| 液动潜孔锤钻进技术在潘一煤矿井下穿层钻孔中的应用 |
| 投稿时间：2014-11-10 修订日期：2015-03-27 点此下载全文 |
| 引用本文：赵俊峰,金新,童碧,等.液动潜孔锤钻进技术在潘一煤矿井下穿层钻孔中的应用[J].钻探工程,2015,42(6):21-23.ZHAO Jun-feng,JIN Xin,TONG Bi,et al. Application of Hydro-hammer Drilling in a Coal Bed-Crossing Hole in Underground Coal Mine[J]. Drilling Engineering, 2015,42(6):21-23. |
| 摘要点击次数: 1098 |
| 全文下载次数: 753 |
|
|
| 中文摘要:以穿层钻孔方式进行松软煤层瓦斯预抽采极大地克服了松软煤层瓦斯治理难的问题，然而部分矿区煤层顶（底）板岩石坚硬，影响了钻孔施工效率。结合地质岩心钻探的优势，将液动潜孔锤与高强PDC钻头结合应用于煤矿井下穿层瓦斯抽采孔施工中。淮南潘一煤矿现场试验表明，该工艺方法较传统回转钻进方法，钻进效率提高了83%，钻头进尺寿命提高近5倍，具有良好的经济性能。采用清水为冲洗介质，无粉尘污染，噪声污染小，较为适合空间狭小的煤矿井下巷道施工。 |
| 中文关键词:液动潜孔锤 PDC钻头 煤矿穿层孔 钻进效率 钻头进尺寿命 潘一煤矿 |
| |
| Application of Hydro-hammer Drilling in a Coal Bed-Crossing Hole in Underground Coal Mine |
|
|
| Abstract:The difficulties of gas control are greatly overcome by coal bed crossing drilling for in-advance extraction in soft coal seam. But the hard rocks in roof and floor in some parts of the coal mine influence the drilling efficiency. According to the superiorities of geological core drilling, the hydro hammer was combined with PDC bit in the construction of coal bed crossing gas drainage hole in underground coal mine. Through the field practice in Panyi coal mine, it is proved that the drilling efficiency is improved by 83% comparing with the traditional rotary drilling and the service life increases nearly 5 times. In addition, by using water for flushing medium, there is no dust pollution with small noise. This technology is suitable for the construction in narrow space in mine roadway. |
| keywords:hydro hammer PDC bit coal bed crossing-hole drilling efficiency bit service life Panyi coal mine |
| 查看全文 查看/发表评论 下载PDF阅读器 |
