|
|
|
| Study on three-dimensional horizon of lateral high-level borehole in high gas and extra-thick coal seam |
| Cao Yizhong |
| Shenyang Research Institute Co., Ltd., Shenyang 113122, China |
|
|
|
|
Abstract Lateral high-level borehole is a kind of drainage borehole arranged in adjacent working face or roadway for the purpose of extracting gas in goaf of working face. It is mainly used in the working face where the overlying strata are mudstone and the traditional high-level drilling is difficult to form holes due to the influence of the advanced stress concentration area of the working face. Through the test and analysis of 22311 working face of Yonglong Company, after using lateral high-level boreholes to extract gas from goaf in different final hole layers, the optimal final hole layer of extraction effect was determined, and the purpose of shortening the drilling construction period and improving the extraction rate of working face was achieved.
|
|
|
|
|
|
| [ 1 ] 李翰林. EGF增渗液在高瓦斯特厚煤层预抽中的应用研究[ J ]. 现代矿业，2023，39（ 2 ）：238 - 240.
[ 2 ] 杨伟锋，刘建林，刘 飞，等. 大直径高位定向孔一次钻扩技术及瓦斯抽采效果分析[ J ]. 煤矿安全，2024，55（ 1 ）：50 - 56.
[ 3 ] 景长宝，张宝第，褚志伟，等. 复杂顶板高位定向长钻孔钻完孔技术[ J ]. 煤矿安全，2023，54（ 10 ）：201 - 205.
[ 4 ] 郭超奇. 黄陵矿区综采工作面卸压瓦斯流动通道研究及工程应用[ J ]. 煤矿安全，2023，54（ 5 ）：182 - 189.
[ 5 ] 陈 龙，龚选平，白廷海，等. 考虑推进速度效应的高位定向钻孔优势布置与效果分析[ J ]. 煤矿安全，2022，53（ 5 ）：157 - 163.
[ 6 ] 郭新红，任仲久. 多煤层条件下高位钻孔瓦斯抽采层位优选研究[ J ]. 煤矿安全，2021，52（ 5 ）：194 - 198. |
|
|
|
