Fracture propagation mechanism of coalbed methane drainage hole after prefabricated water jet slot fracturing based on J-integral model
Aiming at the method of mining coalbed methane by fracturing with guide groove, the theoretical analysis and numerical simulation method are used to analyze the change law of coal mechanical properties and the crack propagation mechanism after the jet fracture forms the fracture. The results show th...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722002839 |