Scaling in Super Element Model of Petroleum Reservoirs

A feature of the super element two-phase flow model in an oil reservoir is the construction of a solution on computational grids with a spatial step of the order of the distance between wells (hundreds of meters) horizontally and of the order of the total thickness of the reservoir (tens of meters)...

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Veröffentlicht in:Journal of physics. Conference series Jg. 1392; H. 1; S. 12072 - 12077
Hauptverfasser: Mazo, Alexandr, Potashev, Konstantin
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Bristol IOP Publishing 01.11.2019
Schlagworte:
Computational grids
Geology
Initial conditions
Permeability
Physics
Reservoir construction
Reservoirs
Two phase flow
ISSN:1742-6588, 1742-6596
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Zusammenfassung:A feature of the super element two-phase flow model in an oil reservoir is the construction of a solution on computational grids with a spatial step of the order of the distance between wells (hundreds of meters) horizontally and of the order of the total thickness of the reservoir (tens of meters) vertically. To maintain the acceptable accuracy of the solution, the upscaling procedures are performed during the transition from a detailed geological to a large super element computational grid and downscaling during a reverse transition at the local refinement of the solution. The field of absolute permeability and functions of relative phase permeability are subject to upscaling. The downscaling procedure is applied to the grid saturation function on the super element grid to formulate the initial conditions for local refinement of the solution on the detailed computational grid. The paper describes ways to simplify and implement these procedures, taking into account the characteristic features of the geological structure and the process of oil reservoir development.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1392/1/012072