How is partially hydrolyzed polyacrylamide treated?

Dong L, Su F, Wang YZ. Treatment of partially hydrolyzed polyacrylamide by mixed bacteria isolated from wastewater. Environmental Progress & Sustainable Energy. 2020;39 (6):e13445. doi: 10.1002/ep.13445. [DOI] [Google Scholar]

Which polymer is used to produce partially hydrolyzed polyacrylamide (HPAM)?

PAM is used to produce partially hydrolyzed polyacrylamide (HPAM), which is linear, anionic, water-soluble, stable, polymeric, and high molecular weight chain of acrylamide (C 3 H 5 NO) monomers (Bao et al., 2010; Braun et al., 2022; Liu et al., 2016; Xiong et al., 2018).

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.

What is the most widely used polymer for enhanced oil recovery?

In this respect, partially hydrolyzed polyacrylamide (HPAM) has become the most widely used polymer for enhanced oil recovery because of its low-price, good viscous properties, and well-known physicochemical characteristics.

Is HPAM a water soluble polymer?

HPAM is a water-soluble, commonly injected polymer into oil reservoirs to improve the water flooding process (Xue et al., 2022; Zhao et al., 2008).

Does polymer flooding improve oil recovery?

Polymer flooding increases water viscosity and oil/water mobility ratio, and thereby enhances oil recovery. Polymer flooding has been proven to be an effective means to enhance oil recovery for middle/high water-cut oilfields ( Gao, 2011 ).