复合表面活性剂驱油剂的性能评价

Performance evaluation of composite surfactant flooding agent

表面活性剂驱油已成为现阶段提高驱油效果最常用的方法。本实验主要评价几种驱油用表面活性剂降低油水界面张力的能力,考察溶液浓度对其界面性能的影响。同时,以析液半衰期测定为评价指标,对其乳化能力进行考察。通过对表观黏度的测定,评价几种驱油用聚合物稳定性。最终评价聚合物与表面活性剂复配之后对界面张力产生的影响。

Surfactant flooding has become the most commonly used method to improve oil displacement at this stage. In this study, we mainly evaluated the ability of several surfactants to reduce the interfacial tension of oil and water, and investigated the effect of solution concentration on the interface properties. At the same time, the half-life of the solution was determined as the evaluation index, and the emulsifying ability was investigated. The stability of polymers for oil displacement was evaluated by measuring the apparent viscosity. The effect of polymer and surfactant on the interfacial tension was evaluated.