Safety Alert
Safety Alert 70 - Blowout During Workover
Safety Alert 70 - Blowout During Workover
- BSEE
- Safety Alert
- BSEE Safety Alert 70
- Hydrocarbon ReleaseProcess Safety
- Mechanical failureWell control
- Well intervention
- Valve
- Functional testing
- Upstream oil and gas
Summary
A workover well apparently swabbed in while a perforation wash tool was being withdrawn. A safety valve failed to close; sand in its working parts could have contributed. The alert recommends mud monitoring during pipe tripping, reserving safety valves for well control and checking valve operation before withdrawal.
Classifications: Mechanical failure; equipment failure.
Classifications: Well control; kick control; loss of well control.
Classifications: Well intervention; workover; well servicing.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
BSEE Safety Alert 70. Themes: hydrocarbon release, process safety.