Other Factors Affecting Corrosion Inhibitor Requirements

3 Other Factors Affecting Corrosion Inhibitor Requirements 

Other factors affecting corrosion include bacteria, scaling, mechanical or chemical treatment of lines prior to commissioning, such as treatment of the pipe during storage, and completion methods and 

B acteria, particularly sulfate reducers, can increase corrosion rates and may need to be controlled with organic biocides. Organisms may be introduced during hydrotesting of lines, and by contamination of producing systems from sumps and seawater flushing of vessels. 

Scaling may need to be controlled to prevent pitting corrosion. The inhibitor may be a combination material or a scale inhibitor may be used separately. 

Pipelines may require treatment to remove mill scale and deposits prior to a successful inhibitor treatment regime, and will be hydrotested. Prevention of corrosion and bacterial growth during testing is required. 

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