寺河矿瓦斯富集区内井间含气量差异研究  

Study on Differences of Interwell Gas Contents in Gas Enrichment Region in Sihe Mine

作　　者：赫云兰[1] 徐东晶[1] 梁明星[1] 吴志远[1] 

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤炭技术》2017年第2期142-144,共3页Coal Technology

基　　金：国家自然科学基金青年基金(41602168);中国博士后基金(2016M591286);中国地质调查局油气中心研究课题(12120115102101)

摘　　要：以沁水盆地南部寺河矿区3#煤层为研究对象,对研究工区内的井间瓦斯含气量差异及影响因素进行了分析。结果表明,造成井间含气量差异的主要因素有构造发育、煤层厚度、埋深及煤岩结构。埋深与煤岩结构是造成单井含气量差异的最直接影响因素,共同决定了煤层的含气性。地层压力越大,煤层密度越低,煤层气含量越高。Selected coalbed 3^# as target in Sihe mine of the southern Qinshui basin, analysed the differences of interwell gas contents and the various geologic factors influencing the enrichment. The results show that the main influence factors to differences in gas enrichment include tectonic development, coalbed thickness, burial depth and coalbed structure. Among these, burial depth and coalbed structure are the direct influence factors and determine the gas content of single wells together. Areas relatively higher in gas content are located where the fomation pressure is greater and the density is lower.

关 键 词：瓦斯 含气量 差异 

分 类 号：TD712[矿业工程—矿井通风与安全]