Abstract

Corrosion is the destructive chemical attack, abrasive action of tidal waves, and microbial attacks upon a metallic structure by its environment, and it is the commonest electrochemical phenomenon that is experienced in day-to-day activities of offshore oil and gas production. Corrosion control of metallic structures is an important activity in technical, economic, environmental and safety terms. The negative impacts of corrosion are so enormous, and it is therefore imperative for oil and gas industry, particularly offshore industry to have corrosion awareness in their daily activities with a view to providing corrosion protection of offshore structures, and ensure safe and productive drilling operations. This review discusses extensively multi-component synthetic organic compounds and phytochemicals of green inhibitors with S, N and O functionalities in their structure, for use as corrosion inhibitors against the corrosion of offshore oil and gas production facilities such as pipelines and storage containers in corrosive media, stressing specifically their synthesis (where applicable), properties and efficiency of inhibitors. Also addressed in this review are the future challenges in flow assurance due to the formation of gas hydrates in flowline, especially for offshore oil and gas production. The corrosion performance tests are extensively discussed.

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