[3C3] 24/7 large-area corrosion monitoring

T Vogt, D Alleyne and R Jones
Guided Ultrasonics Ltd, UK 

Evolving demands in the oil, gas and petrochemical industries necessitate innovative approaches to safeguard mechanical integrity. The worst-case scenario for operators remains the risk of unexpected corrosion-induced wall loss culminating in hydrocarbon release, with all its subsequent consequences. Reliance on periodic risk assessments and sporadic intervention based measurements proves inadequate, exacerbated by restricted site access, travel constraints, escalating labour costs and inherent site hazards. High consequence areas near water bodies are particularly vulnerable, amplifying the urgency for proactive solutions.

In this presentation, we will explore the latest advancements in guided wave technology – a transformative approach seamlessly integrating high accuracy wall thickness measurements with continuous long-range monitoring facilitated by strategically deployed, permanently installed sensors. Guided wave technology delivers a pivotal advantage, enabling comprehensive inspection of a large volume of pipework from a single location. In contrast to one-off inspections, permanently installed sensors enhance corrosion detection sensitivity by up to tenfold.

The implementation of guided wave monitoring ensures round-the-clock oversight of critical areas, empowering pre-emptive maintenance planning and intervention strategies. Moreover, operators can leverage insights derived from guided wave monitoring sensor data to improve profitability by driving operational efficiencies, such as optimising costly corrosion inhibitors and mitigating risks associated with crude oil blending.

Real-world applications, including sensor placement strategy and analysis of cost benefit relationships, will be explored to underscore the practical implications of this transformative technology.