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3rd Thermal and Fluids Engineering Conference (TFEC)

ISSN: 2379-1748

DYNAMIC UNSTRUCTURED MESH ADAPTIVITY FOR IMPROVED SIMULATION OF GEOTHERMALWATER EXTRACTION IN RESERVOIR-SCALE MODELS

Pablo Salinas
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

Qinghua Lei
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

C. Jacquemyn
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

Dimitrios Pavlidis
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

Z. Xie
Now at School of Engineering, Cardiff University, Cardiff, CF24 3AA, UK

Christopher C. Pain
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

Matthew D. Jackson
Novel Reservoir Modelling and Simulation Group, Department of Earth Science and Engineering, Imperial College London, UK

DOI: 10.1615/TFEC2018.tfh.020897
pages 1245-1248


KEY WORDS: Geothermal, CVFEM, wells, porous media, unstructured mesh, discontinuous galerkin, darcy flow

Abstract

A novel method to simulate near-wellbore flow in geothermal reservoirs by using dynamic unstructured mesh optimisation and the Double Control Volume Finite Element method (DCVFEM) is presented. The mesh resolution is dynamically adapted to a field of interest, allowing to focus the mesh resolution only when and where it is required. Geology is represented by bounded surfaces whose petrophysical properties are constant within each of this surfaces. We demonstrate that the method has wide application in reservoir-scale models of geothermal fields, and regional models of groundwater resources.

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