淮南地区煤层气地质研究与勘探开发潜势  

STUDIES ON COALBED METHANE GEOLOGY AND POTENTIAL FOR EXPLORATION A ND DEVELOPMENT IN HUAINAN AREA

作　　者：桑树勋[1] 秦勇[1] 姜波[1] 范炳恒[1] 徐磊[1] 张华[1] 

机构地区：[1]中国矿业大学资源与地球科学学院

出　　处：《天然气工业》2001年第5期19-22,共4页Natural Gas Industry

基　　金：国家自然科学基金资助项目 (4 9972 0 5 2 ;4990 2 0 10 )内容

摘　　要：淮南地区含煤面积约 2 10 0km2 ,煤炭资源量和煤层气资源量巨大 ;同时地处华东腹地 ,西气东输管线将经过淮南 ,煤层气销售市场广阔。文章从地质角度分析了煤层气勘探开发的难点 ,展示了煤层气勘探开发潜势。煤储层几何形态复杂、煤体结构复杂、煤储层渗透率显著非均质性、含气性变化复杂、成藏史及控气因素复杂是成藏地质条件复杂性具体表现。地质选区难度大、储层强化工艺难度大是淮南煤层气勘探开发的难点所在。多储层、高含气、富资源、中煤级、近饱和、局部高渗等有利地质条件以及突出的区位优势和高研究程度预示了淮南地区煤层气勘探开发的巨大潜势。以煤储层非均质性研究为核心的靶区评价工作和针对性储层强化工艺技术开发是实现淮南地区煤层气勘探开发工业突破的关键。Coal is contained within about 2.1 thousand km3 area in Huainan(south Huai) district, where rich coal resource and coal gas resource can be found. Huainan is situated in the center of East China. The pipeline sending gas from west to east will go through South Huai, and so there is a wide sales market for selling coal gas. The difficulties and potentiality of exploration and development are well studied on the point of geology. The complexity of reservoir conformation geological conditions can be shown from that the geometric shape of coal layer and the coal body structure are complicated and the permeability of coal reservoir is extremely heterogeneous with complex gas-bearing change, reservoir conformation history and gas controlling factors. Difficulties in both geologically selecting zone and reservoir strengthening bring a lot of trouble in exploring and developing coal-formed gas in South Huai. Great potentiality of coal-formed gas exploration and development is predicted by many favorable geologic conditions such as multiple layers, high gas-bearing, rich resource, middle coal grade close by saturation, high regional permeability and outstanding district advantage and high value on research. Concentrated on heterogeneity of coal reservoir, assessment of target zone and technique development on strengthening reservoir do help coal-formed gas exploration and development in South Huai.

关 键 词：煤层气 地质特征 勘探 开发 淮南地区 

分 类 号：P618.11[天文地球—矿床学] TE12[天文地球—地质学]