Construction of finite-difference scheme for simulation of flows in porous media under near-critical thermodynamic conditions
DOI:
https://doi.org/10.7242/1999-6691/2013.6.2.28Keywords:
numeric simulations, finite-difference method, approximation, porous media, multiphase flows, critical pointAbstract
We investigate the mathematical model of three-phase non-isothermal binary mixture flows in porous media under sub- and supercritical conditions. We analyze the problems of numerical simulation of flows in a porous medium assuming that enthalpy is an independent variable of the model. We propose a continuous finite-difference approximation of convective fluxes under near-critical thermodynamic conditions. The model can be used for numerical simulation of the problems of underground carbon dioxide storage, geothermal energy production and hydrocarbon deposits exploration.
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Pruess K., Spycher N. ECO2N -A fluid property module for the TOUGH2 code for studies of CO2 storage in saline aquifers // Energ. Convers. Manage. - 2007. - V. 48, N. 6. - P. 1761-1767. DOI
2. TOUGH2 User’s Guide, Version 2.1: Report (revised) / Lawrence Berkeley National Laboratory: Pruess K., et al. - Berkeley, Calif., U.S., 2011. - 214 r. - LBNL-43134.
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4. Aziz K., Settari A. Petroleum Reservoir Simulation. - London - NY: Applied Science Publishers, 1979. - 476 p.
5. Coats K.H. An equation of state compositional model // SPE Journal. - 1980. - V. 20, N. 5. - P. 363-376. DOI
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