Abstract: The interior aquifuges and faults in buried hills are the main factors that control the distribution of remaining oil.Comprehensively applying seismology, geology,log and development behavior of reservoir,the classifying standard for aquifuges was defined.The relative aquifuges were classified into four types,and a synthetic evaluating was made for all the aquifuges.The roles of aquifuges playing in reservoir development behavior were analysised.The relation between the distribution of aquifuges and remaining oil was studied. According to the combination of the interior aquifuges and faults in three dimension,the pattern of remaining oil was classified into three main types and six subtypes.Finally,the favorite potential regions and intervals of remaining oil in buried hill were predicted.

Key words: buried hill reservoir, carbonate rocks, relative aquifuges, interior fault, remaining oil, Renqiu Oilfield

摘要： 潜山内幕的隔层和断层是剩余油分布的重要控制因素。通过综合利用地质、地震、测井、开发动态等资料,确定出了隔层的划分标准,定量的将研究区内隔层划分为四类,并进行了综合评价。分析了隔层在油藏开发动态上的反映,研究了隔层和剩余油分布的关系。根据断层和潜山内幕隔层的空间组合关系,将剩余油分布模型划分为三大类六亚类,最后预测出潜山内部有利的剩余油分布区块和层段。

关键词: 潜山油藏, 碳酸盐岩, 相对隔层, 内幕断层, 剩余油, 任丘油田