Foam Assisted Gas Oil Gravity Drainage in Naturally-Fractured Reservoirs

Abstract

Abstract This paper introduces a novel enhanced-oil-recovery concept for naturally-fractured reservoirs. We use foam to create a viscous pressure drop along the fracture that is directly transferred to the oil-bearing matrix and accelerates the oil production. We developed an expression that predicts the maximum oil rate depending on the injected gas rate and properties of the foam generated in the fracture. The results of the numerical simulation are in good agreement with the developed model.