Numerical studies on coupled flow and geomechanics with the multiple porosity model for naturally fractured tight and shale gas reservoirs Conference Paper uri icon


  • We performed numerical simulations on coupled flow and geomechanics for naturally fractured reservoirs, using the multiple porosity model, dynamic permeability and porosity. From numerical tests, geomechanics affected flow regimes, changing permeability and porosity, followed by pressure, because permeability and geomechanical moduli at the fracture are functions of strain (or effective stress), leading to highly nonlinear coupled systems between flow and geomechanics. We found differences of pressure, permeability, porosity, and Young's modulus between the uncoupled flow-only and coupled flow-geomechanics simulations. Thus, neglecting the dynamic characteristics of flow and geomechanical properties may cause large errors in naturally fractured reservoirs. Nonlinear and dynamic flow and geomechanical properties, related to geomechanically sensitive naturally fractured reservoirs, can properly be captured by an appropriate model for coupled flow and geomechanics, such as the multiple porosity model used in this study. Copyright 2012 ARMA, American Rock Mechanics Association.

published proceedings

  • 46th US Rock Mechanics / Geomechanics Symposium 2012

author list (cited authors)

  • Kim, J., & Moridis, G. J.

complete list of authors

  • Kim, J||Moridis, GJ

publication date

  • December 2012