曲流河废弃河道的识别方法及其应用

Identification and application of abandoned channel in meander river

基于废弃河道的成因模式,通过岩电关系分析,建立了废弃河道的测井曲线识别模式,形成废弃河道的平面组合方法.该方法对复合砂体点坝识别、单砂体内部建筑结构等储层非均质性研究有重要作用.分析了废弃河道对河道砂体内部连通关系的影响,在河道内部剩余油挖潜过程中取得了较好的措施效果.

On the basis of their lithologic and electric log characters, together with genetic type of abandoned channel, we have developed the logging model micro-facies and the method for identification and area grouping of abandoned channel. It has been applied to identification of the point bar and fractal properties of the internal architecture of individual sand body, and it was helpful to analyze the connection inside channel sand body and make well affection in exploiting residual oil inside the channel.