Core-scale description of porous media dissolution during acid injection - part II: calculation of the effective properties

• Autor(es):

  Golfier, Fabrice (INPL. ENSG. Laboratoire Environnement, Géomécanique et Ouvrages);

  Quintard, Michel (Institut de Mécanique des Fluides);

  Bazin, Brigitte (IFP);

  Lenormand, Roland (IFP).

• Fonte:

  Computational & Applied Mathematics; volume 25, número 1, páginas 55-78. 2006.

• Assuntos:

  core-scale dissolution;

  acidification;

  effective properties;

  porous media;

  wormhole.

• Resumo:

  Acid injection in porous medium is a process widely used for stimulation of petroleum wells and leads to the formation of highly conductive channels called wormholes. Two different transport-reaction models have been developed in Part I to describe the phenomenon at the core-scale. The possible existence of core-scale effective properties which appear in these models is discussed here on the basis of Darcy-scale numerical experiments. The advantages and drawbacks of one-equation and two-equation models are investigated by reference to averaged fields computed from Darcy-scale simulations.

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