Gas gushing damping mechanism and its engineering application of bottom hole combined drilling tool
In order to solve the technical problem of gas blowhole over-limit in gas drainage holes, a method of weakening the gas gushing in the borehole was proposed. The structural model of a hole-bottom combined damping drilling tool was constructed. By establishing airflow resistance mechanics equation an...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of China Coal Society
2023-09-01
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| Series: | Meitan xuebao |
| Subjects: | |
| Online Access: | http://www.mtxb.com.cn/article/doi/10.13225/j.cnki.jccs.2022.1370 |