Risk Analysis Related to the Corrosıon of Atmospheric Storage Tanks: A Multimethodological Approach Using the FRAM and the ELECTRE-MOr Methods

Abstract

AbstractThe storage activity of oil and its derivatives is fundamental in the production chain of the O&G (Oil and Gas) industry, in which ASTs (Aboveground Storage Tanks), commonly constructed using carbon steel materials, are used for this purpose. During the operational life of these assets, corrosion is a factor that, if not controlled, generates risks for industrial environments where the tanks are present. Therefore, this work aims to propose a new methodology for assessing risks related to atmospheric corrosion in storage tanks, by applying this framework in ASTs located in a tank farm and sorting the tanks into risk classes. A multi-methodological approach was adopted, in which the FRAM was used to structure the problem and with the literature review, they served as the basis for the definition of evaluation criteria. The ELECTRE-MOr method was applied, using collected data referring to the defined criteria, and using the ELECTRE-MOr WEB software the tanks were classified into three risk classes. It was observed that the method was consistent in pointing out the tanks with the most critical criteria in the “high risk” class, with one special surprise in pointing out a tank that apparently did not need attention in this same class. The application proves to be feasible and can be improved and used as a basis for intervention campaigns in these assets.KeywordsRisk analysisStorage tanksAtmospheric corrosionFRAMResilience engineeringELECTRE-MorMCDM methods