龙潭组煤层群底组煤层综采工作面卸压瓦斯来源分析研究  

Source of pressure relief gas in fully mechanized mining face of coal seam group bottom of Longtan Formation

作　　者：胡金春 吕士磊 兰红 陈忠林 陆春辉 HU Jinchun;LYU Shilei;LAN Hong;CHEN Zhonglin;LU Chunhui(Longfeng Coal Mine,Guizhou Lindong Coal Industry Development Co.,Ltd.,Bijie 551700,China;Pingan Coal Mine Gas Control National Engineering Research Center Co.,Ltd.,Huainan 232000,China)

机构地区：[1]贵州林东煤业发展有限责任公司龙凤煤矿,贵州毕节551700 [2]平安煤矿瓦斯治理国家工程研究中心有限责任公司,安徽淮南232000

出　　处：《陕西煤炭》2024年第12期110-113,共4页Shaanxi Coal

摘　　要：本项目对林东龙凤煤矿龙潭组上段和中段煤系地层内4、5、9号煤层解吸瓦斯碳氢同位素分布规律进行了研究分析,运用基于稳定碳氢同位素的量化分源识别方法,全面分析和研究煤层气体的稳定碳同位素值的分布特征,得出9号煤层工作面近距离煤层气的稳定碳同位素值特征图谱。通过分源线性计算模型,得出9号煤层综采工作面卸压瓦斯来源体积比例,为矿井瓦斯精准防治提供科学依据。This project has studied and analyzed the hydrocarbon isotope distribution of desorbed gas in coal measures of the 4th,5th and 9th coal seams in the upper and middle sections of the Longtan Formation in the Longfeng Coal Mine,Lindong,the distribution characteristics of stable carbon isotope values of coal-bed gas are analyzed and studied using the method of quantitative source identification based on stable carbon and hydrogen isotopes,the characteristic graph of stable carbon isotope value of coalbed methane in close distance in 9 coal face is obtained.By split source linear calculation model,the volume ration of pressure relief gas source on the mechanized working face is calculated.The study provides a scientific basis for mine gas prevention and control.

关 键 词：龙潭组 解吸 同位素 分源 图谱 

分 类 号：TD712[矿业工程—矿井通风与安全]