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天然气地球科学 ›› 2011, Vol. 22 ›› Issue (2): 352–360.doi: 10.11764/j.issn.1672-1926.2011.02.352

• 非常规天然气 • 上一篇    下一篇

大宁—吉县地区煤层气成藏条件及富集规律

李五忠, 陈刚, 孙斌, 孙粉锦, 赵庆波   

  1. 1.中国矿业大学(北京），北京 100083；
    2.中国石油勘探开发研究院廊坊分院，河北 廊坊 065007
  • 收稿日期:2010-04-07 修回日期:2010-05-25 出版日期:2011-04-10 发布日期:2011-04-10
  • 通讯作者: 李五忠lwzmcq69@petrochina.com.cn E-mail:lwzmcq69@petrochina.com.cn
  • 作者简介:李五忠(1967-)，男，河北荣城人，高级工程师,博士后,主要从事煤层气科研生产工作.
  • 基金资助:

    国家油气重大专项(编号：2008ZX05033-003)资助.

Geological Controls of Coalbed Methane Enrichment  in Daning Jixian Area, Southeastern Ordos Basin

LI Wu-Zhong, CHEN Gang, SUN Bin, SUN Fen-Jin, ZHAO Qing-Bo   

  1. 1.China University of Mining and Technology，Beijing 100083, China；
    2.Langfang Branch, Research Institute of Petroleum and Development，PetroChina, Langfang 065007,China.
  • Received:2010-04-07 Revised:2010-05-25 Online:2011-04-10 Published:2011-04-10

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摘要：

通过对大宁—吉县地区煤岩的生储气能力、煤储层渗透性、煤层气保存条件等煤层气成藏条件的分析，认为研究区发育承压水和断层封堵复合型煤层气藏，煤层气富集规律主要受沉积环境、煤储层渗透性、现今地应力以及水动力环境等的影响。钻探资料证实，河间湾沼泽相、构造宽缓部位以及地应力低值区为煤层气最有利富集区，是该区中煤阶煤层气勘探最有利的地区。

关键词: 大宁&mdash, 吉县地区, 煤层气, 成藏条件, 气藏类型, 富集规律

Abstract:

This paper studied the key elements of CBM pool that affected by coal generating and storing capacity, permeability of coal seals and preservation of coalbed methane in Daning Jixian area. Results showed that the CBM pool of this area was sealed off by tectonic and artesian hydrodynamic force. Deposition environment, coalbed permeability, current terrestrial stress and hydrodynamic environment affected the coalbed methane enrichment and high production. It was proved by exploration that high production area was in marsh facies, broad structural and low terrestrial stress area, which was one of CBM exploration optimum in midrank coal in China.

Key words: Daning-Jixia, Coalbed methane, Reservoir formation condition, Gas pool type, Enrichment law.

中图分类号: 

  • TE122

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