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Two-phase flow through fractured porous media.
I I Bogdanov1, V V Mourzenko, J-F Thovert
1Laboratoire de Combustion et de Détonique, SP2MI, BP 30179, 86962 Futuroscope Cedex, France.
Summary
This study numerically simulates two-phase flow in fractured porous media. It determines macroscopic relative permeabilities for random fractured media, offering insights into fluid flow dynamics.
Area of Science:
- Geosciences
- Fluid Dynamics
- Porous Media Physics
Background:
- Understanding fluid flow in fractured porous media is crucial for various applications, including groundwater hydrology and petroleum engineering.
- Existing models often simplify fracture network geometry and permeability distributions, limiting their applicability.
Purpose of the Study:
- To numerically investigate two-phase flow in fractured porous media using a comprehensive discrete fracture model.
- To determine steady-state macroscopic relative permeabilities for complex, random fractured media.
Main Methods:
- A direct and complete numerical solution of generalized Darcy equations was employed.
- The model accommodates arbitrary fracture network geometries and heterogeneous permeability distributions within the matrix and fractures.
- Simulations were performed for random fractured media.
Main Results:
- Macroscopic relative permeabilities were calculated as a function of mean saturation.
- The study presents detailed results for various random fractured media configurations.
- Numerical results were compared with predictions from simpler, established models.
Conclusions:
- The developed numerical model provides a robust tool for analyzing two-phase flow in complex fractured porous media.
- The findings offer a more accurate understanding of fluid flow behavior and relative permeability in heterogeneous fractured systems.
- This research contributes to improved modeling of subsurface fluid flow in fractured geological formations.