Research Article
Experimental and Numerical Investigation on Hydraulic Fracture Propagation Law of Composite Rock Materials considering the Disturbing Stress Effect
Table 6
Experimental scheme for hydraulic fracturing of composite rock materials.
| Test name | Confining pressure (MPa) | In situ stress coefficient | Bedding plane cementation strength (MPa) | The injection rate of fracturing fluid (m-3/min) | | | |
| 2-1 | 4 | | 3 | 0.25 | 0.28 | 0.0005 | 2-2 | 4 | | 3 | 0.25 | 0.84 | 0.0005 | 2-3 | 6 | | 3 | 0.5 | 0.28 | 0.0005 | 2-4 | 6 | | 3 | 0.5 | 0.84 | 0.0005 |
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