煤矿安全2024，Vol.55Issue(5)：93-99,7.DOI:10.13347/j.cnki.mkaq.20222199
高位定向钻孔抽采瓦斯搭接部位研究与应用
Research and application of high-level directional drilling holes in gas extraction lap part
张明杰 1邓文博 2谭志宏 1李旭泽 3刘操 1袁帅2
作者信息
- 1. 河南理工大学 安全科学与工程学院,河南 焦作 454003||河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家重点实验室培育基地,河南 焦作 454003
- 2. 河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家重点实验室培育基地,河南 焦作 454003
- 3. 陕西富源煤业有限责任公司 党家河煤矿,陕西 富县 727500
- 折叠
摘要
Abstract
The reasonable lap of high-level directional drilling holes in adjacent drilling sites is an important link to ensure the stable extraction effect and improve the effective utilization rate of drilling holes.According to the results of the research on the mechan-ism of gas extraction in the high-level directional drilling holes of the roof fracture zone,by analyzing the influencing factors of the extraction effect such as the spatial position of the high-level directional drilling holes,the distribution characteristics of the roof fracture zone of the coal seam,and the drilling trajectory,the reasonable overlapping part of the borehole for successful replacement was determined,and the engineering application was carried out in Dangjiahe Coal Mine.The application shows that the overlap-ping length of 80-121 m borehole can meet the gas extraction effect,and the outer end of the lapping position can reduce the drilling amount of each borehole by about 40 m.关键词
定向钻孔抽采/搭接长度/裂隙带抽采/钻孔层位/钻孔轨迹/钻孔利用率Key words
directional drilling extraction/lap length/fracture zone extraction/drilling level/drilling trajectory/drilling utilization分类
矿业与冶金引用本文复制引用
张明杰,邓文博,谭志宏,李旭泽,刘操,袁帅..高位定向钻孔抽采瓦斯搭接部位研究与应用[J].煤矿安全,2024,55(5):93-99,7.
