文东沙三中低渗油藏剩余油成因及分布

Distribution rules of the remaining oil in the low permeable reservoir of ES3 middle in Wendong oilfield

充分应用油藏精细描述成果,通过对文东沙三中低渗油藏微观孔隙结构、渗流特征、室内实验的研究探索微观剩余油的形成机理,通过储层宏观非均质性研究并结合动态研究详细分析了文东沙三中低渗油藏宏观剩余油的成因,为研究剩余油分布规律提供了重要依据,结合油藏数值模拟结果对剩余油进行了分类总结。

Using fine reservoir description result, this paper performs a lab experiment for the micro- pore structure and flow characteristic of Wendong ES3 middle low permeable reservoir to discuss the formation mechanism of the micro- remaining oil. By studying the macro- heterogeneity of the reservoir and combining with dynamic research,it analyzes the genesis of the macro- remaining oil of Wendong ES3 middle low permeable reservoir.This provides evidence for the study on remaining oil distribution rules.It also makes a classification summary for remaining oil using the numerical simulation result.