交联聚合物溶液蠕变回复效应及对驱油效率影响  

THE CREEPING REVERSION EFFECT OF LINKED POLYMER SOLUTION IN POROUS MEDIUM AND ITS INFLUENCE ON DISPLACEMENT EFFICIENCY

作　　者：罗宪波[1] 蒲万芬[1] 武海燕[2] 赵金洲[3] 

机构地区：[1]西南石油学院石油工程学院,四川成都610500 [2]西南石油学院资源与环境学院 [3]西南石油学院研究生院

出　　处：《西南石油学院学报》2004年第6期57-59,共3页Journal of Southwest Petroleum Institute

摘　　要：进行了交联聚合物溶液在多孔介质中的流动试验 ,观察到交联聚合物溶液的蠕变回复现象 ,说明交联聚合物溶液在多孔介质中产生了粘弹效应。通过交联聚合物溶液变流速 (6 7,16 1,6 7cm/d)与恒速 (6 7cm/d)驱油时 ,即存在蠕变回复效应和无蠕变回复效应驱油 ,考察交联聚合物溶液蠕变回复效应对驱油效率的影响 ,结果表明 ,在本实验条件下 ,蠕变回复效应能增加原油采收率 1.5 %。In this paper, experimental investigation on linked polymer solution has been conducted with a sand packing model and the phenomenon of the creeping reversion in porous medium has been observed, which can explain the viscoelastic effect of linked polymer solution. The effect of creeping reversion of linked polymer solution in porous medium on the displacement efficiency has been analyzed with two sand packing models by the change of flow rate (67,161,67cm/d) and a stable flow rate (67cm/d), namely, under the condition of creeping reversion and no creeping reversion effect. Results indicate that the creeping reversion of linked polymer solution could increase oil recovery by 1.5 percent in the experimentation condition.

关 键 词：交联聚合物溶液 聚丙烯酰胺 多孔介质 蠕变回复 粘弹性 提高采收率 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]