煤矿安全2018，Vol.49Issue(1)：104-106,3.DOI:10.13347/j.cnki.mkaq.2018.01.027
精确定向钻进技术在急倾斜煤层老空区探放水中的应用
Application of Precise Directional Drilling Technology in Water Detection and Water Release of Old Goaf in Steep Coal Seam
黄森林1
作者信息
- 1. 中煤科工集团重庆研究院有限公司,重庆400037
- 折叠
摘要
Abstract
In order to solve the problem of long distance of water detection and water release,large construction difficult,long duration and high cost in old goaf,precise directional drilling technology was applied to water detection and water release of old goaf in steep coal seam,the duration and cost of directional drilling technology and drainage roadwav technology were compared.The results show that precision directional drilling technology can solve the problem of water detection and water release of old goaf in steep coal seam.Single-hole drilling distance is 712 m.Compared with drainage roadway construction,the duration and cost of precision directional drilling technology can be reduced by about 2/3.Exploration and drainage drilling design should determine the lowest position of the water area as far in advance as possible.Drilling should be along the coal seam roof into the vicinity of the water area from the coal roof into the water area.关键词
定向钻进技术/急倾斜煤层/探放水/钻孔设计/老空区Key words
directional drilling technology/steep coal seam/water detection and water release/drilling design/old goaf分类
矿业与冶金引用本文复制引用
黄森林..精确定向钻进技术在急倾斜煤层老空区探放水中的应用[J].煤矿安全,2018,49(1):104-106,3.
