渤海湾盆地新北油田油气成藏主控因素分析

基于现有地质、地球物理及地球化学资料,对新北油田新近系馆陶组石油地质条件进行综合研究,系统分析了已发现的油气藏成藏特征及其分布规律,提出了新北油田油气藏形成与分布的主控因素:新北油田油气藏类型主要为构造背景上的岩性油气藏,油气成藏与分布受构造和岩性双重因素控制。宏观上,沟梁相间的构造格局控制油气的整体运聚特征,河道砂体的发育使油气运聚路径复杂化。微观上,断鼻构造高带控制油气聚集成藏,断裂的发育制约着断鼻构造油气的富集;河道砂体影响断鼻构造内部油气的运移与富集,同一断鼻构造带上储集砂体的发育控制油气的富集分布。

The controlling factors of petroleum accumulation in Xinbei oilfield,Bohai Bay Basin

This paper analyzes the conditions of petroleum geology in Neogene Guantao formation of Xinbei oilfield based on available geological,geophysical and geochemical data. The controlling factors of petroleum accumulation and distribution are proposed after intensive study of the characteristics and distribution law of proved petroleum reservoirs. Lithologic petroleum reservoirs with profitable structural settings dominate the type of reservoirs in this oilfield,and the formation and distribution of reservoirs ...