淮南潘集深部11-2煤层含气量与地球化学特征及其地质条件影响因素分析  

Analysis of Gas Content,Geochemical Characteristics and Influencing Factors of Geological Conditions of No.11-2 Coal Seam from the Panji Deep Area in Huainan

作　　者：魏强 刘家乐 童家颖 石从秋 刘朝奇 WEI Qiang;LIU Jiale;TONG Jiaying;SHI Congqiu;LIU Chaoqi(School of Resources and Civil Engineering,Suzhou University,Suzhou 234000,China)

机构地区：[1]宿州学院资源与土木工程学院,安徽宿州234000

出　　处：《宿州学院学报》2022年第9期33-38,共6页Journal of Suzhou University

基　　金：教育部产学合作协同育人项目(202102136052);安徽省大学生创新创业训练计划项目(S202110379198);安徽省教育厅自然科学基金(KJ2021A1113);宿州学院博士科研启动基金项目(2019jb20)。

摘　　要：运用含气量测试直接法和气相色谱法(GC)结合地质背景,对淮南潘集深部地区11-2煤层含气量和地球化学特征与相关地质因素的关系进行分析。结果表明:11-2煤层含气量为9.66~13.68 m^(3)/t,平均值为11.58 m^(3)/t,并与埋藏深度、基岩厚度、储层压力和储层温度呈正相关关系。11-2煤层气甲烷碳同位素(δC)值分布范围为-44.89‰~-38.42‰,平均-41.58‰,与埋藏深度、基岩厚度、储层压力和储层温度呈正相关关系,表明δC数值随着埋藏深度和基岩厚度的增加而变得更重。另外,δC数值随含气量增加而变重,这说明δC与含气量的控制因素有关。Combined with the geological background, the correlation between gas content and geochemical characte-ristics of No.11-2 coal seam from the Panji deep area in Huainan was analyzed by using the direct method of gas content test and gas chromatography(GC).The results showed that the gas content of No.11-2 coal seam ranges from 9.66 to 13.68 m^(3)/t, with an average value of 11.58 m^(3)/t, and is positively correlated with burial depth, bedrock thickness, reservoir pressure and reservoir temperature.The δCvalues of No.11-2 coal seam range from-44.89‰ to-38.42‰,with an average of-41.58‰.The δCvalue has a positive correlation with burial depth, bedrock thickness, reservoir pressure and reservoir temperature which indicates that the δCvalues becomes heavier with the increased burial depth and bedrock thickness.Moreover, the value of δCbecomes heavier with the increases of gas content, which suggests that δCis related to the controlling factors of gas content.

关 键 词：潘集深部 煤层气含量 地球化学特征 影响因素 

分 类 号：P618[天文地球—矿床学]