Basic HTML Version
Ecrin v4.12 - Doc v4.12.02 - © KAPPA 1988-2009
Topaze Guided Session #1
•
TopGS01 - 23/25
C01.4 • Improve
This option calls a nonlinear regression
algorithm that will adjust the desired model
parameters, in order to match the rate and/or
the cumulative and/or the pressure.
Select Improve.
Fig. C01.14 • Improve dialog
The error between the model and the data is calculated on automatically selected points, which
can be controlled using the 'Select Regression Points' button.
Leave all the weights to 1. Keep Pi constant by un-checking the corresponding checkbox.
Press Run.
During the regression, a dialog shows the evolution of the parameters, and the successive
iterations are shown on the history plot. When the regression completes, or if Cancel is
pressed, the last solution is generated.
Fig. C01.15 • Result after improve (loglog scale modified)
Final results can be seen for instance by double clicking on the status window (the window at
the top right of the screen with the title 'Fluid is Oil').