A risk model has been developed to identify the probability that unacceptable downhole corrosion would occur as the Arun field was depleted. Using the life expectancy estimates for the carbon steel tubing
strings from this model, optimized mitigation strategies could be developed to provide cost-effective alternatives for the management of corrosion.
Keywords: localized corrosion, downhole corrosion, condensate inhibition, corrosion risk model, extreme value statistics, Arun corrosion, life expectancy