Investigation Report

2012-104 Investigation of February 23, 2012, H2S Gas Release Platform Hidalgo, OCS-P 0450 Pacific OCS Region

BSEEBureau of Safety and Environmental Enforcement2012-104

2012-104 Investigation of February 23, 2012, H2S Gas Release Platform Hidalgo, OCS-P 0450 Pacific OCS Region

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Summary

Investigates a hydrogen sulphide release at Platform Hidalgo offshore California, with no reported injuries. Examines failed pipework, oxygen contamination and elemental sulphur formation, alongside limitations of point-specific ultrasonic inspection. Includes radiographic follow-up, thickness-monitoring arrangements and five-year inspection recommendations, plus historical Hermosa findings and emergency-response recommendations.

Topics

About This Record
Publisher
Bureau of Safety and Environmental Enforcement
Type
Investigation Report
Reference
2012-104
Date
Unknown
Topic
Corrosion, Hydrogen Sulphide, Loss of Containment, Structural and Asset Integrity
Activity
Inspection and Maintenance
Equipment
Breathing Apparatus, Gas Detector, Process Pipework and Pipelines
Control
Emergency Response, Functional Testing, Non-Destructive Testing, Preventive Maintenance
Sector
Upstream Oil and Gas
Setting
Offshore Installation
Link
Checked , working
Record
bsee-2012-104 · added 2 October 2026

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