Control technology of blank zone in gas drainage boreholes group based on accurate measurement of borehole trajectory
In the process of drilling construction, due to the influence of drill pipe weight, geological conditions and drilling technology, the actual drilling trajectory deviation is larger than the design trajectory. The deviation of drilling trajectory leads to the appearance of blank zone in the area cov...
I tiakina i:
| Kaituhi matua: | |
|---|---|
| Hōputu: | Artigo |
| Reo: | Chinês |
| I whakaputaina: |
Editorial Office of Safety in Coal Mines
2022-01-01
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| Rangatū: | Meikuang Anquan |
| Ngā marau: | |
| Urunga tuihono: | https://www.mkaqzz.com/cn/article/id/7789 |
| Ngā Tūtohu: |
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!
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