在我国 ,低渗透油藏的储量比重越来越大 ,如何改善其开发效果显得日益重要。本文从低渗透油藏的渗流机理出发 ,从开发中存在的主要问题着手 ,探讨了改善其开发效果的主要方法 :细分开发系、加密井网、压裂改造、合理部署井网等。并针对这些方法在文南油田的具体应用取得的不错效果进行了分析 ,从而说明这些方法在低渗透油藏开发中具有很高的推广价值 In our country, the proportion of reserves of low permeability reservoirs is increasing, and how to improve its development effect is increasingly important. Based on the seepage mechanism of low permeability reservoirs, this paper starts with the main problems in development and discusses the main methods to improve its development effect. It includes subdivision development system, infill well pattern, fracturing reformation and rational deployment of well pattern. The good results of these methods in the application of Wennan Oilfield are analyzed, which shows that these methods have a very high value in the development of low permeability reservoirs