Page 283 - Well Control for Completions and Interventions

276 Well Control for Completions and Interventions

Table 7.10 Summary of well kill steps
Step Volume Cumulative Tubing head Casing
pumped volume pressure head
(bbls) (bbls) (psi) pressure
(psi)
Before kill (SSD open) and 0 0 2904 1059
casing pressure applied
1. Oil to surface 81.2 81.2 1664 926
2. Kill fluid in the annulus at 37.4 118.6 1492 865
5
3
10/4 in. 3 9/8 in.
cross-over
3. Annulus fluid in tubing 6.95 125.55 1457 849
at 5/2 in. 3 4/2 in.
1
1
cross-over
4. Kill fluid in annulus at 108.95 234.5 1069 595
depth of 5/2 in. 3 4/2 in.
1
1
cross-over
5. Tubing filled with annulus 2.42 236.91 1059 589
fluid
6. Kill fluid at SSD 418.79 655.7 1059 0
7. Kill fluid at 125.55 781.25 560 0
1
5/2 in. 3 4/2 in. cross-over
1
8. Full circulation 111.36 892.61 0 0

3500
Tubing pressure
Casing pressure
3000

2500

Pressure (psi) 2000

1500

1000

500

0
0 100 200 300 400 500 600 700 800 900 1000
Volume pumped (bbls)
Figure 7.12 Plot of volume pumped versus tubing and casing pressure.