石油学报 ›› 2007, Vol. 28 ›› Issue (3): 13-16.DOI: 10.7623/syxb200703003

• 地质勘探 • 上一篇    下一篇

珠江口盆地深水区白云凹陷始新世洼陷结构研究

连世勇, 何敏, 庞雄, 申俊, 柳保军, 吴湘杰   

  1. 中海石油(中国)有限公司深圳分公司技术部, 广东广州, 5102400
  • 收稿日期:2006-04-30 修回日期:2006-10-28 出版日期:2007-05-25 发布日期:2010-05-21
  • 作者简介:连世勇,男,1973年10月生,1997年获华东地质学院学士学位,现为中海石油(中国)有限公司深圳分公司技术部工程师,主要从事地震解释及勘探研究工作.E-mail:lianshy@cnooc.com.cn
  • 基金资助:
    国土资源部全国油气资源战略选区调查及评价项目(XQ-2004-05)和国家自然科学基金项目(No.40238060)联合资助.

Research on Eocene structure of Baiyun Sag in deep-water area of Pearl River Mouth Basin

Lian Shiyong, He Min, Pang Xiong, Shen Jun, Liu Baojun, Wu Xiangjie   

  1. Technology Department of CNOOC China Ltd. Shenzhen, Guangzhou 510240, China
  • Received:2006-04-30 Revised:2006-10-28 Online:2007-05-25 Published:2010-05-21

摘要: 利用新采集的长电缆地震资料及地质、测井和地化资料研究表明,白云凹陷在始新世文昌期由一系列断层控制的半地堑组成,断裂对文昌组沉积的控制作用明显,但晚期白云凹陷的持续沉降以及巨厚的渐新统-中新统地层沉积,掩盖了早期半地堑的形态.断陷期的半地堑控制了湖相烃源岩的分布,对这些半地堑的进一步分析有利于厘清文昌组烃源岩的分布及促进该区的油气勘探.

关键词: 珠江口盆地, 深水区, 白云凹陷, 半地堑, 断层, 烃源岩

Abstract: The structure of Baiyun Sag in the deep-water area of Pearl River Mouth Basin was studied by applying the new long-cable seismic data in combination with the geology,logging and geochemistry data.Baiyun Sag was composed of a series of half-grabens controlled by the faults in the Wenchang Age of Eocene Epoch,and the sediment of Wenchang Formation was controlled by faults obviously in this period.In the Late Eocene Epoch,Baiyun Sag persisted subsiding and deposited the thick strata of the Oligocene-Miocene,which covered the early structure of half-grabens.In the rift period,the half-grabens controlled the distribution of lacustrine source rocks.Further analysis to half-grabens is favorable to reveal the distribution of source rocks in Wenchang Formation and improve the petroleum exploration in this area.

Key words: Pearl River Mouth Basin, deep water area, Baiyun Sag, half graben, fault, source rocks

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