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广利油田主要勘探层系为沙四上亚段,由于本区的薄互层砂体主要发育在纯沙四上深部层系,因此把纯上5、6砂组和纯下1砂组作为本次研究的重点目的层位。通过多种物源判别技术和方法,得出广利油田沙四上亚段的沉积受控于东北部青坨子凸起和南部鲁西隆起两个物源区。通过对广利油田沙四上亚段的地层、岩性、粒度、原生沉积构造等特征的分析,认为该区发育滨浅湖滩坝和曲流河三角洲这两种沉积相类型,并建立了相应的沉积模式。
The main exploration zone of Guangli Oilfield is the Upper Es4 in the Shasi Formation. Because the thin interbedded sand bodies in this area are mainly developed in the deep layer of pure sand four, the pure upper 5,6 sand group and the pure lower 1 sand group are taken as The main purpose of this study horizon. Based on a variety of provenance techniques and methods, it is concluded that the sediments of the Upper Sha4 in the Guangli Oilfield are controlled by two source areas, Qingtuozi Protuberance in the northeast and Luxi Uplift in the south. Based on the analysis of stratigraphy, lithology, grain size and primary sedimentary structure of the Upper Shasi Formation in Guangli Oilfield, it is considered that there are two types of sedimentary facies such as shallow-lying beach dam and meandering delta. The corresponding deposition mode.