Using ethylamine as sulfur solvent in sour gas wells spontaneous calcium carbonate precipitation takes place at the lowest part of the tubing string. In order to evaluate mechanism of carbonate growth inhibition and morphology control, experimental precipitation tests with commercial scale inhibitors were carried out. The morphology of the precipitated particles depends on the type of the scale inhibitor molecule and the surface charge. On the basis of alterations of the morphology of water-formed deposits the production of removable aggregates could be expected. The corrosivity of the system is influenced by the scale inhibitor in different manner.

Subject
Sulfur, Scale morphologies, Water, Precipitation (solids), Corrosion rate, Precipitates, Calcium carbonate, Scale inhibitors, Sour gas, Solvents, Chemical inhibition, Crystal growth, Corrosion inhibitors
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
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