弱凝胶-活性水复合调驱体系的室内研究

Laboratary Study of Compound Oil Displace System Comprising Weak Gel and Active Water

针对辽河油田锦16块油藏条件,对弱凝胶体系、活性水体系及其复合体系进行了室内试验研究,并对不同体系的驱油效果进行了评价,筛选适合油藏条件的弱凝胶-活性水复合调驱体系。结果表明,用污水配制的弱凝胶体系具有很好的成胶性能,筛选出的表面活性剂与碱复配后有很好的协同效应,弱凝胶-活性水复合调驱体系可大幅度提高驱油效率。

Laboratory study on oil displacement of weak gel system, active water system and their compound system was carried out according to reservoir conditions of Jin 16 piece of Liaohe Oilfield, and three displacement systems were evaluated. Compound displace system comprising weak gel - active water suitable for oil reservoir conditions was selected. The result showed that weak gel system prepared from sewage had excellent gel performance. The surfactant selected had good surfactant activity, and good synergistic effect with alkali. The compound displacement system comprising weak gel - active water greatly increase efficiency of displacement.