摘要
煤层瓦斯预抽效果与抽采负压、钻孔间距、单孔瓦斯流量衰减规律及累计预抽时间密切相关,搞清楚钻孔瓦斯流量衰减规律,有助于预先评估煤层瓦斯预抽效果,同时,对影响钻孔瓦斯流量衰减规律的因素进行研究,有助于钻孔合理施工、抽采参数的选取。
The pre-drainage effect of coal seam gas is closely related to the negative pressure,the distance between boreholes,the attenuation law of single-hole gas flow and the accumulative pre-drainage time,it is helpful to evaluate the pre-drainage effect of coal seam gas by making clear the law of gas flow attenuation in borehole,and to study the factors affecting the law of gas flow attenuation in borehole,it is helpful for reasonable drilling and selection of pumping parameters.
作者
冷超
LENG Chao(Yuwu Mining Company of Lu'an Mining Group,Changzhi 046100,China)
出处
《煤炭技术》
2025年第9期189-191,共3页
Coal Technology
关键词
顺层钻孔
流量
衰减规律
抽采参数
bedding borehole
flow rate
attenuation law
pumping parameters
