anionic polyacrylamide water block agent in the oil field

anionic polyacrylamide water block agent in the oil field
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  • What is anionic polyacrylamide (Apam)?
  • 1. Introduction Anionic polyacrylamide (APAM) is a kind of organic high-molecular polymer with high hydrophilicity and viscosity, which is easily dissolved in water [ , , ].
  • Can cationic polyacrylamide flocculants be used to treat oily water?
  • Shu, G., Bu, K., Zhao, B. & Zheng, S. Evaluation of newly developed reverse demulsifiers and cationic polyacrylamide flocculants for efficient treatment of oily produced water. Colloids Surf. A 610, 125646 (2021). This work was supported by grants from the “Qihang Program” of the Southwest Petroleum University (2025QHZ001) awarded to C.Z.
  • 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.
  • Does polyacrylamide cause membrane fouling during flowback water treatment?
  • Xiong, B. et al. Polyacrylamide in hydraulic fracturing fluid causes severe membrane fouling during flowback water treatment. J. Membr. Sci. 560, 125–131 (2018). Barati, R. & Liang, J.-T. A review of fracturing fluid systems used for hydraulic fracturing of oil and gas wells. J. Appl. Polym. Sci. 131, np –n/a (2014).