新疆石油地质 ›› 2010, Vol. 31 ›› Issue (4): 337-340.

• 油气勘探 •    下一篇

中国近海及东南亚地区古近纪断陷盆地湖相烃源岩及油气藏分布

康安, 杨磊   

  1. 中海石油 研究总院,北京 100027
  • 收稿日期:2010-03-22 发布日期:2020-10-19
  • 作者简介:康安(1972-),男,内蒙古乌兰察布人,工程师,博士,油气田开发,(Tel)010-84522198(E-mail)kangan@cnooc.com.cn.
  • 基金资助:
    国家科技重大专项项目(2008ZX05030-05);中海油综合科研项目(2008YXKJB-02)

Lacustrine Source Rock Occurrence and Its Petroleum Reservoir Distribution of Paleogene Fault Basins in Offshore China and Southeast Asia

KANG An, YANG Lei   

  1. Research Institute, CNOOC, Beijing 100027, China
  • Received:2010-03-22 Published:2020-10-19

摘要: 在中国近海和东南亚地区,湖相烃源岩生烃量分别占了总石油资源的95%和46%,而且湖相烃源岩主要分布在古近纪断陷湖盆中。通过对中国近海和东南亚地区7 个断陷湖盆烃源岩和油气藏分布特点的对比发现,存在两种特征明显的烃源岩分布模式:一种是厚度大、分布范围广的深水湖泊相泥岩为特征的渤海湾盆地模式;另一种是厚度小、分布范围小的浅水湖泊相泥岩为特征的Asri-中苏门答腊盆地模式。在此基础上通过分析这些盆地中烃源岩分布同油气田空间配置关系,揭示了烃源岩的分布特征与油气藏分布的规律。

关键词: 烃源岩, 断陷盆地, 古近纪, 中苏门答腊盆地, 东南亚

Abstract: The hydrocarbon-generating amounts from lacustrine source rocks mainly distributed in the fault basins of the Paleogen in offshore China and Southeast Asia account for 95% and 48% of the total petroleum resources in these areas, respectively. This paper presents the distributing features of seven fault basins' source rocks and their reservoirs in such areas and suggests by correlation that there exist two distinct models of source rock distribution: one is Bohai Bay basin model characterized by deep lacustrine shale of big thickness and wide distribution; the other is Asri-Central Sumatra basin model by shallow lacustrine shale of small thickness and narrow distribution. Based on these, the spatial combination relationship between the source rock distribution and the existing oil-gas fields is analyzed, and the features of source rock distribution and the reservoirs are revealed.

Key words: source rock, fault basin, rifted basin, Paleogene, Central Sumatra basin, Southeast Asia

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