摘要
基于勘探资料和实验数据,分析了冷水江矿区煤层含气性和储层特征,估算了煤层气资源量。研究表明:研究区3、5煤层累计厚度3.5 m。3、5煤层含气量一般大于8 m^(3)/t,最高可达20.37 m^(3)/t。3、5煤层煤体结构较破碎,孔隙、裂隙发育,渗透性差,吸附性好,储层压力适中。研究区煤层气地质资源量28.37亿m^(3),资源丰度0.61亿m^(3)/km^(2),资源前景较好。
Based on exploration data and experimental data,analyzes the coal seam gas-bearing property and reservoir characteristics of Lengshuijiang mining area,and estimates the amount of CBM resources.Research shows that the cumulative thickness of the 3rd and the 5th coal seams in the study area is 3.5 m.The gas content of the 3rd and the 5th coal seams are generally greater than 8 m^(3)/t,up to 20.37 m^(3)/t.The 3rd and the 5th coal seams have a more broken coal body structure,more developed pores and fissures,poor permeability,good adsorption,and moderate reservoir pressure.The geological resources of CBM in the study area is 28.37×10^(8) m^(3),and the resource abundance is 0.61×10^(8) m^(3)/km^(2),which has good resource prospects.
作者
杜江
蔡宁波
张良平
DU Jiang;CAI Ningbo;ZHANG Liangping(Geophysical and Geochemical Survey Institute of Hunan,Changsha 410014,China;Hunan Geological New Energy Exploration and Development Engineering Technology Research Center,Changsha 410014,China)
出处
《煤炭技术》
CAS
2024年第4期114-118,共5页
Coal Technology
基金
湖南省自然资源标准项目(2022B02)。
关键词
含气性
储层特征
资源量
冷水江矿区
煤层气
gas-bearing property
reservoir characteristics
resources
Lengshuijiang mining area
CBM
