煤炭与化工2025，Vol.48Issue(1)：127-133,7.DOI:10.19286/j.cnki.cci.2025.01.027
寺河煤矿东井钻孔瓦斯有效抽采半径研究
Study on effective extraction radius of borehole gas in east well of Sihe Coal Mine
马向兵 1陈明明 2王乐2
作者信息
- 1. 晋煤集团寺河煤矿,山西 晋城 048205
- 2. 山西晋煤集团技术研究院限责任公司,山西 晋城 048205
- 折叠
摘要
Abstract
In this paper,the problem of gas extraction in coal mine is studied.Taking the 6302 working face in the east well area of Sihe mine as the object,the effective extraction radius of borehole is determined by analyzing the geological conditions and gas distribution of coal seam and combining with numerical simulation.The gas reserve method was used to determine the layout of the extraction boreholes,and the COMSOL software was used to simulate the extraction effects of different diameter boreholes.Finally,the optimal borehole diameter was determined to be 94 mm.The mathematical model of the number of days to reach the standard and the effective extraction radius is established.Through the comparative analysis of the extraction effect of ordinary boreholes and directional long boreholes,it is found that the effect of the two is similar under the same conditions.This study provides scientific technical support and decision-making reference for coal mine gas extraction.关键词
高瓦斯/数值模拟/瓦斯抽采/有效抽采半径Key words
high gas/numerical simulation/gas extraction/effective extraction radius分类
矿业与冶金引用本文复制引用
马向兵,陈明明,王乐..寺河煤矿东井钻孔瓦斯有效抽采半径研究[J].煤炭与化工,2025,48(1):127-133,7.
