Methane levels monitored
06 January 2009
Hazard detection specialist Groveley Detection has built a system to monitor methane levels within seven sea bed risers on FPSO Triton in the North Sea.
Wood Group engineers approached Groveley to design the unique system, which they based around seven Simtronics GD10 infrared flammable gas detectors, each with a 0-100% vol methane, to be fitted into pipe risers on Triton.
Methane levels monitored
The sensors will connect to a Groveley purpose-designed data logger within a flameproof cabinet; data will then be routed to a PC where the information is downloaded and recorded.
Sensors and purpose-built mountings were manufactured in stainless steel and flanges were pressure-rated to maintain the integrity of the risers.
The GD10 infrared gas detectors utilise patented silicon-based, solid-state infrared sources. These sources, which carry a 15 year warranty, are so stable that once a detector is factory calibrated, it needs no adjustment on site during commissioning or through its working life.
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