polyacrylamide oilfield water shutoff agent in russia

polyacrylamide oilfield water shutoff agent in russia
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  • How to treat water from polymer flooding in oil production?
  • Zhang, Y. et al. Treatment of produced water from polymer flooding in oil production by the combined method of hydrolysis acidification-dynamic membrane bioreactor–coagulation process. J. Pet. Sci. Technol. Eng. 74, 14–19 (2010).
  • Which polymers are used in oil fields?
  • Polymers, such as partially hydrolyzed polyacrylamide (HPAM), are widely used in oil fields to enhance or improve the recovery of crude oil from the reservoirs. It works by increasing the viscosity of the injected water, thus improving its mobility and oil recovery.
  • Can gel be used as water shut-off agent?
  • The use of gel as the water shut-off agent has been widely reported in enhanced oil recovery (EOR) of mature oil fields. The organically cross-linked polymer systems are preferred due to their greater thermal stability and suitability over wide pH range.
  • Does biological filtration improve polyacrylamide biodegradation?
  • Freedman, D. E. et al. Biologically active filtration for fracturing flowback and produced water treatment. J. Water Process Eng. 18, 29–40 (2017). Dai, X. et al. Waste-activated sludge fermentation for polyacrylamide biodegradation improved by anaerobic hydrolysis and key microorganisms involved in biological polyacrylamide removal.