The use of oxidizers in the oil and gas industry has been increasing in recent years. Peracetic acid, in particular, has been gaining acceptance as a very cost effective and superior biocide for water treatment applications. Though primarily used as biocides; oxidizers, in general, are multi-functional chemistries. Some of the other functionalities include iron sulfide and H2S control as well as water clarification. Although very effective in controlling MIC, if not properly dosed, the acid and/or oxygen from oxidizers can cause corrosion. In this paper, we will present a study that is aimed at understanding the relative rates of reactions between oxidizers and bacteria, iron sulfide, H2S, other oxidizable compounds present in produced waters and the overall impact on metal corrosion. The results will aide in defining a corrosion control program for water treatment systems where oxidizers are used for preventing microbial influenced corrosion.

Subject
Acids, Sulfur, Water, Materials, Corrosion rate, Iron sulfides, Iron, Oxidizers, Bacteria, Carbon steel, Biocides, Risk reduction, Oxidation
Keywords:
water treatment, MIC, peracetic acid, iron sulfide, H2S, carbon steel, corrosion, multifunctional chemistry
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2017
Association for Materials Protection and Performance (AMPP)
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