A dynamic mesh approach for simulation of immiscible viscous fingering

Peyman Mostaghimi, Kamali, Fatemeh , Jackson, Matthew D. and Pain, Christopher C. (2015). A dynamic mesh approach for simulation of immiscible viscous fingering. In: SPE Reservoir Simulation Symposium. SPE Reservoir Simulation Symposium, Houston, TX, United States, (). 23-25 February 2015. doi:10.2118/173281-MS

Author Peyman Mostaghimi
Kamali, Fatemeh
Jackson, Matthew D.
Pain, Christopher C.
Title of paper A dynamic mesh approach for simulation of immiscible viscous fingering
Conference name SPE Reservoir Simulation Symposium
Conference location Houston, TX, United States
Conference dates 23-25 February 2015
Proceedings title SPE Reservoir Simulation Symposium
Place of Publication Houston, TX, United States
Publisher SPE
Publication Year 2015
Sub-type Fully published paper
DOI 10.2118/173281-MS
Open Access Status Not yet assessed
Total pages 12
Language eng
Abstract/Summary Viscous fingering is a major concern in the waterflooding of heavy oil reservoirs. Traditional reservoir simulators employ low-order finite volume/difference methods on structured grids to resolve this phenomenon. However, their approach suffers from a significant numerical dispersion error due to insufficient mesh resolution which smears out some important features of the flow. We simulate immiscible incompressible two phase displacements and propose use of unstructured control volume finite element (CVFE) methods for capturing viscous fingering in porous media. Our approach uses anisotropic mesh adaptation where the mesh resolution is optimized based on the evolving flow features. The adaptive algorithm uses a metric tensor field based on solution interpolation error estimates to locally control the size and shape of elements in the metric. We resolve the viscous fingering patterns accurately and reduce the numerical dispersion error significantly. The mesh optimization, generates an unstructured coarse mesh in other regions of the computational domain where a high resolution is not required. We analyze the computational cost of mesh adaptivity on unstructured mesh and compare its results with those obtained by a commercial reservoir simulator based on the finite volume methods.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Non-UQ

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Created: Mon, 03 Apr 2017, 14:54:32 EST by Fatemeh Kamali on behalf of UQ Energy Initiative