Depending on the rig’s emergency plan for an H2S release, crew personnel should follow their predetermined instructions. For example, in the event of a blowout or H2S encounter, the driller, derrickman and motorman will put on gas masks. One floorman will notify the toolpusher and company officials. The other floorman will retire to the predetermined muster site, a safe distance from the well on the windward side. The men equipped with gas masks will close all blowout preventers or valves on the casing head.
Respiratory Protection
All personnel whose presence is required on a drilling location where H2S is suspected, will have certified breathing apparatus available to them. Each person must determine his own duration for air consumption from the air pack. Many factors can greatly reduce the rated duration. The person’s size, physical condition, breathing habits, etc., must be considered.
Special Problems in Respirator Use
Safety Reminders
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