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Simulation de l’injection de carbone dans un site géologique de séquestration du CO 2

Simulation de l’injection de carbone dans un site géologique de séquestration du CO 2. Mohamed HAYEK, Emmanuel MOUCHE and Claude M Ü GLER. Laboratoire des Sciences du Climat et de l’Environnement Commissariat à l’Energie Atomique Orme des Merisiers F-91191 Gif-surYvette, FRANCE.

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Simulation de l’injection de carbone dans un site géologique de séquestration du CO 2

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  1. Simulation de l’injection de carbone dans un site géologique de séquestration du CO2 Mohamed HAYEK, Emmanuel MOUCHE and Claude MÜGLER Laboratoire des Sciences du Climat et de l’Environnement Commissariat à l’Energie Atomique Orme des Merisiers F-91191 Gif-surYvette, FRANCE

  2. Sleipner, Mer du Nord et

  3. Schematic representation of Utsira aquifer (Sleipner site) Seismic profiles (Bickle et al. 2007) Simulation results (Pruess et al. 2002) CO2 sequestration in the Sleipner field CO2 Stratification: How and why does it take place ? Projet ANR (BRGM, IFP, ICMCB, Schlum.)

  4. The 1D case (injection in vertical column) Outlines • The model • Solution analysis between two different homogeneities • Injection in vertical periodic layered column • The 2D Vertical case (Sleipner) • Numerical simulation (code Cast3M) • Theoretical analysis • Gravity + Capillarity

  5. Buckley-Leverett with gravity including capillarity effects

  6. Relative Permeability laws Linear Brooks-Corey Van Genuchten l=2 e=1/2, g=1/3 et m=0,457 R. Helmig, Multiphase flow and transport processes in the subsurface, Springer-Verlag 1997.

  7. kr(S), f(S) & G(S) G(S) kr(S) VG BC Lin. f(S) VG BC G(S) BC Lin. 0.25 VG 0 S 1 0.5

  8. medium 2 medium 1 Capillarity : Leverett law

  9. Injection in a vertical layered column Buckley Leverett with gravity v shale Sand CO2 injection

  10. Injection in a periodic layered vertical column Sand high permeability Case 2 low permeability Shale Shale low permeability Case 1 high permeability v Sand

  11. 2 1 v Case 1: (k1 > k2)

  12. 2 1 v Case 2: (k1 < k2)

  13. 1 2 1 2 1 2 1 2 1 v Injection in a vertical periodic layered column

  14. Shale layers injection well Simulation (Cast3M, CEA) Lower shale (impermeable) CO2 accumulation beneath each layer !!! 2D vertical formation of Sleipner type

  15. non-constant velocity vertical cut at the injection well

  16. Evolution of a plume in a periodic column with Heterogeneity of relative permeability laws

  17. medium 2 medium 1 Gravity alone: one condition at the interface (Flux continuity) Gravity + Capillarity: two conditions at the interface - Flux continuity - Extended pressure condition (Van Duijn et al., 1995)

  18. Our simulations (Cast3M) Gravity alone Gravity + capillarity

  19. Siddiqui & Lake (SPE, 1997)

  20. Conclusion • Upscaling in periodic layered porous media & Influence of • relative permeability heterogeneity , submitted AWR. • Collab. Avec IFP code COORES , pbme grav + capill.. M. Hayek, E. Mouche and C. Mugler, Modeling vertical stratification of CO2 injected into a deep heterogeneous saline aquifer with a Buckley-Leverett equation in presence of gravity. (Advances in Water resources, 2009)

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