摘要
岩性油气藏成藏机理是石油地质学研究的重要课题 ,迄今为止 ,油气成藏动力机制、运聚机理等问题一直没有完全解决。文中以营 11岩性油气藏为例 ,分析了透镜状岩性油气藏的成藏特征。良好的油源条件、独特的输导体系和成藏动力是控制东营凹陷岩性油气藏成藏的主要因素。提出了地层压差成藏模式。在地层压差作用下 ,油气不断进入砂体 ,同时由于岩石的润湿性 ,砂体中的水不断从顶部排出 ,直至压力趋于平衡。
As a major topic in petroleum geology, the mechanism of hydrocarbon migration and accumulation for lithologic reservoir has not been completely understood. As a study case, the hydrocarbon accumulation characteristics are analyzed in Ying11 reservoir. For Dongying depression, the main factors to control hydrocarbon accumulation in lithologic reservoirs are good source rocks, special carriers and pathways and adequate accumulation dynamic. A differential pressure model of hydrocarbon accumulation is presented in this paper. Under a differential pressure, hydrocarbon can continuously go into sandbodies, and the water in sandbodies is continuously expelled from the top of reservoir due to its wettability, until establishing the final pressure equilibrium.
出处
《中国海上油气（工程）》
2004年第2期89-92,共4页
China Offshore Oil and Gas
基金
国家"十五"攻关项目"济阳坳陷复杂隐蔽油气藏地质评价和关键技术研究"(编号 :2 0 0 1BA60 5A0 9)资助成果
关键词
东营凹陷
油气藏
成藏特征
砂岩透镜体
成藏模式
地层压力
背斜
油质
压力系数
Ying11 lithologic reservoir
sand lens
hydrocarbon accumulation characteristics
accumulation model
differential pressure
