摘要
湖南短陂桥矿区位于涟邵煤田的西部,含煤地层为二叠系上统龙潭组,区内稳定发育的煤层及向斜盆地的构造形态为该矿区煤层气藏的赋存提供了有利的前提条件;主采煤层1、3煤层的显微组分及煤的变质程度显示煤层具有良好的生气性和吸附性,良好的围岩封闭条件以及地下水力作用比较封闭,有利于煤层气藏的赋存。综合分析认为该矿区具有形成良好煤层气藏的内、外部条件,是煤层气勘探开发的有利区域。
The Duanpiqiao mine area,Hunan is located in western Lianshao coalfield,coal-bearing strata belong to Longtan Formation,Upper Permian Series.Stably developed coal seams and structural form of synclinal basin have provided beneficial preconditions for CBM reservoir hosting.Maceral groups of main mineable Nos.1 and 3 coal seams presented favorable methane generation and adsorption conditions.Excellent wall rock sealing condition and groundwater circulation is also rather closed,thus favorable to CBM hosting.Through comprehensive analysis,considered that the mine area has excellent interior and exterior conditions for CBM reservoir hosting,thus a favorable area for CBM exploration and exploitation.
出处
《中国煤炭地质》
2010年第B08期50-53,共4页
Coal Geology of China
关键词
煤层气
储层
封闭
赋存条件
CBM
reservoir features
hosting condition
Duanpiqiao mine area
Hunan
