As oil and gas becomes more difficult to find and wells are drilled deeper the well bottom hole temperature increases. The temperatures of deep wells can be as high as 230°C. There are a limited number of oil soluble corrosion inhibitors that work well in such systems. In this paper we report the development of a new water based corrosion inhibitor that works at high temperature and can be injected using a capillary string. A new water soluble corrosion inhibitor has many advantages such as greater partitioning in the water phase, higher flash point and higher reportable quantities (RQ) if a spill occurs than the oil soluble counterparts. In this paper the laboratory studies on new high temperature water soluble corrosion inhibitor are reported. The performance of this corrosion inhibitor in a field trial is also reported. Wherever possible the water soluble corrosion inhibitor will be compared with a standard high temperature oil soluble corrosion inhibitor.

Subject
Water, Inhibitor performance, Viscosity, Corrosion rate, Corrosion testing, Solubility, Film persistency, Dispersion, General corrosion rate, Corrosion inhibitors, Brines, Oil, High temperature
Keywords:
High temperature corrosion inhibitor, high temperature and pressure, HT/HP
© 2009 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).
2009
Association for Materials Protection and Performance (AMPP)
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