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Emeraude v2.60 – Doc v2.60.01 - © KAPPA 1988-2010
Guided Interpretation #5 • B05 - 27/32
B05.6.4 • Zone Rates
In order to use the VW information it is necessary that the stations be included inside
calculation zones.
Select the ‘Calculation zones’ options, and ‘Interactive zone definition’.
Create a first calculation zone to include the top station.
Select the ‘Calculation zones’ option in turn to create zones 2 and 3 for stations 2 and 3,
zone 4 below the third set of perforations, and a final zone below the fourth perforation, as
in Fig. B05.32.
Fig. B05.32 • Calculation zones created
Select ‘Zone Rates’. The default model is 3-Phase L-G.
Select ‘Petalas & Aziz’ for the Liquid-Gas slippage, and ‘ABB-Deviated’ for Water-Oil.
In the ‘Rate calculation’ tab, on the first 3 zones,
Check that:
o
the regression is using Vapp, Density, YW, and VW, Fig. B05.33.
o
VW is not available on the bottom 2 zones.
On the lowermost zone, no measurement is available but Vm can be set to 0 manually, which
will permit that the schematic does not stop at the last data point, and will thus allow
Emeraude to calculate contributions for all perforations. This should be done automatically.