Pipeline Corrosion Monitoring Affected by Dynamic Interference

Materials Performance Magazine, September 2024

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Article written by Angel R. Kowalski and Jason Charles Land, DNV USA, Inc., Dublin, Ohio, USA, and W. Brian Holtsbaum, DNV Canada, Calgary, Alberta, Canada.

Cathodic protection (CP) testing is a challenge in pipeline/power line corridors. Misinterpretation of data or unreliable data can lead to either ineffective or excessive mitigation programs for these pipelines. Additional testing over conventional CP surveys may also be required. The variation of the structure-to-electrolyte potentials and the effect of polarization cell replacement units can influence the results and conclusions on the polarization of the pipeline. To address these effects, data from a case study is analyzed to illustrate added testing procedures.

This article was published in the September 2024 issue of Materials Performance, www.materialsperformance.com, and is AMPP-copyrighted intellectual property.

No part of this publication may be printed, shared, reproduced, republished, sublicensed, stored in a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP.

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