天然气地球科学

• 天然气地质学 • 上一篇    下一篇

中国南海琼东南盆地渐新统陵水组沉积特征

张亚雄,朱筱敏,张功成,陈欢庆   

  1. 1.中国地质大学(北京)能源学院,北京 100083;2.中国石油大学地球科学学院,北京 102249;
    3.中海油研究总院,北京 100027;4.中国石油勘探开发研究院,北京 100083
  • 收稿日期:2013-01-25 修回日期:2013-05-23 出版日期:2013-10-10 发布日期:2013-10-10
  • 通讯作者: 张亚雄157498674@qq.com. E-mail:157498674@qq.com.
  • 作者简介:张亚雄(1983-),男,陕西子洲人,博士研究生,主要从事沉积学研究. E-mail:157498674@qq.com.

Sedimentary Characteristics of Oligocene Lingshui Formationin Qiongdongnan Basin,South China Sea

ZHANG Ya-xiong ,ZHU Xiao-min,ZHANG Gong-cheng,CHEN Huan-qing   

  1. 1.School of Energy Resources,China University of Geosciences,Beijing 100083,China;
    2.College of Geoscience,China University of Petroleum,Beijing 102249,China;3.CNOOC Reseach Center,Beijing 100027,China;
    4.PetroChina Exploration and Development Research Institute,Beijing 100083,China
  • Received:2013-01-25 Revised:2013-05-23 Online:2013-10-10 Published:2013-10-10

摘要:

琼东南盆地为我国南海一个重要的油气勘探区带,为了进一步明确陵水组的沉积特征以及沉积体系空间的展布特征,利用层序地层学、石油地质学和沉积学原理,并结合关键井的岩心观察、测井相的识别以及地震相反射特征的研究,将陵水组划分为4个三级层序,并识别出辫状河三角洲、扇三角洲、滨岸、浅海、碳酸盐岩台地和海岸平原6种主要的沉积相类型。详细分析了各种沉积相的岩电特征及微相类型,同时通过研究各层序空间展布特征,结合区域构造,认为局部海平面变化和构造作用是控制陵水组沉积体系展布的主要因素。

关键词: 中国南海, 琼东南盆地, 层序, 扇三角洲, 辫状河三角洲

Abstract:

Qiongdongnan Basin is an important oil- and gas-bearing basin in South China Sea.In order to understand the sedimentary characteristics and space distribution of the Lingshui Formation,based on the theory of sequence stratigraphy,petroleum geology and sedimentology,this paper divides the Lingshui Formation into four third order sequences and recognizes six major sedimentary facies including braided delta,fan delta,shore,shallow marine,carbonate platform and coast plain through the core observation,logging analysis and seismic data interpretation.We also finely analyzed sedimentary features and the micro-sedimentary facies of each sedimentary facies.Integrated with the regional tectonic and the analysis of the spatial distribution feature of each sequence,we believe that regional sea level changes and the tectonic are the two major factors affecting the distribution and development of the sedimentary systems.

Key words: South China Sea, Qiongdongnan Basin, Sequence stratigraphy, Fan delta, Braided delta

中图分类号: 

  • TE121.3

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