Multiscale Multiphysic Mixed Geomechanical Model for Deformable Porous Media Considering the Effects of Surrounding Area

Abstract

Porous media of hydro-carbon reservoirs is influenced from several scales. Effective scales of fluid phases and solid phase are different. To reduce calculations in simulating porous hydro-carbon reservoirs, each physical phenomenon should be assisted in the range of its effective scale. The simulating with fine scale in a multiple physics hydro-carbon media exceeds the current computational capabilities. So, the Improved Multiscale Multiphysic Mixed Geomechanical Model (IM³GM), has been recently developed. An elaso-plastic model which consider the hydraulic and mechanical behaviors of media is used to simulate the solid phase deformation in IM³GM. Also, the multiscale and adaptive mesh refinement (AMR) method is used to reduce the computational time. In this study, IM³GM is introduced by simulating the effects of surrounding area of reservoirs. Finally, a reservoir sample is simulated by IM³GM and reasonable agreements are obtained. It seems that the effect of surrounding area is undeniable and should be taken into consideration.