摘要
提高CO_(2)的黏度,是改善CO_(2)驱油效果的重要方法之一。为此,以氟丙烯酸酯、醋酸乙烯酯、苯乙烯为单体,通过乳液聚合而生成三元共聚物,并对合成条件进行了优化。此共聚物能够增强CO_(2)的黏度,其与CO_(2)形成的复合体系不仅具有剪切稀释特性,而且能够长期保持稳定,增黏效果在高压环境下最为明显。通过驱替实验,验证了该共聚物与CO_(2)形成的复合体系在提高采收率方面的良好效果。
Increasing the viscosity of CO_(2)is one of the important methods to improve the oil displacement effect of CO_(2).The terpolymer is formed by lotion polymerization with fluoroacrylate,vinyl acetate and styrene as monomers,and the synthesis conditions are optimized.The polymer can increase the viscosity of carbon dioxide.The composite system formed with carbon dioxide not only has shear dilution characteristics,but also can maintain stability for a long time.Its viscosity increasing performance is more obvious under high pressure environment.Through displacement experiment,it is verified that the composite system formed by the copolymer and CO_(2)has a good effect on enhancing oil recovery.
作者
宋保建
李俊
王若浩
魏振国
方舒
包术成
SONG Baojian;LI Jun;WANG Ruohao;WEI Zhenguo;FANG Shu;BAO Shucheng(Sinopec Henan Oilfield Company,Nanyang Henan 473400,China;College of Petroleum and Natural Gas Engineering,Chongqing University of Science and Technology,Chongqing 401331,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2022年第5期1-6,共6页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
“十三五”国家科技重大专项“渤海油田高效采油工程及配套技术示范”(2016ZX05058)
重庆市教育委员会科学技术研究项目“基于核磁共振技术的互穿聚合物网络在多孔介质中的渗流特征研究”(KJQN201901540)
“基于聚集态网络结构的页岩气水基钻井液携砂稳定机理研究”(KJQN201901538)。
关键词
CO_(2)驱油
增稠剂
三元共聚物
提高采收率
carbon dioxide oil displacement
thickening agent
terpolymer
enhanced oil recover
