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从岩性、物性、孔隙结构、砂体展布等方面。详细讨论了孤东油田上第三系馆陶组不同沉积微相的非均质性，并结合油田开发特征，建立了辫状河心滩、曲流河边滩、河道充填及河道边缘４类主要储层的非均质模式，其中心滩、边滩砂体属中等非均质性储层，是油田开发最有利的油层；河道充填砂体属中偏强非均质性储层，是油田开发较有利的油层；河道边缘砂体则属较强的非均质性储层，属较差油层。
From lithology, physical properties, pore structure, distribution of sand body and so on. The heterogeneity of different sedimentary microfacies in Guantao Formation of Gudong Formation in Gudong Oilfield is discussed in detail. Based on the characteristics of oilfield development, braided river heartland, meandering riverside beach, river filling and the edge of the river are established The main reservoir heterogeneity pattern is that the center beach and the side beach sandstone are medium-heterogeneous reservoirs, which are the most favorable oil reservoirs for oilfield development. The channel sand body is a medium-strong heterogeneity reservoir and is Oilfield development more favorable reservoir; river margin sand body is a strong heterogeneous reservoir, is a poor reservoir.