地学前缘 ›› 2007, Vol. 14 ›› Issue (6): 143-150.

• 论文 • 上一篇    下一篇

准噶尔盆地油气运移基本方式与机理探讨

卢华复; 王胜利; 贾承造;

  

  • 出版日期:2008-06-30 发布日期:2008-06-30
  • 基金资助:

    国家自然科学基金资助项目(40602014)

Discussion on basic styles and mechanism of petroleum fluid migration in the Junggar Basin

  • Online:2008-06-30 Published:2008-06-30

摘要:

在准噶尔盆地,以断裂为主,联合输导层(储层和不整合)的“断控体系”是油气运移的基本固体格架。文中从油气形成和演化过程中的有机-无机相互作用入手,分析了准噶尔盆地油气运移的基本方式和机理。结果表明,油气在输导层运移过程中,随有机质热演化、成岩演化,以及距油源断裂的远近不同,伴随着的水量有着显著变化。流体性质的差异导致了不同的储层水岩反应和油气成藏机制,据此,可将油气在输导层中的运移方式划分出两种基本类型:机械-侵蚀型和机械型。而在断裂带地区,断裂对储层中高压流体系统的沟通,触发了“减压沸腾”作用,伴随着流体沸腾,油气呈幕式运移聚集。

关键词:

油气运移, 方式和机理, 含油气流体, 断裂, 准噶尔盆地,

Abstract:

In the Junggar Basin, petroleum generally migrates along reservoir rocks (including unconformity) and faults. In this paper, the basic styles and mechanism of petroleum migration were analyzed, based on organic-inorganic interaction during hydrocarbon formation and evolution. It is shown that in reservoir rocks, based on the characteristics of petro-fluid, oil-gas migration styles vary in mechanical-solution and mechanical characteristics, respectively. The factors controlling this fluid heterogeneity inclu...

Key words:

petroleum migration, style and mechanism, petro-fluid, fault, the Junggar Basin,