Research Article
Hydraulic Fracturing Breakdown Pressure and Prediction of Maximum Horizontal In Situ Stress
Table 1
Base case parameters used in the analysis.
| Parameter | Symbol | Unit | Value |
| Minimum horizontal stress | | | 20 | Maximum horizontal stress | | | 30 | Borehole radius | | | 0.1 | Tensile strength | | | 20.82 | Fracture toughness | | | 3.03 |
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