The effect of thermophilic anaerobes upon corrosion of AISI 1020 carbon steel in both natural and synthetic oilfield produced water was investigated. Electrochemical techniques such as: open circuit potential, linear polarization resistance, and electrochemical impedance spectroscopy associated with viable bacterial cell counts were applied to evaluate microbiologically influenced corrosion. The effect of glutaraldehyde upon MIC was also studied. Presence of thermophilic anaerobes in the produced water enhanced the corrosion of mild steel, and addition of glutaraldehyde in the water increased the corrosion rate during a short-term exposure (time < 5 hours).

Subject
Steel surfaces, Water, Electrochemical cells, Corrosion rate, Biofilms, Bacteria, Glutaraldehyde, Oilfields, Produced water, Steel, Immersion, Corrosion coupons, Microbiologically influenced corrosion
Keywords:
microbiologically influenced corrosion (MIC), oilfield produced water, thermophilic anaerobes, glutaraldehyde treatment
© 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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