| 下向穿层瓦斯抽采钻孔新型封孔方法及应用 |
| |
| 引用本文： | 戎立帆,;柏发松,;车志飞.下向穿层瓦斯抽采钻孔新型封孔方法及应用[J].中国安全生产科学技术,2014(8):64-68. |
| |
| 作者姓名： | 戎立帆 ;柏发松 ;车志飞 |
| |
| 作者单位： | [1]安徽理工大学能源与安全学院,安徽淮南232001; [2]湖南科技大学煤矿安全开采技术湖南省重点实验室,湖南湘潭411201; [3]淮南矿业集团潘三矿,安徽淮南232001 |
| |
| 基金项目： | 煤矿安全开采技术湖南省重点实验室开放基金项目（201306） |
| |
| 摘 要： | 潘三煤矿17181(1)运输顺槽顶板岩层含水丰富,下向穿层钻孔抽采17181(1)运顺瓦斯受岩层富水影响较大。为解决这一问题,结合潘三矿11-2煤顶板实际情况,分析了影响下向穿层钻孔抽采瓦斯的主要因素,提出了"先区域封水,后打抽采钻孔,再利用‘两堵一注’快速封孔法封孔"成套技术解决方案,形成了一种新型下向穿层瓦斯抽采钻孔封孔方法。经潘三矿17181(1)瓦斯综合治理巷现场实践证明,下向穿层抽采钻孔的瓦斯抽采纯量与抽采浓度均有大幅度提高,钻孔封孔效果良好。
|
| 关 键 词： | 瓦斯抽采 下向钻孔 区域封水 封孔方法 |
New hole sealing method and application for gas extraction by downward cross-layer drilling |
| |
| Institution: | RONG Li-fan, BAI Fa-song, CHE Zhi-fei ( 1. School of Mining and Safety Engineering, Anhui University of Science and Technology , Huainan Anhui 232001, China; 2. Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan Hunan 411201, China; 3. Pansan Mine, Huainan Mining Group, Huainan Anhui 232001, China) |
| |
| Abstract: | The roof strata of 17181（1） cross heading in Pan San coal mine contains water richly , for this reason, the gas is difficult to be extracted from the coal of 17181（1） cross heading through downward cross-layer drilling. In order to solve this problem , with the practical situation of roof strata of 11-2 coal seam in Pan San coal mine , the major factors influencing gas drainage through downward cross-layer drilling were discussed .A package solution contains plugging water in area and a hole sealing method was put forward , and a new hole sealing method for gas extraction by downward cross-layer drilling was formed .According to the field practice , this new method worked well, both the average quantity and the average concentration of extracted gas increased dramatically . |
| |
| Keywords: | gas extraction downward drilling regional water plugging hole sealing method |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
