FROZEN HEAT | Volume 2
Production rates, kilograms per second
Temperature (C°)
40 Pressure, Megapascals
25
25
A
B
20
20
30
15
15
20
Temperature
10
10
10
Pressure
Water CH
Water
5
5
4+
CH
4
0
0
0
500
1000
1500
0
0
500
1000
1500
Time, days
Time, days
Vertical displacement, metres
Effective principal stress, Megapascals
0
40
C
D
-0.5
30
σ
1
-1
-1.5
20
-2
σ
10
2
-2.5
-3
0
0
500
1000
1500
500
1000
1500
Time, days
Time, days
Figure 3.6: This figure shows first order reservoir simulation modeling to assess the response of a gas hydrate reservoir to depressurization-based production (Moridis et al., 2011). Frame A shows gas and water production rates, frame B shows reservoir pressure and temperature evolution, frame C shows ground surface settlement and frame D shows changes in the stress regime of the reservoir.
FROZEN HEAT 74
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