Piper Alpha Oil Rig Disaster
The Worst Oil Rig Accident in History
Share Article | Aug 17, 2009 Kevin Guthrie
The Piper Alpha platform was destroyed in 1988 by a series of explosions. The North Sea oil rig accident cost more lives than any other offshore disaster.
The Piper Alpha oil rig disaster, which occurred in 1988, remains the worst ever oil rig accident. Of the 226 mean on board the platform at the time only 61 survived. Two crewmen on a rescue boat also perished and 30 bodies were never recovered.
The Piper Alpha Oil Rig
Piper Alpha, located around 120 miles north east of Aberdeen, started oil production in 1976. By 1988 the platform was producing both crude oil and natural gas. The platform was of modular construction, with the control room sited as far away as possible from the dangerous drilling area. When the platform was modified to produce gas the huge condensate pumps, which pressurised the gas, were located near the control room and this was to play a critical role in the disaster. Piper Alpha was owned and operated by Occidental Petroleum.
Cause of the Oil Rig Accident
Due to their remote locations any oil rig accident is serious, but circumstances combined on Piper Alpha to produce a disaster of devastating proportions. In the accident the platform was almost completely destroyed, but investigators were able to trace the cause to a missing component on a condensate pump.
The pressure safety valve on condensate pump A was removed for maintenance. Paperwork was completed by the engineer prohibiting the pump from being used in the meantime, but this was either lost or misplaced. This event laid the foundation for the worst oil rig accident in history.