MATERIAL BALANCE EQUATION - II
Performance Prediction For Solution_Gas Drive with Gas_Cap Prod./Injection
INPUT DATA
Title
PVT DATA
Pressure
Oil FVF
B
o
Solution GOR
R
s
Gas FVF
B
g
Oil Viscosity
μ
o
Gas Viscosity
μ
g
Gas Cap
Prod.(+) or Injected (-)
#
psi
rbbl/stb
scf/stb
rbbl/scf
cp
cp
fraction of
total gas prod.
1
0.0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
RELATIVE PERMEABILITY DATA
Total
Liquid
Saturation
S
L
Relative
Permeability
Ratio
(k
g
/k
o
)
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
RESERVOIR DATA
Initial Water Saturation
fraction
Original Oil In Place
bbls
Gas Cap to Oil Pore Vol
ratio
OUTPUT VARIABLES & GRAPHS
Pressure
Cumulative
Oil Production
Instantaneous
Gas Oil Ratio
Cumulative Gas
Production
Krg/kro
Oil Recovery
Factor
Cum. GasCap
Prod./Injection
#
psi
bbl
scf/bbl
10
6
scf
%
10
6
scf
1
2500
0
721.0
0.0
0.0
0.0
0.0
2
2300
249986
578.2
162.4
-0.0022
4.5
0.0
3
2100
495211
1263.2
388.2
0.0158
8.8
0.0
4
1900
696939
2079.9
725.4
0.0375
12.4
0.0
5
1700
876378
2243.2
1113.2
0.044
15.6
0.0
6
1500
1130014
4687.9
1992.2
0.111
20.2
-439.5
7
1300
1301762
6945.9
2991.3
0.184
23.2
-939.0
8
1100
1442742
7925.5
4039.5
0.2308
25.8
-1463.2
9
900
1571644
9410.0
5156.8
0.3122
28.1
-2021.8
10
700
1687734
10242.5
6297.6
0.4053
30.1
-2592.2
11
500
1802921
10021.8
7464.6
0.5138
32.2
-3175.7
12
300
1936738
7896.1
8663.5
0.6227
34.6
-3775.1
13
14
15
MATERIAL BALANCE EQUATION - Solution Gas/Gas Cap Prod./Injection
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