Nano-colloid based suspensions and emulsions used as means for enhanced oil recovery

Aqueous solutions of polyphenols extracted from parsley leaves are mixed with solution ferric chloride hexahydrate to synthesize suspensions polyphenol-coated iron oxide nanoparticles, which then used prepare Pickering oil (n-decane)-in water emulsions. The performance the nano-colloid and emulsions as agents enhanced recovery (EOR) is assessed secondary imbibition tests performed under constant flow rate on a glass-etched pore network, after drainage / primary cycle for paraffin brine (0.25M NaCl solution) system. transient changes fluid saturation profile along pressure drop across porous medium recorded. Comparative analysis efficiency attained varying concentration, emulsion, enables us classify them, select most efficient ones further studies.