Paper: Rick McCurdy, BJ Chemical Services

A considerable amount of money is spent annually on corrosion inhibition programs utilized in the production of crude and natural gas. Consequently, considerable time and effort is placed on monitoring these programs and on searching for the most cost effective, system representative monitoring tool. For many years, dissolved iron was used for corrosion monitoring, though we now realize the many errors of this process, particularly in "sour", or hydrogen sulfide bearing, production environments. Dissolved manganese has been discussed as a more effective monitoring tool, though early analytical techniques proved this method to be cumbersome with varying degrees of accuracy. This paper revisits the use of dissolved manganese as a corrosion inhibitor monitoring tool with the application of modern techniques and instrumentation.