Abstract
Recently, it has become apparent that THPS, often used as a biocide in oilfield operations, also dissolves iron sulfide scales. The chemistry of this process is reviewed and a study of iron sulfide dissolution, over a range of conditions, is reported. In particular, combinations of THPS with ammonium salts or organic phosphonates are particularly effective and are useful for oilfield situations where iron sulfide scales or suspended iron sulfide particulates are a problem.
Subject
Water,
Salts,
Iron sulfides,
Phosphonates,
Iron,
Dissolution,
Troilite,
Ammonium,
Dissolvers,
Ammonium chloride,
Scale,
THPS,
Hydrochloric acid
© 2002 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).
2002
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.
