Page 280 - Well Control for Completions and Interventions

Well Kill, Kick Detection, and Well Shut-In 273

Tubing pressure:
• Volume pumped 234.5 bbls (10 3/4" x 5 1/2" 1 9 5/8" x 5 1/2"
annulus volume).
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• 4/2 in. tubing capacity 5 125.55 bbls.
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• 234.5 2 125.55 bbls 5 108.95 bbls filling the 5/2 in. tubing.
• 108.95 bbls/0.0232 bbls/ft. (5/2 in. tubing capacity) 5 4696 ft. of
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fluid above the cross-over.
• Oil packer fluid contact in tubing is 4800 2 4696 ft. MD 5
104 ft. MD.
• 104 ft. MD 5 104 ft. TVD.
• Oil hydrostatic 104 ft. 3 0.35 psi/ft. 5 36 psi.
• Packer fluid hydrostatic (10,925 2 104 ft.) 3 0.433 5 4685 psi.
• 5790 2 (36 1 4685) 5 1069 psi
Step 5: Tubing filled with annulus fluid:
• Tubing head pressure:
• 10,925 ft. 3 0.433 psi/ft. 5 4731 psi.
• 5790 2 4731 5 1059 psi.
• Casing head pressure:
• Volume pumped 236.91 bbls (tubing volume).
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• Fluid level in casing. Volume to 5/2 in. 3 4/2 in. cross-
over 5 234.5 bbls.
• 236.91 2 234.5 5 2.41 bbl.
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• 2.41 bbls/0.051 bbls/ft. (9/8 in. 3 4/2 in. annulus) 5 47 ft. MD.
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• Kill fluid at 4800 ft. MD 1 47 ft. MD 5 4847 ft. MD.
• 4847 ft. MD interpolation (using the data supplied in Table 7.1—
well deviation survey) gives a TVD of 4835 ft.
• Kill fluid hydrostatic 4835 ft. 3 0.53 psi/ft. 5 2563 psi.
• Annulus fluid hydrostatic (10,925 2 4835)3 0.433 psi/ft. 5 2638 psi.
• 5790 2 (2563 1 2638) 5 589 psi (Fig. 7.10).
Step 6: Kill fluid reaches SSD:
• Volume pumped 5 annulus volume (655.7 bbls).
• Annulus pressure:
• 10,925 3 0.53 psi/ft. 5 5790 psi.
• Casing pressure 0 psi.
• Tubing head pressure:
• 10,925 ft. 3 0.433 psi/ft. 5 4731 psi.
• 5790 2 4731 5 1059 psi.
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Step 7, Kill fluid reaches 5/2 in. 3 4/2 in. cross-over in tubing:
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• Volume pumped 5 655.7 bbls (annulus volume) 1 125.55 bbls (4/2 in.
tubing volume) 5 781.25 bbls.