新型驱油用聚合物与原油相互作用机理研究  

Research on Interaction Between New Polymer for EOR and Crude Oil

作　　者：胡秋平[1] 

机构地区：[1]中国石化胜利油田分公司采油工艺研究院,东营257000

出　　处：《精细石油化工进展》2012年第2期23-25,共3页Advances in Fine Petrochemicals

摘　　要：为了深入认识室内研制的新型驱油用聚合物的洗油作用,利用计算机模拟技术研究了该聚合物与原油的相互作用机理。结果表明,新型聚合物具有自组装功能,空间网状结构是逐渐形成的,将"油滴"包裹住,再分散在水相中。新型聚合物在岩石表面的吸附能远大于孤岛油田重质原油在岩石表面的吸附能,可将原油从岩石表面置换,使其变为可动油。室内研究也证实新型聚合物与原油间存在相互作用,形成的混相体系稳定性良好。In order to understand the oil flushing effect of a laboratory - developed new polymer for EOR, the mechanism of the interaction of this polymer with crude oil was studied with computer simulation tech- nique. According to the result, this new polymer has self-packaging function, and its spatial mesh structure is formed gradually during which ＂ oil droplets＂ are wrapped up and then dispersed in water phase. The adsorption energy on rock surface of the new polymer is much higher than that of the heavy crude oil of Gudao Oilfield, and therefore this new polymer can replace the crude oil on rock surface and make it movable oil. Laboratory study shows as well that an interaction exits between the new polymer and crude oil and that the mixture system of the polymer and crude oil is very stable.

关 键 词：改性聚丙烯酰胺 机理 提高采收率 相互作用 分子模拟 

分 类 号：TE39[石油与天然气工程—油气田开发工程]