胜利油区的低渗透油藏多数开发单元小层数比较多,采用一套层系开发,层间矛盾突出,开采效果差,需要细分层系开发进一步提高开发效果,而层系细分的首要工作就是确定影响开发效果的主要因素.本文通过建立概念模型,利用正交设计并结合方差分析方法,确定了低渗透油藏影响开发效果的显著性因素为平均粘度、平均渗透率、渗透率级差以及粘度级差;同时利用级差分析方法分析了上述显著性因素对开发指标的影响程度.研究表明,渗透率级差对开发指标的影响程度最大.%The number of subzone in majority development unit of low permeability reservoir in Shengli oil field is more. If using a set of system in the development, the contradiction between layers is obvious and development effect is poor. In order to further improve the development effect, subdivision of series of strata development need be carried out. The main task of the subdivision of strata series is to determine the main factors affecting the development. In this paper, through building conceptual model, by orthogonal design and variance analysis, the factors affecting the development effect of low permeability reservoir were determined as follows:average viscosity, average permeability, permeability ratio and viscosity ratio. Moreover, the influence degree of the above factors on the development index was analyzed by the range analysis method. The results showed that the influence degree of permeability ratio on the development index was the largest.
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