A study was conducted in a broad range of multiphase (oil/gas/water) environments to assess the ability to assess corrosion/pitting in petroleum production environments using an automated (field) electrochemical monitoring system. Corrosion measurements were made in both liquid and vapor phase environments under various conditions of velocity, oil/water mixtures, oil type, H2S/CO2, and additions of various impurities found in oil systems. The results demonstrate the widely varying corrosivity (both general and localized attack; in both liquid & vapor phases) of these systems, while also showing the extensive abilities of real-time electrochemical monitoring to assess varying conditions commonly found in gathering lines, pipelines and facilities.

Subject
Naphthenic acid, Stirring, Corrosion rate, Agitation, Vapors, Liquids, Corrosion attacks, Pitting, Linear polarization resistance, Electrodes, Pitting factor, Types of corrosion, Oil
Keywords:
electrochemical, corrosion, monitoring, pitting, multiphase, H2S, CO2, vapor phase, petroleum
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2004
Association for Materials Protection and Performance (AMPP)
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