Abstract: LiuPan Shui,one of the most important coal-bed methane areas,is located in the central part of the Upper Yantze coal-bearing of the Late Permian in the Western Guizhou-Eastern Yunnan and Southern Sichuan regions.Coal and coal-bed methane accumulated in many synclinoria of the region.The geological characteristics study of the Liupan Shui coal-bed methane indicated the wide distribution of coalbeds with large thickness in the synclinoria or basins,high vitrinite amount in the anthropological composition,moderate coalification degree,high gas content in coal-bed,fractures well developed in coal bed situated in the regional magnetic-metamorphic belt,very good seality of caprock trapped in the confined ground water area with high pressure of coal-bed.Pan Xian Basin and Gemu,Langdai,Liuzhi, Bulang and Qingshan synclines have good geological conditions for coal-bed methane formation and enrichment.Coal-bed methane resource are estimated to be from 7,500 to 9,130×10m.

Key words: Liupan Shui, coal bed methane, geological characteristics, enrichment controlling factor, analysis

摘要： 六盘水是我国南方重要的煤层气富集区,处于黔西、滇东、川南晚二叠世上扬子聚煤盆地的富煤中心地带。煤与煤层气聚集于各式向斜之中。在对六盘水煤层气地质特征研究的基础上,揭示了六盘水煤层气富集高产控制因素:六盘水聚煤层气的各式向斜或盆地煤层分布广、厚度大;煤岩镜质组含量高;处于区域岩浆热变质区、煤层割理发育,构造裂缝适中,因而含气量高,可解吸率高,有利于煤层气富集高产;盖层条件优良;处于承压水区;煤层压力大。六盘水的盘县盆地、格目底向斜、郎岱向斜、六枝向斜、补郎向斜、青山向斜北西翼具备了形成煤层气富集高产区带的有利地质条件。六盘水各式向斜中煤层气资源量为75009130亿m³.

关键词: 六盘水, 煤层气, 地质特征, 富集高产因素, 分析