摘要
为了分析伏岩煤业瓦斯抽采钻孔流量衰减规律及造成流量衰减的主要原因,采用现场实测、理论分析相结合的方法对此进行了研究。对现场实测数据回归分析,得出了抽采钻孔流量衰减规律符合对数公式:q t=-39.989ln(t)+257.94,相关性系数R2=0.941 5。分析认为煤层瓦斯压力降低及钻孔漏气是造成纯流量衰减的主要原因。
In order to analyze gas extraction drilling flow attenuation laws and reasons of Fuyan Coal Mine,the paper studies this by adopting the method of field test combined with theoretical analysis. Based on regression analysis of field test data,the paper obtained that gas extraction drilling hole flow attenuation law is in line with the logarithmic formula q t=-39. 989ln（ t） ＋ 257. 94,the correlation coefficient R2= 0. 941 5. It was thought that coal seam gas pressure reducing and drilling leakage are the mine reasons of pure flow attenuation.
出处
《煤矿安全》
CAS
北大核心
2013年第12期160-162,共3页
Safety in Coal Mines
关键词
钻孔瓦斯流量衰减
瓦斯抽采
瓦斯压力
钻孔漏气
回归分析
drilling gas flow attenuation
gas extraction
gas pressure
drilling leakage
regression analysis
