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Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Saphir Guided Session #3 • SapGS03 - 5/13
C01 • Using the Numerical model
C01.1 • Comparing numerical and analytical model
Let us use the model set up in the previous section and assign a flowrate for the tested well
P01. This can be done by double clicking on the well or loading the data from the interpretation
panel as covered in the previous section. In the Well dialog, hit the Production Tab and enter
manually 1000 hrs of 1000 STB/D.
Choose the panel and the Test Design icon . Select the numerical model
by clicking on the tab. Accept the default model parameters and check the options
'store pressure fields' and 'display during generation'. See Figure C01.1.
Fig. C01.1 • Model dialog
Generate the model and extract normally the pressure response clicking on .
The simulated pressure in the tested well is displayed in the loglog plot in Figure C01.2 left and
exhibits clearly the near parallel faults of our model. It can also be seen from the pressure
fields, Figure C01.2 right, that the initial pressure is still maintained in the outer parts of the
reservoir thus the effect seen is not purely radial. During the generation you can observe the
pressure field animation in the geometry plot.
The distance to the faults from P01 is approximately 2700 and 2800 ft respectively.
Click on Model and choose the Analytical tab, define the boundary model as 'Parallel
faults'. Input the distance to the faults equal to those of the 2D Map and generate.
The match is near perfect and illustrated in Figure C01.3.