Eco-friendly biopolymer–iron hybrid nanocomposite for advanced HPAM–Cr(III) gel stabilization and water shut-off performance under high-salinity reservoir conditions

Key Points

• Gel stabilization significantly improves when using a biopolymer-iron hybrid nanocomposite, enhancing water shut-off efficiency.
• The hybrid nanocomposite showcases effectiveness even in high-salinity reservoir environments, crucial for oil recovery processes.
• Assessment using materials science techniques identifies the specific interactions between the biopolymer and Cr(III) ions in the composite.
• This research supports the development of eco-friendly solutions in petroleum engineering, fostering sustainable practices in extraction.