Gas Cooler Remaining Life Assessment


Gas Distribution Company


New Zealand



A Logicamms Project
LogiCamms conducted an inspection of the gas coolers to determine their remaining operational life expectancy.

The scope of works included carrying out internal and external inspections of the headers and tubes plus structure, and providing a report on the operational life expectancy of the coolers.

An internal videoscope inspection was completed that identified significant internal deposits and the potential for under-deposit corrosion to occur, which would substantially shorten the remaining life of the assets.

LogiCamms made a recommendation to remove the deposits via a chemical cleaning, which removed a significant volume of deposits. The result was an increase in remaining life expectancy from 5–8 years to 10–15 years.

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