The simultaneous expansion of AC/DC transmission networks, electrically powered transportation systems, and oil and gas pipeline infrastructure has led to increased spatial overlap between these systems. This growing vicinity significantly increases the risk of corrosion due to electrical interference, particularly from AC sources, which pose a newer and more complex challenge compared to the well-understood effects of DC interference. Addressing these risks often requires technically robust and costly solutions.
This paper stems from a project originally aimed at developing standardized blueprints for mitigation system of electrical interferences. The study found that while standardization is feasible for very simple interference scenarios, more complex interactions require tailored evaluations and sound engineering and economic judgment, underscoring the need for a framework to guide decision-making regarding treatment of electrical interferences.
To address this need, the paper proposes a structured, industry-aligned approach for managing electrical interference in buried pipelines. It introduces a two-tier framework that integrates technical components (such as corrosion risk assessment) with business management principles, including ALARP-based decision-making.
By aligning technical rigor with cost-effectiveness, the proposed approach offers a scalable and adaptable solution. It serves both as a practical guide for mitigating straightforward cases and as a flexible framework to support informed, case-by-case decisions, ultimately contributing to safer and more reliable pipeline operations.