Page 179 - Well Logging and Formation Evaluation
P. 179
Reservoir Engineering Issues 169
Q
T + dT
Time
T
dT
Pi
Pw
Ln[(T + dt)/dt]
Figure 11.5.1 Pressure Buildup Analysis
Table 11.5.2
Example of pressure buildup
Time (hr) Pressure (bar)
0 205.32
0.5 217.89
1.0 221.95
1.5 223.05
2 223.53
2.5 223.81
3 223.96
4 224.20
6 224.48
8 224.68
10 224.82
12 224.96
