三元复合驱用缔合聚合物浓度检测方法优选  

ASP flooding with associating polymer concentration measurement optimization

作　　者：高飞龙[1] 郭拥军[2,1] 周竞达 梁严[1] 宋汝彤 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]"油气藏地质及开发工程"国家重点实验室西南石油大学,四川成都610500

出　　处：《应用化工》2014年第4期738-742,共5页Applied Chemical Industry

基　　金：国家科技重大专项(2011ZX05011-004)

摘　　要：考察了淀粉-碘化镉法、浊度法、紫外分光光度法对于三元复合驱中疏水缔合聚合物AP-C1进行浓度检测的现场适应性和有效性。结果显示,从准确度来看,测试三元复合驱体系中缔合聚合物浓度最优的方法是淀粉-碘化镉法,其次是浊度法,紫外光谱法相对误差较大。碱浓度对于淀粉-碘化镉法和浊度法的影响较大,表面活性剂浓度的影响较小。虽然淀粉-碘化镉法测定三元复合体系中缔合聚合物浓度相对误差小,应用广泛,但是此方法操作过程相对复杂,反应条件不易掌握,测量时容易引入人为误差,重复性较难以保证,考虑到浊度法操作简单方便,相对误差在可接受范围内,所以对于现场实际条件下,建议采用浊度法进行检测。Examining the starch-cadmium iodide method,turbidimetric method and spectrophotometry for ASP flooding in the hydrophobic associating polymer AP-C1 is used to detect the concentration of the adaptability and validity. The result showed that the optimal way to detect the concentration of associating polymer in ternary compound system goes to starch-cadmium iodine method,followed by turbidimetric method in the standpoint of the degree of accuracy. UV spectrophotometry has a bigger error than the other two methods. Starch-cadmium iodine method and turbidimetric method are greatly affected by the concentration of alkali and the concentration of surfactant has a less impact. Although detecting the concentration of associating polymer in ternary compound system employing starch-cadmium iodine method can get the smallest relative error and the method is also get the most widely used,the operation process of this method is comparatively complicated and the reaction condition is hard to master,it can easily bring human error in measurement and it＇s difficult to ensure the repeatability. Turbidimetric method is suggested to be used for the filed conditions considering it＇s convenient to carry on and the relative error is in an acceptable range.

关 键 词：三元复合驱 缔合聚合物 浓度检测 淀粉-碘化镉法 浊度法 

分 类 号：TQ423.11[化学工程]