煤炭工程 ›› 2015, Vol. 47 ›› Issue (5): 55-57.doi: 10.11799/ce201505019

• 施工技术 • 上一篇    下一篇

高位裂隙带长距离钻孔在高瓦斯矿井中的应用

张利军   

  1. 潞安集团
  • 收稿日期:2014-07-09 修回日期:2014-08-23 出版日期:2015-05-11 发布日期:2015-05-20
  • 通讯作者: 张利军 E-mail:799387762@qq.com

An Application Research of High Level Fracture Boreholes in Goaf Gas Drainage

  • Received:2014-07-09 Revised:2014-08-23 Online:2015-05-11 Published:2015-05-20

摘要: 随着余吾煤业开采深度和规模的不断增大,采空区瓦斯涌出问题已成为制约其安全高效生产的主要因素。针对目前井下常规钻机钻孔深度不够,瓦斯预抽期较短等现象,余吾煤业引进了澳大利亚生产的VLD-1000型千米定向钻机,提出了应用千米定向钻机施工高位裂隙钻孔进行采空区瓦斯抽采技术。分析结果表明,该项技术较常规钻机施工钻孔的优越性主要体现在瓦斯抽采效果好、定位能力强,而且所需钻场数量少、节约成本,能够有效治理采空区瓦斯涌出问题,具有广阔的应用前景。

关键词: 千米定向钻机, 瓦斯抽采, 采空区, 高位裂隙钻孔

Abstract: With the enlargement of the mining depth and scale of Yuwu coal mine, goaf gas emission has become the main factor of restricting its high yield and efficiency. Based on the phenomenon of current drilling machine which hole depth is not enough and time of gas drainage is short, VLD-1000m directional drilling machine of Australia has been introduced in recent years. A new goaf drainage technology of high level fracture boreholes using this drilling machine has been put forward. The analysis results show that this technology has more advantages than current drilling technology, which are mainly reflected in that the effect of gas drainage is good and the capability of positioning is strong, and which need very small quantities of drill sites and cost. So this technology can govern the problem effectively of goaf gas emission, and has a broad application prospect.

Key words: VLD-1000m directional drilling machine, gas drainage, goaf, high level fracture boreholes

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