Abstract
Cathodic Protection by galvanic anodes installed at construction stage on an offshore jacket structure or a complex of several jackets needs to be upgraded when lifetime extension is required. Marine operations and underwater works being very expensive, the choice of the rehabilitation method is often driven by the associated costs for such revamping works. This document presents the overall approach undertaken on an offshore field in the Gulf of Guinea to carry out the revamping of the cathodic protection of several jackets and the technical choice of the impressed current when compared to galvanic anodes, considering technical and economic aspects, and pointing out the various advantages and drawbacks.
© 2023 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, 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. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2023
Association for Materials Protection and Performance (AMPP)
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