Page 132 - Principles of Applied Reservoir Simulation 2E

Part II: Reservoir Simulation 117

Dipping Gas Reservoir
with Aquifer Influx

-8800

4 5 6 7 8 9 10
WINB4D Index I

Figure 12-6. Cross-section of dipping gas reservoir.

irreducible water saturation of 30%. The initial ratio of compressional velocity
to shear velocity (V p l JQ was 1.684. A downdip aquifer provides pressure support
and water invasion as the reservoir is produced.
Figure 12-7 shows the results after one year of depletion with aquifer

Aquifer Influx at 1 Year
Sgr = 0%

WINB4D Block Index

Figure 12-7. Reservoir performance with Sgr = 0%.