51313-02716-Corrosion Threats—KPIs Based on a Combined Integrity Management and Barrier Concept

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Product Number: 51313-02716-SG

ISBN: 02716 2013 CP

Author: Brit Kathrine Graver

Publication Date: 2013

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Corrosion is the most common threat resulting in leakage (burst or pinhole leak) of submarine pipelines. Industry practice shows that mostly it is the lack of a robust integrity management system that leads to these failures. A corrosion integrity management system consists of a continuous improvement process (threat identification inspection planning assessment and mitigation) with supporting management processes.

Barriers are any kind of measure put in place to prevent a hazardous event (preventive barriers) and any measure that breaks the chain of events to prevent or minimize consequence escalation should the hazardous event take place (reactive barriers). Such measures can be physical/technical and/or non-physical (human/operational/organisational). Barriers can be illustrated in a so-called bow-tie diagram.

Little focus has been on how the preventive barriers are organized most focus has been on the reactive barriers. In the present work focus has been on defining and systemizing the preventive barriers and identify relevant key performance indicators (KPI). The threats as regard to corrosion may be easier monitored. The barriers must be seen in connection with a robust implemented integrity management system. Practical examples illustrating the importance that the barriers function as intended will be given.