两性离子型聚合物调驱体系与中低渗储层的适应性研究  

Research on the Adaptability of Amphoteric Polymer System in Middle-Low Permeability Reservoirs

作　　者：王亚楠[1] 关明阳 滕玥 WANG Ya-nan;GUAN Ming-yang;TENG Yue(Key Laboratory of Enhance Oil and Gas Recovery of Education Ministry,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学提高采收率国家重点实验室,大庆163318

出　　处：《当代化工》2022年第1期47-50,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金,非均质中低渗透油藏凝胶调驱井区筛选方法研究与应用(项目编号:51874096);黑龙江省自然科学基金,中低渗透油藏调驱区块筛选方法研究与应用(项目编号:E2018016)。

摘　　要：为了评价两性离子型聚合物调驱体系在葡北油田中低渗储层的注入性、封堵性以及选择性封堵能力,模拟葡北油田油藏条件,利用单管均质岩心注入实验测定两性离子型聚合物调驱体系在不同渗透率岩心中的阻力系数、残余阻力系数和封堵率,利用三管均质岩心并联实验测定高-中-低渗各层的分流率。结果表明:该调驱体系在渗透率小于0.1μm^(2)的储层中注入性和流动性较差,在200~500 mD的储层中可实现边调边驱,在非均质性较强储层中的选择性封堵能力较好。In order to evaluate the injectivity,sealing characteristics and selective plugging ability of amphoteric polymer system in Pubei oilfield with middle-low permeability reservoir, many experiments were carried out under the condition of Pubei oilfield.Rock factor, residual resistance factor and blocking rate were determined by using single-tube homogeneous cores with different permeability. Flow rate of each permeability layer was determined by using three-pipe parallel homogeneous cores. The results showed that injectivity and fluidity of the system were poor in the layer whose permeability was less than 0.1μm^(2);The system could modify profile while flooding in the layer which permeability was between 200 m D and 500 m D;Selective plugging ability of the system was well in high heterogeneous reservoir.

关 键 词：两性离子型聚合物 深部调驱 中低渗储层 葡北油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]