【摘要】 在分析盘关向斜构造、煤层、煤质及煤岩特征基础上,对向斜内各矿井煤层气含量进行了研究,认为该区甲烷含量随煤化程度、深度、碳含量、镜质体含量增加而增加,随壳质体含量增加而下降,随矿物质增加而降低,与地下水活动的影响不明显。得出该区煤层气资源量丰富、含气量较高、渗透性较好、埋藏深度适中,2000m以浅煤层气资源量1778亿m3。更多还原

【Abstract】 Through the analyses of structure,coal seam,coal quality and coal lithological characters in the Panguan syncline,studied the CBM content of coalmines in the syncline.Considered that the methane content increasing along with the degree of coalification,depth,carbon content and vitrinite content increasing;has decreasing tendency along with the increasing of exinite;decreasing along with the increasing of mineral matter;and with no obvious relation to the underground water activities.The paper figured out that the area has abundant CBM resources with higher content,better permeability,and appropriate buried depth with CBM resource of 177.8 billion M3 above 2000m depth.更多还原