配液水的组成对聚合物——表面活性齐二元复合驱体系性能的影响  

Effect of composition of liquid-preparing water on performance of polymer-surfactant binary compound flooding system

作　　者：刘蕾[1,2] 武平仓[1,2] 王丽莉[1,2] 范伟[1,2] 杜朝锋[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院 [2]低渗透油气田勘探开发国家工程实验室

出　　处：《低渗透油气田》2016年第1期159-162,共4页

摘　　要：针对马岭北三区的地质特征和流体性质，考察了配液水的组成对二元复合驱体系性能的影响结果表明，配液水组成对二元复合驱体系黏度影响较大，其中钙镁离子是影响溶液黏度的主要因素，钙镁离子含量越高，聚合物溶液黏度越低不同配液水对表面活性剂降低油水界面张力的能力影响较小。对于北三区试验区，实验优选出最佳的聚合物一表面活性剂二元复合驱体系配制用水是脱钙镁水。The influenee nf composition of the liquid-preparing water on performance of polymer-surfaetant binary compound flooding system is investigated in the light of the geologieal characteristics and fluid properties of the North No. 3 District of Malting Oilfield. The results showed that the influence of composition of the liquid-preparing water on the viscosity of the binary compound flooding system is great, in which the caleinm and magnesium ions are main factors that affeet the viscosity of the solution. The higher the Ca2＋ and Mg2＋ cation contents are, the lower the viscosity of the polymer solution is. Different liquid-preparing water has a minor effeet on the performance of the surfactant reducing the oil-water interfaeial tension. For the pilot area of the North No. 3 District, the optimum water for preparing the polymer-surfactant binary compound flooding system selected via the experiment is the softened （decalcified and magnesium-removed） water.

关 键 词：二元复合驱体系 聚合物 表面活性剂 黏度 界面张力 

分 类 号：TE357[石油与天然气工程—油气田开发工程]