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Ecrin v4.12 - Doc v4.12.02 - © KAPPA 1988-2009
Rubis Guided Session #3
• Rub
GS03 - 18/22
Specify that the target of the second control is a shut-in (“Q Tot (BH)”=0, no constraint), and
set the third and last control to be identical to the first one (target of type “P (BH)” = 3500
psia, with a constraint “Q Tot (BH)” = 10000 B/D) – the shut-in is inserted to take into account
the time necessary to perform the perforation job:
Click on OK to validate all changes. We do not need to rebuild the grid, as no modification was
made in the reservoir geometry. Visit the “Simulation – Run Settings” dialog to confirm the
various options copied from the previous run, and proceed with the simulation. When it is
completed, maximize the Cumulative view in the Global Results plot to check that the total oil
cumulative production is now slightly higher than the base case:
Fig. C01.2 • Global results, field total oil cumulative production of the “Perf” run
C01.2 • Improving the Producer Skin
Let us now see what happens if the opening of the producer top perforation is replaced by an
improvement of the middle perforation skin – as the result of a fracturation job, for instance.
Create another run called “Frac” by copy of the “Base” run: