松软突出煤层复合排渣钻进技术试验研究

详细信息

刊出日期: 2016-06-10

Composite Slag Discharging Drilling Technology in Soft and Outburst Coal Seam

Publish Date: 10 June 2016

摘要: 为提高煤矿松软煤层瓦斯抽采钻孔施工深度和抽采效果,以中风压(0畅7~1畅2 MPa)复合排渣钻进技术为基础,采用不同规格的螺旋钻具组合配合相应的工艺参数进行现场试验,比较不同钻具组合的应用情况,选择适应松软突出煤层的最优钻具组合与配套工艺,达到高效施工全煤长钻孔的目的。
- 松软突出煤层 /
- 中风压 /
- 螺旋钻进 /
- 复合排渣 /
- 瓦斯抽采钻孔
Abstract: In order to improve the gas drainage hole drilling depth and the extracting effect, based on composite slag dis-charging technology with medium air pressure (0.7~1.2MPa), the field test was carried out by using screw drilling tool assembly with different specifications matched with corresponding process parameters.Comparing the different application conditions, the best bottom hole assembly and the matching technologies were selected to achieve high-efficient long bore-hole construction in whole coal seam.
- soft outburst coal seam /
- medium air pressure /
- screw drilling /
- composite slag discharging /
- gas drainage hole