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天然气地球科学 ›› 2014, Vol. 25 ›› Issue (2): 221–227.doi: 10.11764/j.issn.1672-1926.2014.02.221

• 天然气地质学 • 上一篇    下一篇

宽扎盆地盐岩发育特征及其与油气成藏关系

薛保山，张树林   

  1. 1.中国地质大学(武汉)，湖北 武汉  430074；
    2.中国海洋石油总公司，北京  100027
  • 收稿日期:2013-03-01 修回日期:2013-06-13 出版日期:2014-02-10 发布日期:2014-02-10
  • 通讯作者: 薛保山xuebs@cug.edu.cn. E-mail:xuebs@cug.edu.cn.
  • 作者简介:薛保山(1978-)，男，湖北随州人，助理研究员,博士，主要从事地震资料解释及油气勘探研究. E-mail：xuebs@cug.edu.cn.
  • 基金资助:

    国家科技重大专项(编号：2008ZX05030-001)资助.

Tectonic Evolution of Salt Rock in Kwanza Basin and ItsRelation with Hydrocarbon Accumulation

XUE Bao-shan，ZHANG Shu-lin   

  1. 1.China University of Geoscience,Wuhan 430074,China;2.China National Offshore Oil Corp.,Beijing 100027,China
  • Received:2013-03-01 Revised:2013-06-13 Online:2014-02-10 Published:2014-02-10

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663

摘要：

宽扎盆地为一典型的早期裂谷与晚期被动大陆边缘叠合含盐盆地。盆地的形成经历了3期构造演化：裂谷阶段、过渡阶段和被动大陆边缘阶段，在过渡阶段发育厚层的盐岩。盐岩沉积后的演化主要受到了3种驱动因素(动力学机制)的控制，使得盐岩总体上呈现出“西厚东薄”的分布特点。盐岩沉积后的演化在一定程度上控制了盐上沉积地层的分布、盐相关圈闭的形成以及盐窗的分布等。根据盆地东西部盐岩演化的动力学机制和现今盐岩发育特点，把宽扎盆地划分为盐伸展区和盐挤压区。二者油气运移和聚集的规律是有所不同的，从而导致盐伸展区和盐挤压区的勘探潜力和勘探方向有所不同。

关键词: 盐岩, 发育特征, 油气成藏, 宽扎盆地

Abstract:

Kwanza Basin is a typical salt basin superimposed by rift in the early stage and passive continental margin in the late stage.The formation of the basin underwent three stages of tectonic evolution:rift stage,transition stage and passive continental margin stage.During the transition stage,thick layers of rock salt were deposited.Tectonic evolution after rock salt deposition was mainly controlled by three driving factors (dynamics),and in general the rock salt was thick in the west and thin in the east.To a certain extent,the evolution after rock salt deposition controlled the distribution of upper sedimentary formations,the formation of salt traps and the distribution of salt window.According to the dynamics of rock salt evolution and current rock salt characteristics,Kwanza Basin is divided into salt extension region and salt compression region.The two regions are of different migration and accumulation conditions,and thus are of different exploration potentials and directions.
 

Key words: Rock salt, Tectonic evolution, Hydrocarbon accumulation, Kwanza Basin

中图分类号: 

  • TE122.3
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