高弯度曲流河沉积体系特征及点坝砂体内部建筑结构分析

Sedimentary System Characteristics of the Sinuosity Meandering River and Internal Architecture Analysis of Point Bar

点坝砂体作为曲流河沉积体系中的砂体骨架部分,其独特的沉积作用导致砂体内部非均质性极其严重。在对渤海盆地高弯度曲流河各微相特征分析的基础上,进一步解剖了点坝砂体内部建筑结构,并总结出了一套研究方法。针对点坝砂体的特点,提出了通过水平井技术提高剩余油挖潜的措施。

As the framework of sandbody in the meandering fiver sedimentary system,point bar sandbody results in internal heterogeneity extremely serious because of its unique deposition.On the basis of the microfacies analysis of the high-sinuosity meandering fiver in Bohai Basin,the article anatomized the internal structure of point bar sandbody in detail, and summarized a set of research methods. For characteristics of point bar sandbody, it proposed measures to improving potential production of remaining oil by horizontal well technology.