石油开采废水经处理后回注油层作为生产用水，是解决油田环境污染和节约水资源的有效途径。今后应重点开发相关的深度处理技术、材料和设备。 Oil recovery wastewater treatment back into the reservoir as production water, oilfield environmental pollution is to solve and save water an effective way. The future should focus on the development of related advanced processing technology, materials and equipment.