The development of on-line corrosion and bacteria monitoring techniques suitable for field use in pipelines has permitted direct field solutions of corrosion problems in pipelines without the need for back-up laboratory test programs. A pipeline with active bacterial corrosion was treated with biocide, which was found by on-line field monitoring to be highly effective in reducing corrosion rates in the pipeline system, and establishing the interval between treatments. Severe pitting was found on coupons exposed in sediment in the monitor, and light pitting was found at the oil water interface. In contrast, no pitting was found on coupons exposed entirely to water.

Subject
Galvanic probes, Water, Corrosion rate, Biocide treatment, Pipelines, Sediments, Bacteria, Corrosion inhibitors, Pitting, Marine vessels, Corrosion coupons, Linear polarization resistance, Oil
Keywords:
MIC, bacteria, biocides, corrosion monitoring, bacteria monitoring, Galvanic Probe, Linear Polarization Resistance (LPR), pipeline
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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