Research Article
The Mechanism of Wellbore Weakening in Worn Casing-Cement-Formation System
Table 3
Fluid temperature and burst pressure for six cases.
| | | Wellbore fluid temperature (°F) | Formation temperature (°F) | Initial temperature (°F) | Burst pressure (psi) | Rock in situ stress (psi) | Casing |
| | Case 1 | 350 | 350 | 350 | 12,500 | 11,000 | Perfect | | Case 2 | 350 | 350 | 350 | 12,500 | 11,000 | Worn | | Case 3 | 450 | 350 | 350 | 12,500 | 11,000 | Worn | | Case 4 | 450 | 350 | 350 | 13,500 | 11,000 | Worn | | Case 5 | 450 | 350 | 350 | 14,500 | 11,000 | Worn | | Case 6 | 450 | 350 | 350 | 13,500 | 0 | Worn |
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