Optimisation of maintenance and inspection programmes through risk analysis can be used for coating maintenance. The risk picture can be described by 1) Scenario, 2) Frequencies, and 3) Consequences, for protective coatings. A systematic approach for optimisation of the maintenance programme has been developed.
Various solutions implemented to achieve effective corrosion control in above ground crude oil storage tanks have been described to evaluate effectiveness of the implemented solutions. The effectiveness of the implemented corrosion control methods has been evaluated over a period of more than twenty years.
An improved sour corrosion model was developed based on: • A bare steel sour electrochemical corrosion model, derived from published literature • Mechanisms that affect scale performance and trigger localised corrosion • A specific elemental sulphur degradation mechanism • Corrosion mitigation strategy