Abstract
Onshore and offshore wells have been drilled utilizing coated casing. Closely spaced onshore wells located in a highly industrialized area were coated to significantly reduce cathodic protection current requirements to ensure adequate protection to the bottom of the casing and to eliminate or minimize stray current interference otherwise possible from the magnitude of current required to protect bare casing.
Offshore wells have been coated on non-electrified six well platforms to increase the depth of galvanic anode protection from about 2500 feet on bare casing to at least below known corrosive aquifers.
A detailed analysis of surface potential measurements, casing potential profiles, and current distribution is presented.
© 1987 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).
1987
Association for Materials Protection and Performance (AMPP)
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