According to the three element compound different oil displacement agent issues affect on the stability of liquid production, the effect of different oil displacement agents on the three element composite flooding emulsion stability are studied through indoor demulsification and oil-water interfacial tension and zeta potential and viscosity parameters. The results show that the single alkali and surfactant can reduce the interfacial tension, increase the zeta potential, and the dehydration rate reduced, stability enhanced;polymer is to mainly increase the zeta potential and viscosity to decrease dehydration rate and increase stability; when a variety of oil displacement agents exist, the emulsion composition becomes complex and emulsification becomes serious, emulsion liquid is more stable. So, the variation rule for the effect of three element composite oil displacement agent on the stability of liquid production can be found out via interface characteristics parameters to provide reasonable oil displacement agent for oil field.%针对三元复合驱不同驱油剂对采出液稳定性的影响问题,通过室内破乳脱水实验及油水界面张力、zeta电位、黏度等参数,研究了不同驱油剂对三元复合驱采出乳状液稳定性的影响.结果表明:单一的碱和表面活性剂能够降低油水界面张力、增加zeta电位,从而减少脱水率、增强稳定性;聚合物则主要是增加zeta电位和体系黏度从而脱水率减少,稳定性增强;当多种驱油剂共同存在时乳状液成分复杂,乳化严重,乳状液更加稳定.因此可通过界面特性参数找出三元复合驱驱油剂对采出液稳定性的影响变化规律,为油田现场提供合理的驱油药剂.
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