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义东断裂带沙河街组的砂砾岩体油藏是沾化凹陷内重要的勘探类型,但因地震反射杂乱,制约了勘探进程。在综合分析义东断裂带的构造、沉积、岩相的基础上,结合砂砾岩的二维地震反射特征,认为该区砂砾岩体可划分为四期,以多期堆砌、无序沉积的小型近岸水下扇为主,地震反射多为空白或断续中弱反射。
The glutenite reservoir of Shahejie Formation in Yidong fault zone is an important type of exploration in Zhanhua sag, but due to the disorder of seismic reflection, the exploration process is restricted. Based on the comprehensive analysis of the structures, sediments and lithofacies of Yandong fault zone, combined with the two-dimensional seismic reflection characteristics of glutenite, it is considered that the glutenite body in this area can be divided into four phases, Mainly offshore submarine fan, seismic reflection mostly blank or intermittent in the weak reflection.