Dropped objects hazards analysis

Process Hazards Analysis (PHA) techniques were developed for the onshore chemical and refining industries. These industries typically work with a much wider range of chemicals than are used offshore, and many of those chemicals are highly toxic and/or corrosive—something that is rarely a major consideration offshore. Therefore, the use of onshore-style PHA methods when analyzing the risks associated with offshore facihties can feel like something of a misfit. Where possible, these techniques should be modified so that problems to do with hazardous chemicals receive less prominence, but other issues, such as dropped objects and escape and evacuation routes, are analyzed more thoroughly. 

The consequences associated with a subsea-dropped object can be categorized and used in a hazards analysis as follows ... 

The different types of hazards analysis that have been carried out, and the recommendations and actions from each. The analyses can cover issues such as dropped objects from cranes or release of gas from a high pressure system. 

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