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Thermowell crack

Published on 12/01/24 278 Views

At an off-shore gas plant, a leak from a high-pressure pipe occurred at the location of a thermowell, starting a fire in the insulation. The velocity in a gas cooler heat exchanger was increased, resulting in resonant vibration of the thermowell, causing a fatigue crack.

Ask yourself and your crew:

  • How can something like this happen here (e.g. on our site)?
  • What safety measures (i.e. procedures, controls/barriers) do we have in place to mitigate the risk?
  • How do we know the risk controls/barriers are working?
  • What improvements or changes should we make to the procedures, controls/barriers or the way we work?

Original material courtesy of the European Process Safety Centre