multiscale modelling the rational way of resolving fine scales in challenging industrial problem s
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Geomodels. X-component of velocity base functions in 2D. Industrial benchmark in reservoir simulation: 10 th SPE Comparative Solution Project. Multiscale Modelling The rational way of resolving fine scales in challenging industrial problem s. Example: Reservoir simulation. Problem:

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multiscale modelling the rational way of resolving fine scales in challenging industrial problem s
Geomodels

X-component of velocity base functions in 2D

Industrial benchmark in reservoir simulation:

10th SPE Comparative Solution Project

Multiscale ModellingThe rational way of resolving fine scales in challenging industrial problems

Example: Reservoir simulation

Problem:

  • physical problems often involve many scales
  • details on all scalesimpact large-scale behaviour of the system

In industry – homogenisation/upscaling:

  • fine-scale represented as effective parameters on coarse grids
  • not always sufficiently robust
  • bottleneck in the workflow

Our approach – multiscale simulation

  • mixed multiscale finite element methods
  • subscale information incorporated through base functions computed numerically on local subgrid
  • global system solved on coarse grid
  • natural scalability and parallelism
  • very flexible with respect to geometry of grid-blocks

Upscaled permeabilities

Multiscale solution

  • Strategic Institute Project:
  • GeoScale: Establish a mathematical and numerical technology
  • that facilitates reservoir simulation on full-scale 3D geomodels.
  • 2004-2007, 12 million NOK
  • Partners: SINTEF and UiB
  • Collaboration with two national Centres of Excellence (CMA, Oslo and CIPR, Bergen), Statoil, and Schlumberger
  • http://www.math.sintef.no/GeoScale/
  • Contact: [email protected] / +47 22 06 77 10
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