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边际油田是陆相地层 中常见的一种 油田类型，因油 田储量小、油藏 能量低、储层质 量差等不利因 素，使得开发这 类油田遇到许多 困难。近年来发现 辽北及内蒙中生代盆地（上侏罗统） 存在众多陆相低渗、特低渗边际油田 ，马家铺、廖 １ 块和白 ３－ 白 ４ 块 ３ 个低渗、特 低渗油田就是典型代表。本文重 点讨论此类边际油田的储层特征，分 析储层低渗的原因，并总结低渗油 田的油藏动力学特征 ，在此 基础上指出了合理开发边际油田的 对策。
Marginal oilfields are a common type of oilfield in terrestrial formations. Due to the small reserves of oilfields, low reservoir energy, poor reservoir quality and other unfavorable factors, many difficulties have been encountered in the development of such oilfields. In recent years, it has been found that there are many low-permeability and ultra-low permeability marginal fields in the northern Liaoning and Inner Mongolia Mesozoic basins (Upper Jurassic), three low permeability and low permeability Oilfield is a typical representative. This paper focuses on the reservoir characteristics of such marginal oilfields, analyzes the causes of reservoir low permeability, and summarizes the reservoir dynamics characteristics of low permeability oilfields. Based on this, it points out the countermeasures of rational development of marginal oilfields.