Page 376 - Fundamentals of Reservoir Engineering

NATURAL WATER INFLUX 311

r = 9200’ 140° sealing fault
o

r?
e

Fig. 9.10 Aquifer-reservoir geometry, exercise 9.2

Properties common to the reservoir Reservoir properties
and aquifer

6
h = 100 ft N = 312×10 stb
k = 200 mD S wc = 0.05
= 0.55 cp (PVT data are plotted in figs. 9.12
µ w
φ = 0.25 and 9.13 and listed in table 9.3)
-6
= 3.0×10 /psi
c w
-6
= 4.0×10 / psi
c f
= 1.0
B w

PRESSURE N R p
p
Psia MMstb scf/stb
2800

2400
Pressure
2000 100

1600 80 1000
R
1200 60 p 800

800 40 600
N p
400 20

0
0 1 2 3 4 5 6 7 8 9 10
TIME (years)

Fig. 9.11 Reservoir production and pressure history; exercise 9.2