Safety Alert
Safety Alert 226 - Pressure Rise to Surface after Cementing Leads to Burst Casing and Loss of Control
Safety Alert 226 - Pressure Rise to Surface after Cementing Leads to Burst Casing and Loss of Control
- BSEE
- Safety Alert
- BSEE Safety Alert 226
- Pressure SystemsProcess Safety
- ExplosionPressure systemsWell controlWell integrity
- DrillingInspection and maintenance
- Upstream oil and gas
Summary
An offshore well lost control when worn surface casing burst following pressure migration from a previously pressure-charged shallow reservoir. Misleading hydraulic gauge readings concealed rising annulus pressure. The alert recommends examining logs and cementing coverage, checking rig alignment and casing-wear indicators, and routinely checking hydraulic gauges for full lines and leaks.
Classifications: Explosion; explosive atmospheres.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Well control; kick control; loss of well control.
Classifications: Well integrity; well life cycle integrity.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
The alert concerns casing rupture following a pressure rise after cementing and resulting loss of control.
BSEE Safety Alert 226. Themes: pressure systems, process safety.