Hyperbaric Solutions, Mumbai, India.
Corresponding author: Dr Ajit C Kulkarni, Hyperbaric Solutions, 3 A, Siddhivinayak Chambers, Bandra East, Mumbai 400051, India,
Diving Hyperb Med. 2021 Mar 31;51(1):94-97. doi: 10.28920/dhm51.1.94-97.
In the offshore oil industry, Multipurpose Support Vessels with extensive diving capability are used for inspection, maintenance and repair of subsea pipelines. The diving industry has developed systemic safety checks and strict regulatory control after a number of fatal accidents in early years. However, accidents do continue to occur and, when involving divers in the water, are often fatal. Hydrogen sulphide (HS), called 'sour gas' in an oil field, is produced by the action of anaerobic bacteria on sulphate containing organic matter. A highly toxic gas, it remains a constant danger for offshore oil industry workers who must remain vigilant. Crude oil and gas produced in these oilfields is called 'sour crude' and pipelines carry this crude with varying content of dissolved HS to shore for processing. Divers are routinely called to attend to leaking pipelines and come in contact with this crude. Their hot water suits and umbilical lines are often covered with crude containing dissolved HS. There is always a possibility that these may enter and contaminate the bell environment. Such a case leading to fatality is reported here.
在海上石油行业中，多用途支持船具有广泛的潜水能力，用于检查、维护和修复海底管道。潜水行业在早年发生了几起致命事故后，已经制定了系统的安全检查和严格的监管控制。然而，事故仍在继续发生，而且当水中有潜水员时，往往是致命的。硫化氢（HS），在油田中称为“酸性气体”，是由厌氧菌对含硫酸盐的有机物的作用产生的。这种气体毒性很高，对于必须保持警惕的海上石油行业工人来说，仍然是一个持续的危险。这些油田生产的原油和天然气称为“酸性原油”，管道将含有不同溶解 HS 含量的原油输送到岸上进行加工。潜水员通常被召集来处理泄漏的管道，并接触到这种原油。他们的热水服和脐带经常覆盖着含有溶解 HS 的原油。这些原油有可能进入并污染钟罩环境。这里报告了一个导致死亡的案例。
