Using the information from Deep Water Horizon explosion and the PHL you constructed,
Part 1 Preliminary Hazard List (PHL) Table
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Preliminary Hazard List (PHL) Project: Deepwater HorizonDate: 8/19/2018 Prepared by: |
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Hazardous Event |
Hazard Category |
Causes |
Consequences |
Recommendations |
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High pressure in the hole. |
Physical |
The small diameter of the hole. |
Accumulation of explosive gasses |
Widening of the hole |
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Inadequate cementing |
Mechanical |
Lack of a cementing evaluation log. |
Reduction of cement quality down the casing |
Use of an evaluation log. |
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Misinterpretation of the pressure tests |
Human |
Lack of test assessment tools |
Invalid and wrong conclusions |
Employment of more than one tool for assessing the tests. |
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The rise of reservoir fluids and hydrocarbons at the rig floor |
Chemical |
Lack of an efficient monitoring system |
Ignition of reservoir fluids and associated gasses |
Development of a good working monitoring system. |
Now take the PHL you made in part 1 of this case study and construct a detailed Preliminary Hazard Analysis (PHA) on each item on your PHL. Realize that the PHA takes what your brainstorming session came up with in the PHL and gets a little more into the weeds with such things as causal factors, consequences, and relative risk. These are the things you should focus on in a one to two-page report to your boss. Use the Risk Assessment Matrix to quantify the risks you identify.
