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Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Diamant Master Guided Session #1 • DmmGS01 - 23/33
E.6.2 Shut-in express
Once a build-up is tagged within the build-up indicator channel, it is possible to get a quick
look at the corresponding loglog plot in Saphir with just a few clicks.
 A shading appears on the longest build-up, since we have selected it .
 Click the ‘Shut-in express’ icon; this is the last option of the ‘Shut-in’ toolbar .
A dialog is displayed to control the transfer of data to Saphir:
Through this option, a Saphir file will be built on the fly with the current pressure data, and
‘some rate history’ which will be 0 over the shaded zone (the selected shut-in period). For the
rate history prior to the build-up we need to select a given fluid (here only Oil is available) and
we need to select among:
 The actual production = ‘OIL Rate’ channel under Well#1.
 Part of the actual production only.
 A manual entry of production time tp, and rate Q.
We will choose the first option – select ‘Use the total production history’ in the dialog. Leave
the ‘Truncate data at the end of the last shut-in’ checked so that only data up to the selected
shut-in period is carried over to Saphir.
Note: the rate history currently holds more than 5600 rates. When we go into a real analysis
later we can reduce those rates to something smaller in Saphir; for the time being all we want
is to have a quick look at the loglog trend without calculating any model but only time
superposition so this is OK.