The transfer of sound corrosion knowledge from human experts to dedicated software tools has been individuated as a strategic activity, and, accordingly, a number of applications have been developed in recent years. This approach to corrosion, which represents a new phase, coming after those of corrosion science and corrosion engineering, has been labelled “corrosion intelligence”(1), and it matches several needs of an oil company, as: standardisation of design procedures; “capitalization” of available knowledge in programs easy to update; decentralisation of the expertise. The paper illustrates an expert system dealing with all aspects related to oil and gas pipeline corrosion, including: internal and external corrosion; material selection and corrosion control requirements; internal corrosion monitoring; coatings; cathodic protection; corrosion in transient phases; intelligent pig inspection; costs comparison. In particular, the modules for internal and external corrosion assessment are described. The general architecture of the application, based on independent expert modules, is discussed in detail and examples of results, with relevant interfaces, are shown. The expert system is also evaluated with respect to another software application for the assessment of corrosion risks.

Subject
Water, Materials, Corrosivity, Materials selection, Pipelines, Tools, Oil and gas, Fluids, Internal corrosion, External corrosion, Corrosion protection, Bituminous coatings, Oil
Keywords:
corrosion, expert systems, oil and gas, pipelines
© 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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