摘要
因产能措施井增多,大量的压裂液进入污水系统,导致采出水的黏度增大、乳化严重,已建污水处理系统工艺难以适应,污水水质达标率低。为解决此问题,大庆油田采油九厂加大新技术应用力度,引进高精滤技术,利用改性陶瓷膜颗粒抗污染能力强、过滤精度高的特点,以此取代常规的核桃壳、石英砂、磁铁矿等颗粒滤料。通过对含油污水处理系统进行分析,确定不同污水处理工艺的除油沉降段、过滤段的技术界限,在此基础上强化水质节点管理,优化污水系统运行参数,全力推进注水质量提升,保障“十三五”期间含油污水综合达标率稳步提升,污水水质达标率保持在90%以上。
Due to the increase of the wells for assurance of oil output,a large amount of fracturing fluid enters into the sewage system,resulting in the increased viscosity of produced water,severe emulsification,difficulty in adapting to the process of the established sewage treatment system,and low quality of sewage.In order to solve the above problems,the application degree of new technology is increased,and a high precision filter technology is introduced.It uses modified ceramic membrane particles with strong anti-pollution ability and high filtration accuracy to replace the conventional walnut shell,quartz sand,magnetite and other particle filters,and through the analysis of oil-bearing sewage treatment system,the technical boundaries of oil removal settlement section and filtration section of different sewage treatment technologies are determined.On this basis,water quality node management is strengthened,the operation parameters of sewage system are optimized,and the improvement of water injection quality is promoted with all efforts.By doing so,during the 14th Five-year Plan period,the comprehensive compliance rate of oily sewage can be steadily improved,and the compliance rate of sewage water quality can be maintained at above 90%.
作者
刘喜文
LIU Xiwen(Planning and Design Institution of No.9 Oil Production Plant,Daqing Oilfield Co.,Ltd.)
出处
《油气田地面工程》
2020年第11期52-56,共5页
Oil-Gas Field Surface Engineering
关键词
含油污水
工艺流程
适应性评价
解决措施
oily sewage
process flow
adaptability assessment
countermeasure
