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| Application of deep hole directional drilling rig in gas control |
| Wang Shengpu |
| Dongpang Mine, Jizhong Energy Resources Group Co., Ltd., Xingtai 054201, China |
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Abstract Based on the construction technology characteristics of deep hole directional drilling rig, this paper studies the directional drilling technology of screw motor at the bottom of the pneumatic hole in the deep horizontal mining face of Dongpang Mine, and summarizes a set of drilling technology suitable for the coal and rock structure characteristics of the mine and a feasible construction scheme of near horizontal and long distance coal and rock drilling technology. The results show that the directional drilling of gas drainage along the layer constructed by the drilling rig can save 513.42 million yuan compared with the bottom layer drilling. saving construction period by 7.75 months; it reduces the amount of drilling engineering, provides a new method of outburst elimination, improves the management level of mine outburst prevention, makes the outburst prevention work more targeted, advanced and accurate, and ensures the mine.
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