Deepwater Horizon – Saviours Beware

 Accident, explosion, fire, maritime safety, offshore, offshore  Comments Off on Deepwater Horizon – Saviours Beware
Apr 292010

Vessels responding to situations like that of Deepwater Horizon may encounter unexpected hazards with which they are unfamiliar and which are not immediately apparent.

A respondent on the gCaptain forum, Nomad, warns: “For any mariners responding to distress calls in circumstances such as this, it’s a good idea to stop – look – listen – before approaching too close. In this specific case, the venting hydrocarbons were ablaze, but in some cases there is no fire, just an uncontrolled flow. The presence of high concentrations of hydrogen sulfide gas is always a consideration, even with oil blowouts as there is often a gas component to the reservoir fluid.”

Hydrogen Sulphide, H2S, dangers are well known to offshore workers and vessels servicing them are usually equipped with H2S meters and alarms but others, such as fishing vessels will not. H2S is characterised by a ‘rotten eggs’ smell but the gas itself can disable the sense of smell in higher concentrations.

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Safety Alert – Don’t Get Sloppy With H2S

 maritime safety  Comments Off on Safety Alert – Don’t Get Sloppy With H2S
Jul 262009

A vessel loaded slops from a North Sea installation, believing it to be “grey-black muddy water”, as it was so described on the analysis report, being free from H2S and explosive gas. However, upon arrival for discharge ashore, it was discovered that the slops were contaminated and had a ‘moderate’ H2S content of 25ppm. Further, it subsequently emerged that this was the
fourth such instance in ten days. The health risks to the crew and contractors are obvious.

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