Internal Corrosion Management, A Best Practice

Abstract Over the years the oil and gas industry has encountered numerous corrosion phenomena in their internal processes. The dominant internal corrosion mechanisms include CO2, H2S, organic acids, microbial and O2 corrosion. These corrosion mechanisms have been widely studied and corresponding methods for control have been developed to expand operating envelopes. In operations this has led to a common strategy for corrosion management that is linked to other work processes focused on control of integrity and process safety. This paper aims to provide a structured overview of corrosion management in line with industry practice for internal process streams. It outlines a process for corrosion management with references to industry standards and guidelines that can be used for systematic management of corrosion in process streams. The process describes corrosion management as part of process safety and asset integrity management based on a robust materials selection, barrier management and Integrity Operating Window (IOW) control. With emerging industries, the application of this approach can be considered a best practice for which the key elements can be adopted in new industries like CO2 Capture and Storage (CCS) and hydrogen.