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现代地质 ›› 2009, Vol. 23 ›› Issue (3): 385-393.

• 构造地质学 •    下一篇

黄海新生代构造及油气勘探前景

万天丰1 ,郝天珧2   

  1. 1中国地质大学 地球科学与资源学院,北京 100083; 2中国科学院 地质与地球物理研究所,北京 100101
  • 收稿日期:2009-02-15 修回日期:2009-04-28 出版日期:2009-06-20 发布日期:2011-12-21
  • 作者简介:万天丰,男,教授,博士生导师,1938 年出生,构造地质学专业,主要从事构造地质学、大地构造学的教学与研究工作。Email: wan-tianfeng@163.com。
  • 基金资助:

    国家自然科学基金项目(40674046)

Cenozoic Tectonics of the Yellow Sea and Its Oil-Gas Exploration

Wan Tian-Feng-1, HAO Tian-Yao-2   

  1. 1School of Earth Sciences and Resources,China University of Geosciences, Beijing 100083, China;
    2Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2009-02-15 Revised:2009-04-28 Online:2009-06-20 Published:2011-12-21

摘要:

黄海构造是地质领域重要的研究课题,尤其是南黄海油气勘探工作虽然经过了30多年的研究与勘探,但至今仍进展不大;因此,如何突破该区油气勘探的难题引起普遍关注。黄海地区在新生代经历过2次近南北向的缩短与挤压(135~52 Ma,23~0.78 Ma)和2次近东西向的缩短与挤压(52~23 Ma, 0.78 Ma—)。新生代的4个构造期对于油气资源的形成、运移和保存产生了重大的影响。白垩纪—古新世是形成盆-山体系的雏型时期,始新世—渐新世(52~23 Ma)是生油层形成的主要时期,中新世—早更新世(23~0.78 Ma)的构造作用使NNE向的先存断裂成为油气运移的良好通道,中更新世以来(0.78 Ma—)近东西向的挤压使NNE向的断层闭合,为油气的保存创造了良好的条件。 建议大力加强南黄海地区NNE向的先存断裂与古近系相交部位及其上部的油气勘探工作。

 

关键词: 黄海, 大地构造, 新生代, 应力场, 油气勘探

Abstract:

To study the tectonics of the Yellow Sea is the common concern project. Although the oil-gas exploration has undergone more than 30 years in South Yellow Sea, the exploration progress of that is not successful. There are two nearly NS trending shortening and compression epochs (135-52 Ma and 23-0.78 Ma) and two nearly E-W trending shortening and compression stages (52-23 Ma and 0.78 Ma-) at the Yellow Sea and its adjacent areas during Cenozoic. Four tectonic epochs during Cenozoic have important influences on forming, migrating and preserving oil-gas reservoirs. An embryonic form of the basinrange framework occured in Cretaceous and Paleocene (135-52 Ma), and Eocene-Oligocene (52-23 Ma) is the main forming epoch for oilgas source. During Miocen-Early Pleistocene (23-0.78 Ma), tectonism caused favorable passage for oil-gas migration along NNE trending faults. Since Middle Pleistocene (0.78 Ma-) the NNE trending faults are closed and make a good condition for reservation of oil-gas, controlled by E-W trending shortening. The authors suggest to pay more attentions to the oil-gas exploration at the intersections between NNE trending existing faults and Eocene-Oligocene systems, and also pay attentions to the upper parts in South Yellow Sea area.

 

Key words: Yellow Sea, tectonics, Cenozoic, stress field, oil-gas exploration

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