Polyelectrolyte–nanocomposite for enhanced oil recovery: influence of nanoparticle on rheology, oil recovery and formation damage

Abstract Gum arabic (GA) capacity as an enhanced oil recovery (EOR) agent is studied and compared to the commonly applied xanthan gum (XG). FTIR TGA characterisation of these two polyelectrolytes a rheology study by viscosity measurement was conducted on their polymeric nano-polymeric solution at varying concentrations polymers nanoparticles (NP). Coreflooding experiments were based sequence waterflooding three slugs increasing concentration (and nano-polymeric) solutions evaluate EOR performance. Results show similar for 1.0 wt% GA 0.1 XG solution. And tends be Newtonian relatively high shear rate. The magnitude incremental first slug independent but significant XG. However, impact higher than increase in NP played vital role recovery, thereby connoting significance IFT, contact angle, its associated mechanisms EOR. affirms that hydroxyl group less GA, thus responsible adsorption