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以沉积盆地分析、层序地层研究和油气勘探实践中急待解决的古物源体系分析为切入点,以歧口凹陷东营组研究为例,阐述了古物源体系研究的途径、方法与技术路线;初步总结出应用轻-重矿物时空配置关系、地震前积反射结构特征、古地貌恢复与沟谷展布特征、盆地内部骨架砂体形态与时空配置以及盆地边缘及内部层序界面上大型下切谷的空间展布特征,即“五位合一”法来判断沉积盆地的古物源体系.该分析方法可为同领域的研究提供借鉴作用.
Based on the analysis of sedimentary basin analysis, sequence stratigraphy and the analysis of ancient source systems to be solved urgently in oil and gas exploration practice, taking the study of Dongying Formation in Qikou Depression as an example, the ways, methods and technical routes for the study of ancient source systems are expounded. It is concluded that the relationship between space-time configuration of light-heavy minerals, pre-seismic structural features, palaeogeomorphology restoration and distribution of valleys, the shape and distribution of skeletons in the basin and the large undercut valleys at the boundary and internal sequence boundaries of the basin Spatial distribution feature, that is “five in one” method to judge the sedimentary basin of ancient source system.The analysis method can provide reference for the study of the same field.