Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DEVELOPMENT OF A COUPLED GEOMECHANICAL MODEL FOR A COMPOSITIONAL RESERVOIR SIMULATOR USING THE FINITE VOLUME METHOD
Submission Author:
Francisco Marcondes , CE
Co-Authors:
João Henrique Bessa Gomes, Francisco Marcondes, Kamy Sepehrnoori
Presenter: Francisco Marcondes
doi://10.26678/ABCM.COBEM2019.COB2019-2382
Abstract
Traditional petroleum reservoir simulators usually apply a single parameter for the rock compressibility to account for the effect of addition and removal of fluid in the porous media mechanical structure. The geomechanical effect however has been shown to be a more complex phenomenon that is intrinsically connected to the evolution of reservoir pore pressure distribution and therefore has to be taken into careful consideration, especially for stress-sensitive formations. The main objective of this work is to present an iteratively coupled solution between a compositional reservoir simulator and a linear elastic geomechanical model and its application to oil recovery processes. The simulator UTCOMP was used in the implementation of the geomechanical code and its coupling to the reservoir model. The discretization approach for both models is the Element-based Finite Volume Method (EbFVM), allowing the use of unstructured grids for the representation of the physical domain. The implementation is validated through specific problems with analytical solutions available in the literature. The results obtained show good agreement between the analytical solution and the simulation from the coupled code, indicating that the implementation of the geomechanical model and its coupling to UTCOMP was successfully implemented.
Keywords
Petroleum Reservoir Simulation, Geomechanical Analysis, Iterative Coupling, Element-based Finite Volume Method (EbFVM), unstructured grids
