Page 279 - Well Control for Completions and Interventions

272 Well Control for Completions and Interventions

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Step 2 Kill fluid in the annulus at the 10/4 in. 3 9/8 in. cross-over:
• The kill weight fluid was at 1369.3 ft. MD when the oil reached
surface. The cross-over depth is 2000 ft. MD.
• 2000 2 1369.3 5 630.7 ft. 3 0.0593 bbls/ft. 5 37.4 bbls.
• An additional 37.4 bbls needs to be pumped to get kill fluid to the
cross-over.
• Oil/packer fluid contact in tubing:
• 37.4 bbls/0.0152 bbl/ft. (4/2 in. tubing capacity) 5 2461 ft.
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• 7718-2461-5257 ft. MD.
• Annulus pressure:
• 2000 ft. 3 0.53 psi/ft. 5 1060 psi.
• (10,925 2 2000 ft.) 3 0.433 psi/ft. 5 3865 psi.
• Casing head pressure: 5790-(1060 1 3865) 5 865 psi.
• Tubing pressure:
• MD of the oil/packer fluid contact is 5257 ft. Interpolation using the
data supplied in the well deviation survey gives a TVD of 5217 ft.
• Oil hydrostatic 5217 ft. 3 0.35 psi/ft. 5 1826 psi.
• Packer fluid hydrostatic (10,925 2 5217 ft.) 3 0.433 psi/ft. 2472 psi.
• 5790 2 (2472 1 1826 psi) 5 1492 psi.
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Step 3, oil/packer fluid contact in the tubing reaches the 5/2 in. 3 4/2 in.
Cross-over:
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• The 5/2 in.3 4/2 in. tubing cross-over is at 4800 ft. MD (4790 ft. TVD).
• Tubing head pressure:
• Oil hydrostatic 4790 ft. 3 0.35 psi/ft. 5 1677 psi.
• Packer fluid hydrostatic (10,925 2 4790 ft) 3 0.433 psi/ft. 5 2656 psi.
• 5790 2 (1677 1 2656) 5 1457 psi.
• Annulus pressure:
• Volume pumped 125.55 bbls (4/2 in. tubing volume).
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• Annulus volume to 10/4 in. 3 9/8 in. cross-over 5 118.6 bbls.
• 125.55-118.6 5 6.95 bbls.
• 6.95 bbls/0.0414 bbls/ft 5 168 ft.
• Kill fluid at 2000 ft. 1 168 ft. 5 2168 ft. MD (2168 ft. TVD).
• Kill fluid hydrostatic 2168 ft. 3 0.53 psi/ft 5 1149 psi.
• Packer fluid hydrostatic (10,925 2 2168 ft.) 3 0.433 psi/ft 5 3792 psi.
• Casing head pressure: 5790-(1149 1 3792) 5 849 psi.
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Step 4, kill fluid in annulus at 5/2 in. 3 4/2 in. tubing cross-over:
Annulus pressure:
• Kill fluid hydrostatic 4790 ft. 3 0.53 psi/ft. 5 2539 psi.
• Packer fluid hydrostatic (10,925 2 4790 ft.) 3 0.433 psi/ft. 5 2656 psi.
• 5790 2 (2539 1 2656) 5 595 psi.