Cristin-resultat-ID: 1120206
Sist endret: 20. januar 2015, 14:14
NVI-rapporteringsår: 2013
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2013

Fast Simulation of Polymer Injection in Heavy-Oil Reservoirs Based on Topological Sorting and Sequential Splitting

Bidragsytere:
  • Knut Andreas Lie
  • Halvor Møll Nilsen
  • Atgeirr Flø Rasmussen og
  • Xavier Raynaud

Bok

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2013
Sider: 345 - 357
ISBN:
  • 978-162748024-6

Klassifisering

Fagfelt (NPI)

Fagfelt: Geofag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Fast Simulation of Polymer Injection in Heavy-Oil Reservoirs Based on Topological Sorting and Sequential Splitting

Sammendrag

We present a set of algorithms for sequential solution of flow andtransport that can be used for efficient simulation of polymerinjection modeled as a two-phase system with rock compressibility andequal fluid compressibilities. Our formulation gives a set ofnonlinear transport equations that can be discretized with standardimplicit upwind methods to conserve mass and volume independent of thetime step. In the absence of gravity and capillary forces, thesplitting is unconditionally stable and the resulting nonlinear systemof discrete transport equations can be permuted to lower triangularform by using a simple topological-sorting method from graphtheory. This gives an optimal nonlinear solver that computes thesolution cell by cell with local iteration control. The single-cellsystems can be reduced to a nested set of nonlinear scalar equationsthat can be bracketed and solved with standard gradient orroot-bracketing methods. The resulting method givesorders-of-magnitude reduction in runtimes and increases the feasibletime-step sizes. For cases with gravity, the same method can beapplied as part of a nonlinear Gauss--Seidel method. Altogether, ourresults demonstrate that sequential splitting combined with standardupwind discretizations can become a viable alternative to streamlinemethods for speeding up simulation of advection-dominated systems

Bidragsytere

Aktiv cristin-person

Knut-Andreas Lie

Bidragsyterens navn vises på dette resultatet som Knut Andreas Lie
  • Tilknyttet:
    Forfatter
    ved Mathematics and Cybernetics ved SINTEF AS

Halvor Møll Nilsen

  • Tilknyttet:
    Forfatter
    ved Mathematics and Cybernetics ved SINTEF AS

Atgeirr Flø Rasmussen

  • Tilknyttet:
    Forfatter
    ved Mathematics and Cybernetics ved SINTEF AS

Xavier Raynaud

  • Tilknyttet:
    Forfatter
    ved Mathematics and Cybernetics ved SINTEF AS
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Resultatet er en del av Resultatet er en del av

SPE reservoir simulation symposium 2013 : The Woodlands, Texas, USA, 18-20 February 2013.

Society of Petroleum Engineers, .. 2013, Curran Associates, Inc.. Vitenskapelig antologi/Konferanseserie
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