两亲性高分子聚合物提高原油采收率的研究  

Study on enhanced oil recovery by amphiphilic polymers

作　　者：荣光辉 陈章顺[2] 王舸[2] 刘毅[3] 陈立[2] 张智博 RONG Guanghui;CHEN Zhangshun;WANG Ge;LIU Yi;CHEN Li;ZHANG Zhibo(No.12 Oil Production Plant,Changqing Oilfield Company,CNPC,Xi’an 710021,China;No.6 Oil Production Plant,Changqing Oilfield Company,CNPC,Xi’an 710021,China;No.1 Oil Production Plant,Changqing Oilfield Company,CNPC,Yan’an 716000,China;No.7 Oil Production Plant,Changqing Oilfield Company,CNPC,Xi’an 710021,China)

机构地区：[1]中国石油长庆油田分公司第十二采油厂,陕西西安710021 [2]中国石油长庆油田分公司第六采油厂,陕西西安710021 [3]中国石油长庆油田分公司第一采油厂,陕西延安716000 [4]中国石油长庆油田分公司第七采油厂,陕西西安710021

出　　处：《能源化工》2022年第3期21-24,共4页Energy Chemical Industry

摘　　要：两亲性高分子聚合物溶于水后会自动聚集成大胶束,在水溶液中具有明显的增稠能力,在提高原油采收率方面应用潜力较大。以聚苯乙烯-聚甲基丙烯酸两亲性高分子聚合物为研究对象,对流变性、滤失性和乳化性进行了研究,评价了其对提高采收率的影响。结果表明:与水解聚丙烯酰胺(HPAM)相比,两亲性高分子聚合物的分子量较小,但在高盐度下、同等质量浓度和剪切黏度条件下的采收率要高。同时考察了盐度和乳化性能对聚合物性能的影响,结果表明:该类型聚合物驱油机理不同于传统的聚合物驱油机理,驱油效果优于传统的聚合物驱油效果,具有较好的应用前景。Amphiphilic polymers will automatically aggregate into large micelles after being dissolved in water.They have obvious thickening ability in aqueous solution and great application potential in enhanced oil recovery(EOR).Taking polystyrenepolymethacrylic acid amphiphilic polymers as the research object,the convective denaturation,filtration and emulsification are studied,and their effect on EOR is evaluated.The results show that the molecular weight of amphiphilic polymers is smaller than that of HPAM,but the recovery efficiency is higher at the same mass concentration and shear viscosity under high salinity.At the same time,the effects of salinity and emulsifying performance on polymer performance are investigated.The results show that the oil displacement mechanism of this type of polymers is different from that of traditional polymers,and the oil displacement effect is better than that of traditional polymers,which have a good application prospect.

关 键 词：聚合物驱 高分子 两亲性聚合物 提高采收率 高盐 

分 类 号：TE357.461[石油与天然气工程—油气田开发工程]