实验室自制聚合物微球性能以及驱油封堵效果评价  

Evaluation of Performance and Oil Displacement Plugging Effect of Polymer Microspheres Made in Laboratory

作　　者：周彦霞[1] 詹兆海 杨柳 肖丽华 张云宝[1] 吕鹏 蒋志伟 丁亚慧 杜俊辉 ZHOU Yan-xia;ZHAN Zhao-hai;YANG liu;XIAO Li-hua;ZHANG Yun-bao;LYU Peng;JIANG Zhi-weil;DING Ya-hui;DU Jun-hui(Key Laboratory of Enhanced Oil and Gas Recovery,Ministry of Education(Northeast Petroleum University),Daqing Heilongjiang 163318,China;Tianjin Branch of CNOOC(China)Co.,Ltd.,Tianjin 300452,China;China National Offshore Oil(China)Co.,Ltd.Zhanjiang Branch,Guangdong 524000,China)

机构地区：[1]提高油气采收率教育部重点实验室(东北石油大学),黑龙江大庆163318 [2]中海石油(中国)有限公司天津分公司,天津300452 [3]中海石油(中国)有限公司湛江分公司,广东湛江524000

出　　处：《当代化工》2022年第12期2916-2920,2946,共6页Contemporary Chemical Industry

基　　金：黑龙江省自然科学基金,基于析蜡行为特性的含蜡原油宽相变界面传热机理研究(项目编号:LH2020E17)资助;第五批“海洋石油高效开发国家重点实验室开放基金”(项目编号:CCL2021RCPS0517KQN)资助。

摘　　要：聚合物微球作为一种分散型调驱体系,其具有注入性好、成本低、配液方便、耐温耐盐性强等优点,被广泛应用于油田现场的生产作业中。但由于不同油田和储层区块的差异的影响,室内实验结果与现场实际生产结果存在差异一直是难以解决的问题。以实验室自制聚合物微球为研究对象,开展了膨胀性能、封堵性能、传输运移能力及驱油效果评价。实验结果表明:微球可在10 d内膨胀35倍,同时具有良好的注入性、封堵性及增油提采效果,岩心实验采收率增幅可达7.12%。As a dispersive tunable driving system, polymeric microspheres have been widely used in production operations on the field site of oil fields due to their advantages such as good injection, low cost, convenient fluid distribution and salt tolerance. However, it has been difficult to solve the problems that the indoor experimental results differ from the real-world production results in the field due to the influence of differences in different oil fields and reservoir blocks. In this paper, taking laboratory-made polymer microspheres as research object, the evaluation of swelling performance, blocking performance, transport and transfer ability, and oil driving effect of the polymer microspheres was carried out. The experimental results showed that the microspheres could expand up to 35 times within 10 d, and at the same time, they had good injectability, plugging property and oil extraction efficiency, while the recovery increasing value of core experiment was 7.12%.

关 键 词：聚合物微球 性能评价 注入性 封堵性 驱油效果 

分 类 号：TE39[石油与天然气工程—油气田开发工程]