A mathematical model of uniform CO2 corrosion rates in downhole gas well environments has been developed for the case of annular flow. The model draws on the best available work in fundamental thermodynamics, chemistry, mass transfer, and fluid flow to calculate the corrosion rate profiles in the gas well and to predict the formation of corrosion product films as a function of well depth. Model predictions of corrosion rates compare very favorably with caliper survey data obtained in wells with widely varying corrosion environments.

Subject
Water, Piping, Friction, Diffusion layers, Corrosion rate, Predicted corrosion rate, Iron sulfides, Liquid films, Liquids, Corrosion products, Mass transfer, Interfaces, Corrosion modeling
Keywords:
Downhole corrosion, Flow-induced corrosion, CO2 corrosion
© 1996 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).
1996
Association for Materials Protection and Performance (AMPP)
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