西南石油大学学报(自然科学版) ›› 1999, Vol. 21 ›› Issue (1): 35-38(5.DOI: 10.3863/j.issn.1000-2634.1999.01.009

• 地质勘探 • 上一篇    下一篇

四川盆地东部石炭系含气系统的形成与演化

黎颖英1 林维澄2
   
  

  1. 1.中国石油天然气集团总公司信息研究所,北京100011;2.西南石油学院
  • 收稿日期:1998-10-15 修回日期:1900-01-01 出版日期:1999-02-20 发布日期:1999-02-20
  • 通讯作者: 黎颖英

GENERATION AND EVOLUTION OF CARBONIFEROUS PETROLEUM SYSTEM IN EASTERN SICHUAN BASIN

Li Yingying1 Lin Weicheng2

  

  1. Southwest Petroleum Inst
  • Received:1998-10-15 Revised:1900-01-01 Online:1999-02-20 Published:1999-02-20
  • Contact: Li Yingying

摘要: 为了探讨四川盆地东部石炭系含气系统的形成与演化规律,研究了川东石炭系含气系统的早期聚集和二次成藏模式:第一次成藏从中三叠世末印支运动期—渐新世末喜山运动前,是以开江古隆起继承性发展为背景的烃类持续稳定向古隆起方向聚集和转化的过程,在喜山运动前形成了川东石炭系大面积的地层—构造复合型古气藏;第二次成藏始于渐新世末喜山运动早期,是以开江古隆起为背景的天然气在地层—构造复合圈闭、潜伏背斜圈闭及主体背斜圈闭中重新聚集成藏过程。

关键词: 石炭系, 含气系统, 二次成藏, 演化, 四川盆地

Abstract: The Carboniferous petroleum system, with its formation and evolution largely controlled by the regional structural evolution, is one of the confirmed petroleum systems in eastern Sichuan Basin. The pool-forming history of this petroleum system can be divided into two stages. The first stage is from
the Indosinian orogeny at the end of middle Triassic to pre-Himalayan movement, during which constant hydrocarbon accumulation towards the Kaijiang paleohigh occurred against a background of continuous growth of the paleohigh, resulting in the formation of areally extensive stratigraphic-structural combination pools within the Carboniferous strata. The second stage started in early Himalayan at the end of Oligocene, during which post-accumulation re-distribution of hydrocarbons took place to have formed the stratigraphic-structural combination pools and anticlinal pools on the Kaijiang paleohigh.

Key words: Carboniferous, petroleum system, pool -forming, evolution, Sichuan Basin

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