石油学报 ›› 2006, Vol. 27 ›› Issue (1): 8-12.DOI: 10.7623/syxb200601002

• 地质勘探 • 上一篇    下一篇

鄂尔多斯盆地上古生界克拉通 坳陷盆地煤成气成藏机制

汪泽成1, 陈孟晋1, 王震2, 唐泽玮2   

  1. 1. 中国石油勘探开发研究院 北京 100083;
    2. 中国地质大学 北京 100083
  • 收稿日期:2005-04-04 修回日期:2005-09-09 出版日期:2006-01-25 发布日期:2010-05-21
  • 作者简介:汪泽成,男,1966年10月生,1998年毕业于中国矿业大学,现为中国石油勘探开发研究院地质所高级工程师,主要从事石油与天然气地质综合研究和石油构造等研究工作.E-mail:wangzecheng@petrochina.com.cn
  • 基金资助:
    国家重大基础研究发展规划(973)项目(2001CB209100)资助.

Simulation analysis on formation mechanism of coal-formed gas reservoir in intercratonic depression of the Upper Paleozoic in Ordos Basin

Wang Zecheng1, Chen Mengjin1, Wang Zhen2, Tang Zewei2   

  1. 1. Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China;
    2. China University of Geosciences, Beijing 100083, China
  • Received:2005-04-04 Revised:2005-09-09 Online:2006-01-25 Published:2010-05-21

摘要: 克拉通坳陷型含煤盆地具有构造稳定、沉积速率低、煤层分布广、温度场和压力场渐变式演化以及构造变形微弱等特点.以鄂尔多斯盆地上古生界为例,采用德国IES公司含油气系统PetroMod模拟软件,对煤成气成藏过程进行了模拟.坳陷型含煤盆地煤成气藏的成藏特性表现为:岩性气藏为主;气源灶呈"广覆式"分布;以近距离垂向运移为主、侧向运移为辅;叠置的砂体和裂缝发育带构成优势运移通道.

关键词: 鄂尔多斯盆地, 克拉通坳陷, 含煤盆地, 煤成气, 成藏机制, 模拟

Abstract: The intercratonic coal-bearing basins are characterized by slow sedimentary ratio,broadly distributed coal beds,gradual evolution mode of temperature and pressure,as well as weak structural deformation.Taking the Upper Paleozoic of Ordos Basin as an example,the forming process of coal-formed gas reservoir was simulated by PetroMod software.The results show that the lithologic gas reservoirs are dominant in the intercratonic coal-bearing basins.The source kitchen of the coal-formed gas is distributed broadly.The migration pathway of natural gas is short,and there is mainly the vertical migration,while the horizon migration is minority.Superimposed sand bodies and fracture-developed zones are the dominant carriers of gas migration.

Key words: Ordos Basin, intercratonic depression, coal-bearing basin, coal-formed gas, reservoir-forming mechanism, simulation

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