CORROSION CONTROL—1: Unmitigated MIC prompts integrity management changes

06/01/2009
Identifying unmitigated microbial-influenced corrosion (MIC) rather than mitigated or even unmitigated CO2 corrosion as the highest risk to infield oil transport pipeline integrity has led to a change of emphasis in corrosion control, with the emphasis placed on water cut control at slow flow rates and optimization of the pigging program.Microbial corrosion modeling can be used in addition to CO2 corrosion modeling to show historical, present, and predicted future corrosion rates, leading to an increased level of confidence in future operations where pipelines damaged by MIC continue to be used.This first of a two-part article concentrates on MIC modeling and subsequent intelligent in-lin...
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