徐家围子断陷兴城地区营四段储层沉积特征研究

Research on reservoir depositional character of Xujiaweizi fault depression forth fragment of Yingcheng formation in Xingcheng development region

在对该区构造演化和沉积背景认识的基础上,经过对岩心的细致观察和描述,对岩性进行成因解释,综合利用测井、资料,对徐家围子断陷兴城开发区营城组四段地层沉积体系类型、特征及沉积体系的沉积演化规律进行分析。确定该区为扇三角洲-湖泊沉积体系,建立了相应的沉积模式,并对沉积相带与油气关系进行了分析。

Based on recognization of structure evolution and sedimentary ground,in this region by observing and describing carefully on cores,using contemporary sedimentology and logging seismic date synthetically,this article analyzed the type and character of depositional system and time-space evolution rule of depositional system about Xu jia wei zi fault depression Xingcheng development region and confirmed that this region is fan delta-lake depositional system,then set relevant depositional model to analyze and elaborate relation between sedimentary fancies band and oil-gas.