Transocean Deepwater Horizon Major Accident Hazard Risk Assessment

Transocean Holdings LLC

  • 6 pages
  • August 29, 2004


From August 4, 2003 to August 8, 2003, a team of personnel from Transocean performed a Major Accident Hazard Risk Assessment on the Deepwater Horizon.

The purpose of the study was to demonstrate that adequate controls are in place so that HSE risks on the Deepwater Horizon can be considered both tolerable and ALARP (As Low As Reasonably Practicable). In order to accomplish this, the hazards that might lead to a Major Accident were identified and measures shown to be in place to eliminate the hazards or mitigate the consequences of the hazards.

The study team examined hazards associated with individual compartments, critical systems, and the entire installation.

During the entire Major Accident Hazard Risk Assessment, the team developed twenty seven (27)
recommendations. None of the recommendations were for hazards ranked ‘High’ Risk, nine (9) were for
hazards ranked as ‘Medium’ Risk, fourteen (14) were for hazards ranked ‘Low’ Risk, and four (4) were

Each recommendation from the assessment will become an Action Item and assigned to a Responsible
Person. Each recommendation will require follow up after which the results of the actions will be
recorded and the report reissued. If no action was taken for a given recommendation, a reason must be

Share this: