Safety Alert
Safety Alert 140 - Uncontrolled Well Flow and Pollution During Workover Operations
Safety Alert 140 - Uncontrolled Well Flow and Pollution During Workover Operations
- BSEE
- Safety Alert
- BSEE Safety Alert 140
- Control of WorkEnvironmentHydrocarbon Release
- Environmental protectionHydrocarbon releaseWell control
- Inspection and maintenanceWell intervention
- ValveWellhead
- Competence and trainingOperating and work proceduresSimultaneous operations coordination
- Upstream oil and gas
Summary
During reperforating, leaking casing hanger anchor screws were removed without securing the well, leading to uncontrolled flow and approximately 50 barrels of pollution. The platform was evacuated. The alert reiterates requirements for qualified, certified repair personnel, separation from downhole operations and management approval of procedures for repairs to unsecured wells.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Well control; kick control; loss of well control.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Well intervention; workover; well servicing.
Classifications: Valve; valves.
Classifications: Wellhead; well head.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Operating and work procedures.
Classifications: Simultaneous operations coordination; SIMOPS; simultaneous operations.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
The alert concerns uncontrolled well flow and resulting pollution during workover activities.
BSEE Safety Alert 140. Themes: control of work, environment, hydrocarbon release.