Safety Aspects of a Dry, Subsea Hydrocarbon Production System

This paper discusses the safety aspects associated with maintenance work performed in a dry, one-atmosphere subsea chamber containing oil and gas production equipment. It describes operational hazards related to this concept, hydrocarbon leaks, pressure build-up, requirements and criteria for re-entry, life support and a fire prevention system. The experience gained and the impressive safety record summarize the past twelve years of subsea activity.