饶阳凹陷中北部东营组河流相研究

The fluvial facies study of the Dongying Formation in North-Central of Raoyang Sag

根据大量岩心、测井、地震等资料,分析认为饶阳凹陷中北部东营组河流相发育曲流河与辫状河两种类型,各自又划分为若干种亚相和微相。通过对沉积微相研究,揭示了沉积相带对储层物性具有重要控制作用,结果显示河道亚相中的河道充填和心滩坝砂体储集性能最好,是有利的勘探目标。

It is regarded that meandering river sediments and braided river sediments are developed in fluvial facies of Dongying Formation in North-Central of Raoyang Sag primarily by applying the core,logging,and seismic data,and it can be subdivided into several subfacies and microfacies.By studying on the sedimentary microfacies,it is indicated that reservoir characteristic are predominated by Sedimentary facies zone.It is shown that channel fills and river mouth bars possess fairly good reservoir quality,and become to be favorable target for further exploration.