Morphological characteristics of hydraulic punching holes and optimization of gas extraction parameters
At present, in drilling design and evaluation, the shape of hydraulic flushing hole is usually equivalent to cylinder, which is one of the important bases to determine the effective extraction radius. However, the shape of hole is subject to the joint action of many factors, so the scientific natur...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Safety in Coal Mines
2023-04-01
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| Series: | Meikuang Anquan |
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| Online Access: | https://www.mkaqzz.com/cn/article/id/8352 |