桩海地区油气成藏系统分析

PETROLEUM GEOLOGY AND RECOVERY EFFICIENCY(2003)

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Abstract
桩海地区第三系可划分为四个层序,含油层系主要分布在层序Ⅲ、Ⅳ界面及层序Ⅰ界面上下.受区内生油凹陷及断层控制,油藏类型分布具有分割性:西部油藏主要受岩性及地层控制,东部则以构造及地层油藏为主.自西向东,含油层系逐渐增多,含油层位由浅变深,原油性质也呈规律性变化.气藏的分布受油源条件和饱和压力控制,明化镇组、馆陶组不会形成大规模气藏.
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