Safety Alert
Safety Alert 230 - Equipment Failure on Deepwater Rig While Running Casing in Open Waters
Safety Alert 230 - Equipment Failure on Deepwater Rig While Running Casing in Open Waters
- BSEE
- Safety Alert
- BSEE Safety Alert 230
- Machinery and Equipment
- Dropped objectsMechanical failure
- DrillingInspection and maintenance
- Functional testingJob safety analysis
- Upstream oil and gas
- Offshore installation
Summary
A deepwater casing deployment lost the casing, inner cement stinger and wellhead after rotary slips apparently released the landing string. Missing operational data prevented root-cause determination. The alert describes changes to casing length and landing-string arrangements, and recommends considering dynamic stress analysis, recording hook loads, identifying stand-down conditions and inspecting handling tools.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Functional testing; function test.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Summary
An equipment failure occurred on a deepwater rig while casing was being run in open waters.
BSEE Safety Alert 230. Themes: machinery and equipment.