Drilling Experiment Research on Bedding Directional Drilling of Soft-Fragmentized Coal Seam Coal Mine

被引：0
|
作者：
Zhao, Shiping [1 ]
Sun, Jing [2 ]
Zhu, Xiaohan [3 ]
机构：
[1] Changchun Coll Elect Technol Changchun, Changchun 130000, Peoples R China
[2] Hebei Univ, Baoding 071000, Peoples R China
[3] Northeast Univ, Changchun 130000, Peoples R China
来源：
DEVELOPMENT AND PROTECTION OF MINERAL RESOURCES | 2025年
关键词：
coal mine safety; gas drainage; soft-fragmentized coal seam; bedding directional drilling; air compound drilling technology;
D O I：
10.1007/978-3-031-78690-7_25
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
For problems of shallow gas drainage hole depth, low control precision of drilling trajectory and poor gas drainage effect in soft-fragmentized coal seam Coal Mine, based on the analysis of mine gas geological conditions and existing pre-drainage modes, principle and key technologies of air compound directional drilling technology were introduced for bedding directional drilling construction, and a whole drilling experiment scheme was formulated including design of drilling field and borehole, selection of drilling equipment and assembly and summary of drilling technology requirements. A drilling experiment was carried out in 21608 roadway field.
引用
收藏
页码：242 / 249
页数：8
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