| 摘要: |
| 用挂片法和双锥摆法测定了聚合物溶液/沥青质模拟油体系的界面张力和界面剪切枯度，并对聚合物浓度对 其的影响进行了分析。结果表明，聚合物使沥青质模拟油/模拟水体系的界面张力增加,聚合物的存在会影响沥青 质在界面处的吸附速度和吸附量,导致沥青质界面膜强度降低。聚合物浓度较低时，聚合物溶液/沥青质模拟油体 系的界面剪切粘度低于模拟水/沥青质模拟油体系的界面剪切粘度，聚合物浓度较高时则相反。 |
| 关键词: 沥青质 聚合物 界面张力 界面剪切粘度 |
| DOI： |
| 分类号: |
| 基金项目:国家重点基础研究发展计划资助项目(2005CB221305) |
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| Effect of polymer on interfacial properties of Gudao asphaltene model oil/water |
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LIN Mei-qin, ZHOU Li-juan, LI Ming-yuan, WU Zhao-liang, GUO Ji-xiang
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(Enhanced OH Recovery Research Center in China University of Petroleum, Beijing 07249,China)
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| Abstract: |
| The interfacial tension and interfacial shear viscosity of polymer solution/asphaltene model oil were measured respectively by Wilhelmy method and biconical bob method. The influence of polymer concentration on the interfacial shear viscosity was studied. The results sliuw that the interfacial tension of polymer solulion/asphaltene model oil increases because of the existence of polymer. But the adsorption of asphaltene at interface is affected because of the existence of polymer，which results in the intension declining of asphaltene interfacial structure. When the polymer concentration is lower，the interfacial shear viscosity of polymer solution/asphaltene model oil is leaa than that of sliniulalion water/asphaJtene model oil. When the polymer concentration is higher, the interfacial shear viscosity of polymer solution/asphaltene model oil is more than that of stimulation water/asphaltene model oil. |
| Key words: asphaltene polymer interfacial tension interfacial shear viscosity |
