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- W99540904 abstract "Two methods to increase the accuracy of a numerical simulation of a steep front in waterflooding of a reservoir are described. These techniques are applicable to a wide variety of problems with sheer layers and steep fronts. (1) The biased difference algorithms modified to take into account the shape of the fractional flow rate equation are described. The results obtained are good for reasonable ranges of diffusion constants and distortion of the shock profile due to grid orientation was not encountered. (2) A better resolution of the saturation profile, which at the same time did not radically increase storage and computation time, is obtained by a selective grid refinement. This scheme inserted new points in the shock region, which was found by looking at the curvature and slope of the solution. The one-dimensional results were excellent and the 2-dimensional results were reasonable. Selective grid refinement may be extended by inserting more new points into the refined area and consequently improving the 2-dimensional results." @default.
- W99540904 created "2016-06-24" @default.
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- W99540904 date "1981-02-01" @default.
- W99540904 modified "2023-09-24" @default.
- W99540904 title "Accurate waterflood simulation using biased difference and selective grid refinement" @default.
- W99540904 hasPublicationYear "1981" @default.
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