Journal
TRANSPORT IN POROUS MEDIA
Volume 134, Issue 2, Pages 399-434Publisher
SPRINGER
DOI: 10.1007/s11242-020-01451-8
Keywords
Fractured reservoirs; Embedded discrete fracture model; Dual porosity; Hybrid models; Multiphase flow
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Funding
- Total, S.A.
- Energi Simulation
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Flow modelling challenges in fractured reservoirs have led to the development of many simulation methods. It is often unclear which method should be employed. High-resolution discrete fracture and matrix (DFM) studies on small-scale representative models allow us to identify dominant physical processes influencing flow. We propose a workflow that utilizes DFM studies to characterize subsurface flow dynamics. The improved understanding facilitates the selection of an appropriate method for large-scale simulations. Validation of the workflow was performed via application on a gas reservoir represented using an embedded discrete fracture model, followed by the comparison of results obtained from hybrid and dual-porosity representations against fully explicit simulations. The comparisons ascertain that the high-resolution small-scale DFM studies lead to a more accurate upscaled model for full field simulations. Additionally, we find that hybrid implicit-explicit representations of fractures generally outperform pure continuum-based models.
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