Research Article
Dynamic Brittle Instability Characteristics of 2000 m Deep Sandstone Influenced by Mineral Composition
Table 3
Mechanical parameters of deep sandstone reservoir.
| | Number | Compressive strength (MPa) | Residual strength（MPa） | Secant modulus (GPa) | Deformation modulus (GPa) | Tensile strength (MPa) |
| | S1-1 | 68.156 | 3.978 | 5.271 | 7.218 | | | S1-2 | 62.612 | 3.884 | 7.273 | 8.918 | | S1-3 | 70.296 | 4.496 | 6.870 | 9.077 | | S1-4 | 67.835 | 6.800 | 5.442 | 7.289 | | S1-5 | 68.266 | 5.205 | 7.273 | 9.057 | | S1-6 | 63.144 | 4.281 | 7.308 | 9.239 | | S1-7 | 80.103 | 4.460 | 8.711 | 10.480 | | S1-8 | 69.170 | 6.719 | 4.671 | 6.530 | | Sm-1 | | | | | 3.960 | | Sm-4 | 4.190 | | Sm-5 | 4.626 |
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