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A visualbasic program for histogram and variogram scaling
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DOI：10.1016/S0098-3004(01)00011-5.png)
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The VarScale program (1) calculates dispersion variances for different support volumes. (2) performs variogram and histogram scaling, and (3) performs scaling of a linear model of coregionalization (LMC). The input variogram may be at any scale. The required dispersion variances (or average variogram values) are calculated. User input is automatically passed between different components of the program. This paper describes the theoretical background of the scaling algorithms, the program structure of VarScale and presents three examples. Variogram scaling from core scale to well-log scale is illustrated with data from a Danish North Sea reservoir. Histogram and LMC scaling are illustrated with data from a West Texas reservoir using porosity and seismic data. (C) 2002 Elsevier Science Ltd. All rights reserved.
Keyword:
geostatistics
affine correction
indirect lognormal correction
average variogram
dispersion variance
upscaling
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