三元复合驱含油污水处理技术研究进展

Research processes on the treatment technologies of alkali/surfactant/polymer(ASP) flooding oily wastewater

与水驱和聚驱相比,三元复合驱可大幅提高原油驱油效率,是提高采收率技术的发展趋势。三元复合驱含油污水具有水质复杂、黏度大、乳化程度高、胶体稳定性强等特点,导致其难以处理,限制了三元复合驱技术的推广。分析了三元复合驱含油污水的水质特性,综述了三元复合驱含油污水的处理技术,并对今后的研究提出一些建议,旨在为三元复合驱含油污水处理技术的研发和工程应用提供参考。

Compared with water flooding and polymer flooding,alkali/surfactant/polymer(ASP) flooding had higher flooding efficiency,which was considered as a development trend for enhanced oil recovery. ASP flooding oily wastewater contained complex compounds with the characteristics of high viscosity,high emulsification and strong colloidal stability. It was of difficulty for the treatment of ASP flooding oily wastewater,which had limited the application of ASP flooding technology. In this paper,the water quality characteristics of ASP flooding oily wastewater were described and the treatment technologies were reviewed,and some suggestions for further research were also put forward. It provided references for the research and engineering application on the treatment of ASP flooding oily wastewater.