Discharge flange connection from high pressure gas compressor - Safety Moment

An inspection crew was conducting a proactive inspection of a gas export system using an infrared camera which looks for very small leaks (fugitive emissions). A small leak was observed around the flange using an infra red camera. A gas meter was applied and readings confirmed >20% LEL (Lower Explosive Limit) mix of gas and air at 0.5m from the leak point. It was decided there was a risk of this escalating to a larger, more hazardous leak.

A LEAK Aware tag was added to the flange. An immediate decision was taken to shut down the gas compressor. The leak was repaired and the unit was safety returned to service after testing.