IMCA Safety Flash SF 23/27
IMCA Safety Flash SF 23/27
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Compressed air rather than oxygen supplied to divers
What happened
Several divers were affected and two divers became ill when compressed air rather than oxygen was supplied to them by mistake on their BIBS (Built in Breathing System). The error caused two lymphatic/skin decompression illnesses and incorrect decompression profile for several other divers.
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Failure of proportional valve in saturation chamber control
What happened
There was a failure during saturation diving operations. There were no injuries to personnel nor damage to equipment, but time was lost. The automatic control system for the hyperbaric chamber detected that there was a proportional valve command/feedback discrepancy and stopped pressure control of the hyperbaric chamber. The valve malfunction forced an abort of diving operations and lost time.
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Case study: saturation diver fatality due to hydrogen Sulphide
This is a very brief summary of a 2021 case report on the much earlier death of a saturation diver in the Bombay High oilfield, which occurred as a result of Hydrogen Sulphide poisoning. It is included as a reminder of the danger of Hydrogen Sulphide and as a means to facilitate discussion. The full case study, prepared by Dr Ajit C Kulkarni, of Hyperbaric Solutions, Mumbai, India, can be found here.
What happened
The incident happened on board a vessel operating in an offshore oil field, on a long charter for carrying out inspection, maintenance and repair duties. An oil leak was discovered in one of the main 36-inch (91cm) diameter subsea lines carrying sour crude. The vessel was directed to proceed to the site and carry out pipeline repairs on an emergency basis at 74 msw depth.
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Case study: saturation diver fatality due to hydrogen Sulphide
Case study: confined space fatalities due to Hydrogen Sulphide
This is a brief summary of a recent case report on confined space fatalities on board an oil rig during work involving gas sampling/monitoring inside the “spud cans” of the rig.
It is included as a reminder of the danger of Hydrogen Sulphide and as a means to facilitate discussion. The full case study, prepared by Dr Ajit C Kulkarni, of Hyperbaric Solutions, Mumbai, India, can be found here.
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Case study: confined space fatalities due to Hydrogen Sulphide
