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Deepwater Horizon - Coggle Diagram

- - - - Geological considerations of the earth below at 30,000 feet
  - - - Damage to the local economy as a result of oil spill (United States Coast Guard 2011)
- - - - Brian Morel - BP Drilling Engineer
        
        Previous experience with Mondaco Wells
      - Mark Haffle
      - Engineers approach design from a theoretical perspective, not always considering practicality
        
        Can contribute to system failures
        
        Creates system vulnerabilities such as a lessened tolerance for human error
    - - 1989 IMO MODU Code (United States Coast Guard 2011)
      - Statutory certificates (United States Coast Guard 2011)
    - - Engneers did not allow sufficient resources in the design to protect all crew from large blasts
        
        Design failure
    - - Resource
        Conservation and Recovery Act of 1876 (Smith M. Smith L. et al. 2001)
      - Clean Air Act - CAA (Smith M. Smith L. et al. 2001)
      - Clean Water Act (Smith M. Smith L. et al. 2001)
      - Emergency Planning and
        Community Right to Know Act (Smith M. Smith L. et al. 2001)
      - Toxic Substances
        Control Act (Smith M. Smith L. et al. 2001)
    - - "fail-safe mechanism designed to close the channel through which oil was drawn" (Pallardy R 2010)
        
        BOP Malfunctioned
        
        Design failure
        
        Engineers did not account for the extremities of the pressure of rising gas and oil
        
        The system was not equipped to handle the pressure resulting in failure
  - - - Material longevity
    - - Cost
      - $365 million to build (Smith M. Smith L. et al. 2001)
    - - Cost of labour
  - - - Conducted by its flag state, RMI, used the American Bureau of Shipping and Det Norske Veritas as recognized organizations for audits and data collection (United States Coast Guard 2011)
      - USCG performed periodic safety examinations including verifying statutory certificates, testing of safety devices, and witnessing emergency drills (United States Coast Guard 2011)
    - - accuracy must be considered
  - - - Clean up costs of any oil spills into the Mexican Gulf
- - - - Anadarko Petroleum
      - MOEX USA
  - - - Individual risk assessment
- - - - Economic factors
        
        BP had a high stake investing so much into the rig and needed to make good returns
  - - - Uncertainty of level of risk mat have contributed to magnitude of explosion and fires
- - - - Rotation/FIFO workers leaving site
      - Day shift interchange with night shift
    - - System failure - part of the operation is completely dependent on human communication
- - - - Evacuation means available for everyone
      - Sufficient room to prevent crowding