Ten Injured in ONGC Offshore Platform Fire: Emergency Response Review
A fire broke out on an Oil and Natural Gas Corporation process platform in the Mumbai High field, approximately 160 kilometers off the coast of Maharashtra, India, injuring ten platform workers and forcing the emergency evacuation of 94 personnel. The blaze originated in a gas compression module and burned for approximately six hours before being brought under control by firefighting vessels. Production from the affected platform — approximately 18,000 barrels of oil per day — was shut in for the duration of the emergency and remained offline during damage assessment. The incident is the latest in a series of safety events at the aging Mumbai High complex, India's most productive offshore oil field.
What Caused the Platform Fire?
ONGC's preliminary investigation points to a gas leak from a high-pressure compressor seal that ignited on contact with hot surfaces in the compression module. The compressor unit was 28 years old and had been flagged for replacement in ONGC's 2024 asset integrity review, but procurement delays pushed the replacement timeline to late 2026.
The gas leak escalated rapidly due to wind conditions that directed the released gas toward the platform's process area rather than dispersing it safely. The platform's automated gas detection and emergency shutdown system activated within 90 seconds of initial detection, shutting down process flows and isolating the affected module. However, the fire had already spread to cable trays and structural steelwork before suppression systems could contain it.
How Was the Emergency Evacuation Conducted?
The platform's 94 personnel were mustered and evacuated via two routes: helicopter airlift for 36 personnel including the ten injured workers, and lifeboat deployment for the remaining 58 personnel who transferred to a nearby accommodation vessel. The evacuation was completed within 2.5 hours of the fire alarm — within the target time established by ONGC's emergency response plan but complicated by smoke conditions that temporarily blocked access to one of the platform's two lifeboat stations.
The Indian Coast Guard deployed two offshore patrol vessels and a Dornier maritime surveillance aircraft to coordinate the emergency response. ONGC's dedicated emergency response vessel, stationed at the Mumbai High field, arrived on scene within 45 minutes and deployed its fire monitors to supplement the platform's fixed firefighting systems.
What Is the Safety Record at Mumbai High?
The Mumbai High field has been in production since 1976, and many of its original platforms are approaching or exceeding their 40-year design life. ONGC operates 162 platforms in the field, of which approximately 60 are classified as life-extended assets operating beyond their original design parameters. The field has experienced multiple significant safety incidents, including the 2005 Mumbai High North platform fire that killed 22 workers when a multi-purpose support vessel collided with a platform riser, triggering an explosion and fire.
India's Directorate General of Hydrocarbons conducted a safety audit of Mumbai High in 2023 that identified 347 high-priority maintenance items across the field's platforms, with approximately 40% related to aging process equipment, corrosion management, and fire suppression system integrity.
What Changes Are Needed in Offshore Safety Management?
The recurring pattern of safety incidents at aging offshore installations is not unique to ONGC. Globally, approximately 30% of offshore platforms are operating beyond their original design life. The UK Health and Safety Executive's approach — requiring formal Safety Case reviews for life extension beyond design life — provides a regulatory model that India's offshore regulatory framework has not fully adopted.
ONGC's asset integrity management program requires acceleration, with priority given to replacing aging compressors, updating gas detection systems, and ensuring that emergency evacuation routes remain clear under all fire scenarios.
Conclusion
The Mumbai High platform fire is a consequence of deferred maintenance on aging infrastructure in a field that remains critical to India's domestic oil production. The emergency response demonstrated that ONGC's evacuation procedures function under pressure, but the root cause — a 28-year-old compressor that should have been replaced years earlier — reflects a systemic prioritization of production continuity over asset integrity investment. As India's offshore fleet ages further, the frequency and severity of such incidents will increase unless maintenance backlogs are addressed with the urgency they demand.