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Gas Compressors 141

Velocity (ft/s)
0 20 40 60 80 100
0
1000
2000
3000
Depth (ft) 4000 Annular profile
In-pipe profile
5000
6000
7000

8000
9000
Figure 6.2 Calculated velocity profile.

3
Density (lbm/ft )
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
0
Annular profile
1000
In-pipe profile
2000
3000
Depth (ft) 4000

5000
6000

7000
8000
9000
Figure 6.3 Calculated gas density profile.

(Continued )