Fig 1: Key steps in the multiscale method illustrated for a model from the SAIGUP study.
Fig 1a: Introduce a coarse grid by partitioning the input grid in index space, as seen in the right plot. The left plot shows a selection of nine coarse gridblocks.
Fig 1b:The left plot shows the velocity magnitude for a basis function modeling flow between the two adjacent gridblocks depicted in the bottom right plot. In the top right plot we show the logarithm of the corresponding permeability field.
Fig 1c: A selection of velocity basis functions shown in the global reservoir model. All basis functions model fine-grid flow patterns between two adjacent gridblocks. The MsMFE velocity solution is expressed as a linear superposition of all velocity basis functions.
Published September 17, 2009
A portfolio of strategic research projects funded by the Research Council of Norway