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Chemical Process Technology

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Wednesday, October 15, 2008

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Carbon Dioxide (CO2) with the present of free water in oil and gas would lead to generation of Carbonic acid. This has been briefly discussed in "CO2 Corrosion in Oil & Gas - Part 1". In this post and "CO2 Corrosion in Oil & Gas - Part 2", there are several articles related to CO2 corrosion.

Since the initial studies by DeWaard and Milliams'(1975), there are many other follow-up studies on the CO2 corrosion phenomena. Many CO2 corrosion models have been proposed and used in predicting CO2 corrosion rate. They are :
  • Dewaard- Milliam model
  • LIPUCOR model by TOTAL
  • HYDROCORR model by SHELL
  • CASSANDRA model by BP
  • NORSOK M-506 model by NTSI
  • KSC model
  • IFE model
  • etc
All these model are complicated and applicable in certain flow conditions.

DeWaard-Milliams nomograph
DeWaard and Milliams in their earlier studies has prepared a DeWaard-Milliams nomograph which is pretty simple and useful to have quick estimate for CO2 corrosion rate.

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posted by Webworm, 1:08 PM


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