王改卫;杜晓峰;黄晓波;涂丹凤;王志萍;

• 1:中海石油(中国)有限公司天津分公司渤海石油研究院

摘要(Abstract)：

为落实渤中21构造东二下段岩性圈闭类型及规模、储量规模,在对渤中21构造区古地貌背景和沉积体系演化模式的耦合分析基础上,通过井震标定、精细地震追踪、宏观地震相组合及多属性分析,与渤海已钻探典型湖底扇特征进行对比。结果表明:气层段为湖底扇型岩性圈闭。渤海湖底扇从成因机制上分为与早期继承性发育坡折带,以及与大型三角洲建造形成的同沉积坡折带密切相关的2种类型。渤中21构造区湖底扇成因与大型三角洲建造形成的同沉积坡折带相关。在成因模式指导下,通过对湖底扇沉积厚度、地震微相特征分析,用地震岩相正演模拟方法对湖底扇富砂区范围进行圈定,落实湖底扇岩性圈闭边界,为渤中21构造区储量计算和勘探评价提供依据,为开展隐蔽油气藏勘探提供有利目标。

关键词(KeyWords)：渤中21构造区;东二下段;坡折带;湖底扇;隐蔽油气藏;勘探潜力

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2016ZX05024-003)

作者(Author):王改卫;杜晓峰;黄晓波;涂丹凤;王志萍;

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