【摘要】 为了研究丙撑基双(十八烷基二甲基氯化铵)(简写18-3-18)、氯化钾和水杨酸钠复配形成胶束体系的机理,并且找到其构成的粘弹性表面活性剂(VES)压裂液体系的最佳配比,本文采用扫描电子显微镜(SEM)来观察不同组分与粘弹性表面活性剂混合所具有的微观结构,采用粘度计测量其粘度以找到最佳配比,并且加入聚氧乙烯以期望进一步提高其粘弹性.结果表明:当18-3-18的浓度固定为2 wt%、调节氯化钾含量为7 wt%、水杨酸钠含量为0.6 wt%时,形成的VES压裂液粘弹性最佳,并且在加入0.1 wt%的聚氧乙烯之后,其体系粘度均有大幅度增加,且在高剪切速率下效果更好.更多还原

【Abstract】 In order to study the mechanism of the formation of micelle system by the combination of propylene bis(octadecyl dimethyl ammonium chloride)(abbreviated as 18-3-18),potassium chloride and sodium salicy-late,and to find the viscosity The best ratio of elastic surfactant(VES) fracturing fluid system.In this paper,scanning electron microscope(SEM) is used to observe the microstructure of different components mixed with viscoelastic surfactant,and the viscosity is measured with a viscometer.Find the best ratio,and add polyoxy-ethylene to hope to further improve its viscoelasticity.The results show that when the concentration of 18-3-18 is fixed at 2 wt%,the potassium chloride content is adjusted to 7 wt%,the sodium salicylate content is at 0.6 wt%,the formed VES fracturing fluid has the best viscoelasticity,and after adding 0.1 wt% polyoxyethylene,the viscosity of the system has increased significantly,and the effect is better at high shear rate.更多还原