| 松软突出煤层复合排渣钻进技术试验研究 |
| 投稿时间：2016-01-18 修订日期：2016-03-07 点此下载全文 |
| 引用本文：郝永进,李乔乔,王毅,等.松软突出煤层复合排渣钻进技术试验研究[J].钻探工程,2016,43(6):22-25.HAO Yong-jin,LI Qiao-qiao,WANG Yi,et al. Composite Slag Discharging Drilling Technology in Soft and Outburst Coal Seam[J]. Drilling Engineering, 2016,43(6):22-25. |
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| 基金项目:中煤科工集团西安研究院有限公司自筹项目“煤矿区应急救援大直径钻孔成孔工艺技术研究”（编号：2014ZD004) |
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| 中文摘要: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(0.7～1.2 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。 |
| 中文关键词:松软突出煤层 中风压 螺旋钻进 复合排渣 瓦斯抽采钻孔 |
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| Composite Slag Discharging Drilling Technology in Soft and Outburst Coal Seam |
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| Abstract:In order to improve the gas drainage hole drilling depth and the extracting effect, based on composite slag discharging 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 borehole construction in whole coal seam. |
| keywords:soft outburst coal seam medium air pressure screw drilling composite slag discharging gas drainage hole |
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