AQUEOUS FORMULATIONS OF SURFACTANTS AND ASSOCIATIVE POLYMERS FOR THE ASSISTED RECOVERY OF PETROLEUM

摘要

The invention concerns aqueous formulations suitable as extraction fluid for the assisted recovery of petroleum, which comprise: at least one surfactant; and at least one associative polymer, such as obtained by radical micellar polymerisation by contacting in aqueous medium: hydrophilic monomers, solubilised or dispersed in the aqueous medium; hydrophobic monomers in the form of a micellar solution; and at least one initiator of radical polymerisation; and preferably at least one radical polymerisation control agent.