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Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Topaze Guided Session #1 • TopGS01 - 8/24
Fig. B01.13 • Parameters
Lasso option
With the Lasso option you can have Topaze calculate all three parameters or simply qi and Di.
On the plot you can define one or several areas. This type of selection by lasso allows to select
only the representative points corresponding to the stabilized production (particularly not to
select transient time data as indicated in the screen shot below).
Topaze then runs a regression to find the optimum parameters to match the data on your
selections.
Fig. B01.13A • ARPS point selection