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EGEE 520: Spring 2008 Instructor: Dr. Derek Elsworth By: Sylvain-Didier Kouame

EGEE 520: Spring 2008 Instructor: Dr. Derek Elsworth By: Sylvain-Didier Kouame. Overview. I- Introduction II- Background III- Problem Statement IV- Simulation V- Results and Validation VI- Parametric Study VII-Conclusion. I- Introduction. Fluid flow in porous Medium

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EGEE 520: Spring 2008 Instructor: Dr. Derek Elsworth By: Sylvain-Didier Kouame

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  1. EGEE 520: Spring 2008 Instructor: Dr. Derek Elsworth By: Sylvain-Didier Kouame

  2. Overview • I- Introduction • II- Background • III- Problem Statement • IV- Simulation • V- Results and Validation • VI- Parametric Study • VII-Conclusion

  3. I- Introduction • Fluid flow in porous Medium • Enhanced Oil Recovery • Hydrogeology Figure 1:CO2 and Water Flow Through Porous

  4. II- Background Governing Equations: Darcy’s Equation Figure2: Darcy's experiment

  5. III- Statement of the Problem Formulation: * Optimize fluid (oil) displacement in a porous space by injecting, CO2 which is miscible in oil and nitrogen immiscible in oil. • Rock Properties • Oil Properties • - Injected Gases Miscible/Immiscible 100% N2 0% CO2 0% N2 100% CO2

  6. IV- Simulation (CMG) Figure1: 3-D View Of Core Sample Figure1: Relative Permeability Curve

  7. V- Results

  8. VI- Parametric Study and Validation A vertical sand column of lengthL = 120cm Cross-sectional area A = 1 cm2 The difference between water levels at the inflow and the outflow reservoirs is Dh = 120 cm The hydraulic conductivity K = 20 cm3/min

  9. Parametric Study and Validation • - Injected Fluids • .Water • .Water Saturation 100% • .Oil Saturation 0% • .Injection Rate 20 cm3/min • Fluids Produced • .Water • .Produced Water 100% • .Produced Oil 0% • .Production Rate 20 cm3/min Figure1: 3-D View Of Core Sample

  10. VII- Conclusions • Nitrogen and Carbon could be used simultaneously to • improve fluid displacement. • Optimum recovery level, only a very small amount of the • second gas should be added to the initial gas which should • also is the main gas injected.

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