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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

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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: Knut-Andreas.Lie@sintef.no / +47 22 06 77 10


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