Page 256 - KAPPA - Ecrin v4.30 tutorials

Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Topaze Guided Session #1 • TopGS01 - 10/24
On this scale we see that the match requires some adjustments.
First change b to 0, i.e. exponential decline. Then, adjust qi and Di for a better match.
You can use the Drag option , or the popup option 'Modify' until a satisfactory match is
found, e.g. Figure B01.15.
Fig. B01.15 • Match modified
Display the Results Figure B01.16
An Ultimate Recovery noted UR is given. This would be the
recovery for an infinite production time.
An abandonment time is calculated based on the input qa or
qa/qi.
The cumulative production at the abandonment time is
reported as Q(ta).
Note that on the plot, a red horizontal line shows the value of
qa, the abandonment rate.
If you modify the decline curve with the results in display,
they are continuously updated.
Fig. B01.16 • Results
Click on to add a plot. This option allows you to add Arps plots with a different scales and
display the plots together. The icon will tile the plots. See Figure B01.17.
Return to the main screen with .