石油学报 ›› 1999, Vol. 20 ›› Issue (3): 31-37.DOI: 10.7623/syxb199903006

• 地质勘探 • 上一篇    下一篇

六盘水地区煤层气地质特征及富集高产控制因素

桂宝林   

  1. 滇黔桂石油勘探局勘探开发科学研究院
  • 收稿日期:1998-03-09 修回日期:1998-03-09 出版日期:1999-05-25 发布日期:2010-05-21
  • 作者简介:桂宝林,男.1947年6月生。1990年毕业于成都地质学院。现任滇黔桂石油勘探局高级工程师、云南大学兼职教授。通讯处:云南省昆明宙关上滇黔桂石油勘探局研究院。邮政编码:650200。
  • 基金资助:
    中国石油天然气总公司“九五”煤层气科技工程项目,云南省自然科学研究基金

GEOLOGICAL CHARACTERISTICS AND ENRICHMENT CONTROLLING FACTORS OF COALBED METHANE IN LIUPAN SHUI REGION

Gui Baolin   

  1. DianQianGui Petroleum Exploration Bureau
  • Received:1998-03-09 Revised:1998-03-09 Online:1999-05-25 Published:2010-05-21

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

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