水包稠油乳状液界面性质实验分析
Experimental Analysis of the Interfacial Properties of Water-in-Heavy Oil Emulsions

针对水包稠油乳状液的界面性质，开展油水界面研究对于水包稠油型乳状液稳定性研究是重要的研究手段之一。本论文首先对稠油进行了稠油四组分分析，然后确定了油品A的密度和粘度的特性，并确定了模型。选取了两种不同的表面活性剂OP-10和TX-100，开展了油水界面乳化性质的影响因素分析。分析结果表明：当两种表面活性剂的浓度在一定范围内变化时，它们的界面张力大小不同，但是呈现着一样的规律，随着表面活性剂含量的增多，油水界面张力下降，水包油型乳状液的稳定性增加。当频率一定时，随着表面活性剂浓度的增加，油水界面膜的扩张模量增大，当浓度达到一定值时，活性剂间发生蒂合，形成聚合物，降低了油水界面膜的强度，扩张模量减小。
Aiming at the interfacial properties of water-in-heavy oil emulsions, conducting oil-water interface research is one of the important research methods for the stability of water-in-heavy oil emulsions. This paper first analyzed the four components of heavy oil, then determined the density and viscosity characteristics of oil product A and determined the model. Two different surfactants, OP-10 and TX-100, were selected to analyze the influencing factors of the emulsification properties of the oil-water interface. The analysis results show that when the concentrations of the two surfactants vary within a certain range, their interfacial tensions are different, but they show the same law. With the increase of the surfactant content, the oil-water interfacial tension decreases, and the stability of the water-in-oil emulsion increases. When the frequency is constant, with the increase of the surfactant concentration, the dilation modulus of the oil-water interfacial film increases. When the concentration reaches a certain value, the surfactants fuse to form polymers, which reduces the strength of the oil-water interfacial film and reduces the dilation modulus.