Why is hydrolysed polyacrylamide used in Polymer Flooding?

Hydrolysed polyacrylamide (HPAM) is mainly used in polymer flooding due to its viscosity and displacement properties . Surfactant flooding is also an essential method for enhanced oil recovery.

What is hydrolyzed polyacrylamide (HPAM)?

One of the extensively employed polymers in petroleum engineering especially in EOR process partially hydrolyzed polyacrylamides (HPAMs) due to their moderately good solubility in water and reasonable economic .

Which polymer is produced by hydrolysis of acrylamide?

HPAM is an anionic polymer produced through the hydrolysis of polyacrylamide. In this study, the HPAM used was 80% acrylamide, indicating that the charge along the polymer chain was uniformly distributed but localised at specific points. The number of chains also increases as the concentration of HPAM increases.

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 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.

Are polyacrylamide-degrading bacterial strains isolated from soil?

Two polyacrylamide-degrading bacterial strains were isolated from soil, Bacillus sphaericus and Acinetobacter sp., utilizing 16–19% polyacrylamide after 14 days of cultivation (Matsuoka et al., 2002).