为了提高煤矿井下瓦斯抽采钻孔的施工深度和瓦斯抽采效果,研制出国内大多数煤矿适用的ZYWL-6000D型定向钻机装备,对其技术原理进行说明并给出了主要技术参数。利用此钻机在寺河煤矿进行定向钻进试验,期间共施工完成主孔10个,其中主孔深度超过1 000 m的钻孔4个,最深孔达1 017 m,侧钻开分支孔56个,最深分支孔240 m,钻孔累计总进尺达11 000余m,有效地检验了ZYWL-6000D定向钻机整套装备的性能。

In order to improve the construction depth of the gas drainage boreholes and the gas drainage effect in the underground mine, a ZYWL -6000D directional drilling equipment was researched and developed suitable for application to the most coal mines in China. The paper introduced the technical principle and provided th e major technical parameters.Directional drilling trails were conducted in Sihe Mine. During the trial period, there were ten main boreholes drilling completed.Among the m, there were four boreholes with depth over 1 000 m.The max depth of the borehole was 1 017 m.There were 56 branching boreholes completed with side drilling.The max depth of the branching borehole was 240 m.The total drilling depth of the boreholes was over 11 000 m.The performances of the completed ZYWL-6000D direction al drilling equipment was effectively verified and checked.

国家科技重大专项资助项目(2011ZX05041-001)；