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综合运用岩心分析、测井、生产测试等静态和动态资料，从多层次、多角度逐级揭示了平方王油田沙四中滩坝沉积特点。从层内非均质、层间非均质、平面非均质这三类储层的宏观非均质性入手，探讨了滩坝相低渗透油藏储层宏观非均质性的地质特征及其对水驱油开发和剩余油形成、分布的控制作用。研究表明，层间非均质和层内非均质主要控制了油层的水淹层厚度及垂向的剩余油分布；平面非均质和层内非均质主要控制了油层的水淹面积和平面剩余油分布。
By comprehensively using the static and dynamic data such as core analysis, well logging and production test, the sedimentary characteristics of the Shahezhongtanba dam in Jinfangwang Oilfield are revealed step by step from multi-level and multi-angle. Based on the macroscopic heterogeneity of three kinds of reservoirs, such as inhomogeneity, inter-strata heterogeneity and plane heterogeneity, the geological characteristics of macroscopic heterogeneity in the reservoirs with low permeability reservoirs are discussed. Its control on the development of water flooding and the formation and distribution of remaining oil. The results show that the inter-strata heterogeneity and in-strata heterogeneity mainly control the thickness of the flooded layer and the vertical residual oil distribution in the reservoir. The planar inhomogeneity and intra-strata heterogeneity mainly control the flooded area and Flat remaining oil distribution.