Page 221 - KAPPA - Ecrin v4.30 tutorials

Ecrin v4.20 - Doc v4.20.01 - © KAPPA 1988-2011 Saphir Guided Session #8 • SapGS08- 9/11
Fig. B02.6 • Pseudo-radial flow line fit
We can now go back to the square linear flow plot by clicking on and selecting ‘Square
linear FL^2’. Note that the pressure and its derivative are now joining in a single unit slope
trend, as the reservoir pressure Pi is now based on the radial flow straight line regression and
is not an arbitrary value anymore.
Fig. B02.7 • Final ACA plot
In this case we have identified a pseudo-radial flow regime and calculated reservoir pressure
and transmissibility. The main results are:
• Start of radial flow = 98 hr.
• Reservoir initial pressure = 10956.3 psia.
• Radial flow slope = 12232 psia.
• Far field mobility = 0.052 md/cp.