Abstract
In 1970 the INA crude oil pipeline was constructed from Opatovac to Bosanski Brod in law-land between the rivers Danube and Sava in Yugoslavia. The pipeline is spiral welded 16" and 207 km long. It is tape coated over the ditch. For outerwrap bituminous craft paper was used. In 1983 the pipeline was bellholed and one sample of tape coating was taken. This sample was left forgotten in the laboratory. After several years on this very sample there was observed unexpected "memory" of the tape.
The oil line is cathodically protected. From the cathodic protection maintenance data, an average protective current density is evaluated as function of the time of burial underground.
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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