煤层气地质学新进展  

The advance of coalbed methane geology

作　　者：王生维[1] 陈钟惠[1] 张明[1] 段连秀[1] 

机构地区：[1]中国地质大学资源学院,湖北武汉430074

出　　处：《煤田地质与勘探》2002年第5期20-22,共3页Coal Geology & Exploration

摘　　要：自 2 0世纪 80年代以来 ,我国的煤层气勘探取得了突破性进展。在沁水盆地南部获得了可观的煤层气地质储量 ;河东煤田的煤层气勘探也取得了重大进展。煤层气地质学研究取得了明显进展 :a 煤储层岩石物理研究取得重要进展 ;b 提出了煤层气藏的概念并依据我国的煤层气地质条件识别出几种主要煤层气藏类型 ;c 深化了对煤层气藏封闭保存条件的认识 ,充分认识到煤层气耗散对煤层气封闭保存的重要影响。d 对高煤阶煤层气藏研究有了突破性进展 ,突破了无烟煤勘探煤层气的禁区 ,获得了可观的煤层气地质储量 ;e 强化了低煤阶煤层气藏的研究 ;f 深化了对煤层气藏不均一性的认识 ,初步揭示了煤层气藏不均一性的产生原因及其分布规律。The breakthrough advance of coalbed methane(CBM)exploration has been gained in last 10 years in China,the large amount CBM reserve is obtained in Qinshui Basin,the southeastern Shanxi,and the great advance of CBM exploration is got in Hedong coalfield,the southwestern Shanxi.The great advance of CBM geology is got in the standards and the technique of selecting exploration districts.They are as follows:(a)the break advance of the petrophysics of coal reservoirs;(b)the CBM flows,gas reservoirs,inrichment,preserving and production,the concept of CBM pool is accepted and several types of CBM pool are recognized according to the geological conditions of China;(c)the trap and preserving are very important for the economic CBM pool,and the consideration that the CBM occurrence only in coal seams is changed,the defusing and flow of CBM from the CBM pool are very important for the CBM preserving;(d)the economic CBM pool is discovered from high rank coal seams in China;(e)the low rank coals (brown coal and high bituminous coal)are of great potential for the CBM exploration;(f)the heterogeneity of CBM pool is recognized deeply.

关 键 词：煤层气 地质学 勘探 封闭保存条件 分布规律 

分 类 号：P618.11[天文地球—矿床学]