Petromar V

Rig:

Petromar V Drillship

Date:

27 Aug 1981

Location:

Off Natuna Island, South China Sea

Operator:

Mobil

Summary

The Petromar V drillship was drilling in the South China Sea when it encountered a shallow gas pocket. The well suffered an uncontrolled sub-sea blowout which eventually caused the capsize of the drill-ship. Several factors have been quoted as contributing to the incident, including the failure of the diverter and improper rig selection. No further details of the incident.

Sources:

Scherrer Institut: Severe Accidents in the Energy Sector PDF document
Offshore Oil and Gas: Technology Update PDF document
John Wright Company: Shallow Gas Blowouts
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