胜坨油田二区东三段微型构造与剩余油分布

根据钻井、测井资料,直接采用精细解剖法对胜坨油田二区东三段储层进行了微型构造研究.结果表明:该区主要发育小鼻状构造以及与之伴生的小凹槽构造和小高点构造,且大部分具继承性,靠近断层的微型构造的形成与断层及其发展演化有着密切的关系.微型构造影响着储层的含油饱和度、综合含水率,对剩余油的分布具有控制作用,在宏观构造背景控制下,微型构造高部位是剩余油富集的有利地区.

A Study on the Relationship between Micro- tectonics and Distribution of Remaining Oil in the Third Member of Dongying Formation of the Second Region in Shengtuo Oilfield

For micro tectonics are important to remaining oil distribution, the paper applies fine traditional analysis to study micro tectonics of reservoirs in the third member of Dongying formation of the second region in the Shengtuo oilfield The result shows that there mainly develops small nose like structure and associated small high place structure and small flute structure, most of which are inherited ones, and that, the formation of the micro tectonics near to faults has close relation with faults and their evolvement Finally, the paper shows that micro tectonics affect the oil saturation and the ratio of water of reservoirs, controlling distribution of the remaining oil, and at the background of macro tectonics, the remaining oil correspondingly enriches in the high places of micro tectonics