Wettability Alteration Using Fluorinated Nano-Silica for Near Wellbore Region

Abstract

Fluorinated nano-Silica particles are capable of coating silica and limestone substrates with an amphiphobic layer. A layer that repels both water and oil to some extent. The polymer formed with PFDS and TEOS is capable of forming strong permanent bonds with silica substrates. This imparts the treatment exceptional durability and stability. The effect of this treatment on permeability and porosity was studied. Contact angle study, high temperature stability and impact on permeability were the elimination criterion for selecting a possible candidate treatment candidate. With the help of the Sol-gel Stober process, suspended fluorinated organic monomers were generated, which polymerized to form the treatment chemical. Finally, a simulation study helped verify the perks theorized for field scale application of this treatment.