Tubulars used in underbalanced sour drilling can be subjected to more severe environmental conditions than encountered in traditional overbalanced drilling. This paper describes testing conducted with the double cantilever beam technique in simulated environments, discusses performance of representative drill string tubulars and possible mitigation in the context of development of industry guidelines.

Subject
Test methods, Materials, Double cantilever beams, Sour environments, Sour gas, Drilling fluid, Stress cracking, Cracking resistance, Test environments, Corrosion inhibitors, Steel, Sulfide stress cracking, Coupons
Keywords:
sulfide stress cracking, underbalanced drilling, H2S, tubulars, double cantilever beam, steel, TM0177
© 1998 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).
1998
Association for Materials Protection and Performance (AMPP)
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