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Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Topaze Guided Session #1 • TopGS01 - 11/24
Fig. B01.17 • Multiple Arps plots
B01.5 Fetkovich type curve
Maximize the Fetkovich type-curve plot.
This plot combines 2 families of type-curves; the Arps decline curves to the right, and a
transient part to the left for a well in a circle. Since a Pi and flowing pressure have been
entered, the Fetkovich plot can be used to get an estimate of kh and Re.
A legend can be displayed using the icon . In addition, the parameter associated with every
curve can be seen when moving the cursor on top of them.
When the plot is created, Topaze runs a non linear regression to find a match point. The match
values can be seen in the Results dialog. The match can be modified by dragging directly the
data on the plot.
To drag, simply click the left button inside the plot area, keep the button pressed, and move
the mouse.
Fig. B01.18 • Match modified