The oil field belongs to a conventional heavy oil reservoir. Since the late development, with the application and scale expansion of chemical flooding, the treatment of produced water is more difficult, the effect of ...The oil field belongs to a conventional heavy oil reservoir. Since the late development, with the application and scale expansion of chemical flooding, the treatment of produced water is more difficult, the effect of conventional corrosion inhibitors and bactericides is poor, the water quality after treatment is poor in stability, and the water injection system pipe network is seriously corroded and blocked, which affects production. Through the research and development of a water quality stabilizer agent, the corrosion rate of polymer-containing produced water is significantly reduced after application, the corrosion rate of on-site hanging pieces is reduced to about 0.01mm/a, the reduction rate reaches 90%, the along-path bacterial content is reduced, the stability of the along-path water quality is improved, the generation of sediment in the water injection network is reduced, the water injection and polymer injection effects are effectively improved, and a positive contribution is made to further improving the oil recovery rate.展开更多
文摘The oil field belongs to a conventional heavy oil reservoir. Since the late development, with the application and scale expansion of chemical flooding, the treatment of produced water is more difficult, the effect of conventional corrosion inhibitors and bactericides is poor, the water quality after treatment is poor in stability, and the water injection system pipe network is seriously corroded and blocked, which affects production. Through the research and development of a water quality stabilizer agent, the corrosion rate of polymer-containing produced water is significantly reduced after application, the corrosion rate of on-site hanging pieces is reduced to about 0.01mm/a, the reduction rate reaches 90%, the along-path bacterial content is reduced, the stability of the along-path water quality is improved, the generation of sediment in the water injection network is reduced, the water injection and polymer injection effects are effectively improved, and a positive contribution is made to further improving the oil recovery rate.
