Abstract
The first step is the failure of a major sealine transporting sour oil by a form of internal pitting apparently involving sulfate reducing bacteria(SRB).Then possible mechanisms were studied, where the theoretical roles of sulfate and thiosulfate were compared. Afterwards, the presence of thiosulfate was effectively identified in the produced water, and the growth of the local SRB was shown to be stronger on S2O3−− than on SO4−−. Also non SRB fermentative strains, able to produce tremendous amount of H2S and organic acids from thiosulfate and heavy nutrients (i.e. peptides) were collected. This might change the approach to microbially induced corrosion (MIC), in the oil & gas industry.
Subject
Pits,
Hydrogen sulfide,
Water,
Bacterial growth,
Sulfates,
Pipelines,
Rods,
Wellheads,
Thiosulfate,
Bacteria,
Pitting,
Risk reduction,
Hydrogen
© 1995 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).
1995
Association for Materials Protection and Performance (AMPP)
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