摘要
埕岛油田东部斜坡带下第三系油藏以三角洲、浊积扇砂体隐蔽油气藏为主,储层埋藏深、厚度变化大,油气成藏复杂。通过对该带的沉积特征、沉积体系和沉积物源的研究,指出其东下段砂体的分布主要受物源和沉积相带两方面控制,砂体只有在有效圈闭情况下才能成藏,并且从构造上总结了三种油藏类型。最后指出该带下一步勘探重点是沿主物源方向展布的、成藏条件良好的各种砂体。
The delta and turbidite fan sand subtle reservoirs with deep burial depth, large variable thickness, and complicated oil-gas reservoir forming are taken as the dominant factor in Eogene oil reservoir in the eastern slope belt of Chengdao oilfield. Through the study of the sedimentary characteristics, system and source of the belt, it presents that the distribution of its lower Ed sandbody is mainly controlled by the source and sedimentary fa-cies belt, and oil reservoir can only be formed in effective trap. Thus three reservoir types are summarized on structures. Finally it points out that the exploration next will focus on all kinds of sands which spread along the main source and possess better reservoir forming conditions.
出处
《油气地质与采收率》
CAS
CSCD
2003年第4期26-28,共3页
Petroleum Geology and Recovery Efficiency
关键词
埕岛油田
东部地区
斜坡带
东下段
沉积特征
油藏类型
沉积构造
沉积体系
粒度结构
储层
sedimentary characteristics, grain size structure, sedimentary structure, sedimentary system, oil reservoir type, Chengdao oilfield
