The in-situ permanent expansion of casing and tubing in oil and gas wells is now possible. This landmark advancement in well completion technology and repair can decrease the cost of initial well completion, make completions in difficult formations possible, and can salvage damaged completions by in-situ well repairs. The expansion of selected grades of seam welded, API casing and tubing steels has been studied with respect to its effect on the mechanical properties and resistance to environmentally assisted cracking in sulfide containing environments. These studies demonstrated the viability of the process prior to the first successful, commercial application on November 25, 1999.

Subject
Test methods, Seams, Tubular goods, Materials failure, Materials, Piping, Mechanical properties, Sodium chloride solution, Heat, Steel, Sulfide stress cracking, Toughness, Yield strength
© 2000 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).
2000
Association for Materials Protection and Performance (AMPP)
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