新疆吉木萨尔县水溪沟矿区煤层气成藏研究  

Study on Coalbed Methane Accumulation in Shuixigou Mining Area of Jimusaer County

作　　者：梁剑明 李成 胡永 李磊佳 LIANG Jianming;LI Cheng;HU Yong;LI Leijia(No.156 Coalfield Geological Exploration Team,Xinjiang Coalfield Geology Bureau,Xinjang 830009;Northwest Bureau of China Metallurgical Geology Bureau,Shaanxi 710119)

机构地区：[1]新疆维吾尔自治区煤田地质局一五六煤田地质勘探队,新疆830009 [2]中国冶金地质总局西北局,陕西710119

出　　处：《中国煤层气》2022年第3期34-36,33,共4页China Coalbed Methane

摘　　要：文章经过分析准南煤田水溪沟矿区的煤储层物性和含气性特征,系统提高了对矿区低阶煤层气的认识。首先,顶板泥岩含量较高有利于气藏保存;主要煤层宏观煤岩类型以镜质组为主;煤类以不黏-长焰煤为主,变质程度0-I阶相对于中高阶优势小;成因类型为生物成因;裂隙整体较为发育,在同一储层已经出现裂隙差异性较大;主力煤层中西部位置储层渗透率评价指数表现突出。Based on the analysis of coal reservoir physical and gas-bearing characteristics in Shuixigou Mining Area,this paper systematically raises the understanding of low-rank coalbed methane.Firstly,the high content of mudstone in the roof is beneficial to the preservation of the gas reservoirs.The main macro types of coal seams are vitrinite.The coal is mainly non-viscous long-flame coal,and the metamorphic degree of 0-I is less than that of middle-high.The genetic type is biogenic.Fractures are well developed as a whole,and there are large differences in fractures in the same reservoir.The permeability evaluation index of the central and western parts of the main coal seam is outstanding.

关 键 词：煤层气 地球物理测井 储层物性 渗透率 

分 类 号：P618.13[天文地球—矿床学]