Description
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.
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Explanation & Answer
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Preliminary Hazard Analysis (PHA)
High pressure in the hole- the pressure is a physical hazard which is presumed to be
caused by the small diameter of the hole. The consequences can range from the accumulation of
explosive gases to water coming out at an extraordinary speed which can cause floods and hence
disastrous. The pressure is high when the outside pressure is way too high than the pressure
inside the hole. This hazard can be controlled by widening the size of the hole diameter.
Inadequate cementing is another ha...