西安石油大学学报（自然科学版）2018，Vol.33Issue(3)：69-74,6.DOI:10.3969/j.issn.1673-064X.2018.03.011
双河油田聚合物驱后微观剩余油分布特征
Microscopic Distribution Characteristics of Residual Oil after Polymer Flooding in Shuanghe Oilfield
摘要
Abstract
In order to further understand the microscopic distribution characteristics of remaining oil in reservoir after polymer flooding, the microscopic oil displacement simulation models were made based on the cast thin slices of natural cores from Shuanghe oilfield.The microscopic distribution characteristics of remaining oil in the models with different permeability after water flooding and after polymer flooding were studied by microscopic model oil displacement experiments and picture analysis method.The results show that,after water flooding,most of the remaining oil exists in the forms of cluster and column,and only a small portion of the remaining oil exists in the forms of film,island and blind end /corner;polymer flooding has different displacement effects on the residual oil distributed in various forms,but it has better displacement effect on the remaining oil distributed in the forms of cluster,blind end /corner;after polymer flooding,the remaining oil also distributes mainly in the forms of cluster and column,and the proportion of the remaining oil distributed in the forms of film and island increases.关键词
聚合物驱/剩余油分布特征/微观仿真模型/驱油实验/双河油田Key words
polymer flooding/remaining oil distribution characteristic/microscopic simulation model/oil displacement experiment/Shuanghe oilfield分类
能源科技引用本文复制引用
李洪生..双河油田聚合物驱后微观剩余油分布特征[J].西安石油大学学报（自然科学版）,2018,33(3):69-74,6.基金项目
中国石油化工股份有限公司重大科技专项"聚合物驱后油藏水驱提高采收率技术"(P16055) （P16055）
