Research Article
A Comparative Study on Fracture Characteristics of the Red Sandstone under Water and Nitrogen Gas Fracturing
Table 6
The numerical and experimental values of rupture time and breakdown pressure (nitrogen gas fracturing).
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 |  | Specimen number | Method | Rupture time (s) | Breakdown pressure (MPa) |  | 
 |  | G1 | Numerical modeling | 140.0 | 4.664 |  | Experiment | 153.2 | 4.0 |  | G2 | Numerical modeling | 202.4 | 4.663 |  | Experiment | 226.5 | 4.7 |  | G3 | Numerical modeling | 374.6 | 4.662 |  | Experiment | 389.6 | 4.2 |  | 
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