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苏北盆地高邮凹陷油气输导特征及油气分布
石油与天然气地质
2008年 29卷 第No.4期
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Title
Features of carrier beds and distribution of oil and gas in the Gaoyou Sag,the Subei Basin
摘要
通过对高邮凹陷3套烃源岩的分布和与围岩接触关系的分析,认为直接与烃源岩接触的戴一段下部砂岩、阜一段上部砂岩和泰一段上部砂岩为主要的砂岩输导层。凹陷内复杂的断裂体系与砂岩输导层构成了立体输导网络,在立体输导网络中可以区分多种不同的输导方式。这些输导体系类型决定了凹陷内油气的分布特点。
Abstract
Analysis of the distribution of three sets of source rocks and their contact relationship with surrounding rocks in Gaoyou sag reveals that the lower part of the first member of the Dainan Formation,the upper parts of the first member of the Funing Formation and the first member of the Taizhou Formation,are the main hydrocarbon carrier beds.The complicated fault systems in combination with sandstone carrier beds form a three dimensional hydrocarbon carrier network,which can be classified into many types according to different carrier modes. The types of these carrier systems decide the distribution of hydrocarbons in the sag.
关键词：
复杂断裂体系;
砂岩输导层;
立体输导网络;
输导体系类型;
油气分布;
苏北盆地;
Keywords:
complicated fault system;
sandstone carrier bed;
three dimensional carrier network;
type of carrier system;
oil and gas distribution;
Subei Basin;
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