Abstract
Abstract The sensitivity of a numerical steamflooding model toward mobility weighting and discretization procedures is examined in depth. Four numerical discretization schemes are used: a five-point finite-difference model, a nine-point method similar to that proposed by Yanosik and McCracken, a seven-point scheme, and a method related to the finite-element method. Three mobility-weighting schemes are studied, including the upstream mobility-weighting approach often used in simulation today. The results of this investigation demonstrate that both accurate numerical procedures and the correct mobility weighting are needed to produce realistic simulations in an example problem. In particular, the standard upstream mobility-weighting approach is shown to produce unrealistic simulations regardless of the discretization scheme used.
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