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Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Topaze Guided Session #1 • TopGS01 - 20/24
Fig. C01.11 • Model dialog
By default, the model is set to Analytical, but we could also invoke a 2D Numerical (see
session TopGS02). The default model is for a vertical well in a homogeneous circular reservoir.
kh and Re come from the current match point on the loglog plot. Pi comes from our earlier
choice, i.e. the maximum gauge value, which was converted to bottom-hole. The skin was
estimated automatically from the loglog plot.
Select Generate.
The model rates/cumulative are displayed in red on the history plot. The model is also added
on the loglog, Blasingame, and Fetkovich plots. On loglog and Blasingame plots the model
appears rather erratic and this is essentially due to the time function used, te = Q/q which is
not guaranteed to be monotonous.
Fig. C01.12 • First model estimate