多层叠置含煤系统可采煤层含气特征及控制因素——以贵州盘县马依东二井田为例  

Mineable Coal Seam Gas-bearing Features and Control Factors within Multi-seam Superimposed Coal-bearing System——A Case Study of Mayidong Minefield No.2,Panxian,Guizhou

作　　者：张孟江[1] 吴财芳[2] Zhang Mengjiang;Wu Caifang(Geological Exploration and Research Institute,Guizhou Bureau of Coal Geology,Guiyang,Guizhou 550008;School of Resources and Geosciences,CUMT,Xuzhou,Jiangsu 221116)

机构地区：[1]贵州省煤田地质局地质勘察研究院,贵阳550008 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《中国煤炭地质》2021年第10期43-47,共5页Coal Geology of China

基　　金：国家科技重大专项(2011ZX05034);国家自然科学基金项目(41272178);中国矿业大学重大项目培育专项基金(2592014ZDPY26)。

摘　　要：通过大量的煤田地质勘探资料及实验室测试分析数据,综合应用煤层气地质学、煤田地质学、构造地质学等学科的理论和方法,查明了研究区可采煤层含气量展布特征及气体组分特征;在分析构造、埋深、水文地质条件、沉积条件及其相互之间的耦合关系的基础上,探讨了主要地质因素的控气作用。结果表明:含气量低值区位于背斜轴部附近;含气量中值区埋深相对较深,且处于水力封闭区;含气量高值区位于F 67断层东南部。Based on a mass of coal geological exploration information and laboratory tested and analyzed data,comprehensively used theories and methods from CBM geology,coal geology,structural geology etc disciplines have identified study area mineable coal seam gas content distribution features and gas compositional features.On the basis of structure,buried depth,hydrogeological condition,sedimentary condition and their mutual coupling relationship analysis has discussed gas control action from main geological factors.The result has shown that gas content low area is situated near anticline axis;gas content medium area buried depth is relatively deep,within hydraulic closure area;gas content high area is situated to southeastern of fault F 67.

关 键 词：煤层气 控气因素 构造 水文地质 马依东二井田 

分 类 号：P618.11[天文地球—矿床学]