Linear Anode for Pipeline Rehabilitation – Thirty Years Later

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There is a long and successful history of using linear anodes to cathodically protect older generation pipelines with aging coatings. The use of linear anodes to address poor cathodic protection distribution has proven to be easier and more cost effective than large scale recoating projects. While the use of linear anodes is common in the United States, there are many similar vintage pipelines in Europe, the Middle East and Asia which struggle with the same challenges and for whom this technology should be of great interest.

Product Number: MECC23-19993-SG

Author: Ted Huck

Publication Date: 2023

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This paper will detail the thirty year history of the use of linear anode anodes to protect older generation pipelines with aging coatings. The presentation will discuss the original polymeric linear anode and the, product's history of evolution to today's MMO coated titanium wire anode. The paper will then discuss aging pipelines and the problem that creates for the effective application of cathodic protection. The paper will briefly discuss recoating as an option before diving into the application of linear anodes including installation methodologies and design considerations. The paper will then present some case stories and examples of successful installations.

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Product tags

cathodic protection (356)
,
current distribution (8)
,
installation (11)
,
disbondment (9)
,
impressed current cathodic protection (iccp) (4)
,
mixed metal oxides (2)
,
horizontal directional drilling (hdd) (2)
,
aging pipelines (1)
,
recoating (1)
,
linear anode (1)

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Linear Anode for Pipeline Rehabilitation – Thirty Years Later

Association for Materials Protection and Performance