - 77.21 62.35 (30) | 0.06 - 0.15 0.12 (30) |