Both galvanic and impressed current cathodic protection systems have been used to protect the interior of oilfield production vessels and tanks for many years. The initial choice for the type of system selected has usually been determined by the vessel current requirements and the perceived economics for the two types of systems. The use of galvanic versus impressed current systems for two fields in Louisiana has been re-evaluated using the most recent information on anode life, anode replacement costs and equipment repair/replacement costs.

Subject
Costs, Water, Galvanic anodes, Impressed current cathodic protection, Salts, Reference electrodes, Water tanks, Impressed current anodes, Impressed current, Bridges, Galvanic current, Electrodes, Anodes
Keywords:
carbon dioxide, cathodic protection, economic evaluation, galvanic anodes, impressed current anodes, reference electrode
© 1994 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).
1994
Association for Materials Protection and Performance (AMPP)
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