... oil recovery. Smart water can improve oil recovery through wettability alteration. However, wettability alteration also leads change in mobility ratio, which depending on value, may have either a negative or positive impact on oil recovery and water production and must therefore be carefully...

.... In such a case, mobility ratio of polymer solution to oil is much greater than one, which implies unstable flow and strong viscous fingering. Existing reservoir simulators lack the capability of modeling such a physical phenomenon. Since many viscous-oil reservoirs have high permeability contrast between layers...

...) is considered in which the diffusion coefficient is exponentially proportional to concentration. Highly accurate nonlinear numerical simulations are conducted to simulate the frontal instability under unfavorable mobility ratio between solvent and oil. The effect of injection rate and mobility contrast...

... with solvent. Solvent and heavy oil mixing occurs over a narrow zone, so localized viscous fingering can have a significant impact on the effectiveness of the solvent. In this study, direct pore scale modeling was used to simulate viscous fingering phenomenon during unfavorable mobility ratio miscible...

... be an ideal hybrid option along with hot water to recover high viscous heavy oil in thin reservoirs. chemical flooding methods oil sand Modeling & Simulation Upstream Oil & Gas SAGD hot water thin reservoir mobility ratio enhanced recovery complex reservoir Thickness viscosity...

... ), to address the problem of unstable displacement in the use of laboratory scaled models to simulate the heavy oil waterflooding process. The dimensionless instability number depends on the mobility ratio, displacement velocity, system geometry and dimensions, capillary and gravitational forces, permeability...

... . 2 λ = ϕ ρ f C p f ϕ ρ f C p f + ( 1 − ϕ ) ρ s C p s Abstract Adverse mobility ratio at the flood front in displacement processes due to temperature difference between the injected fluid and the medium and/or the inhabitant fluid may result...