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Gas and Liquid Injection Rates 183

3
Mixture Density (Ib/ft )
0 10 20 30 40 50 60 70
0
1000

2000
3000
Depth (ft) 4000

5000

6000
7000
Annular profile
8000
In-pipe profile
9000
Figure 9.5 Calculated density profile along the flow path.

ECD (ppg)
0 5 10 15 20
0
1000

2000
3000
Depth (ft) 4000

5000
6000
7000
Annular profile
8000
In-pipe profile
9000
Figure 9.6 Calculated ECD profile along the flow path.