Oilfields generate less gas pressure as they mature. As a result, ingress of oxygen into well annuli, into the vapor space in tanks, and through pump packing becomes more common.1  Consequently, it is possible for severe localized corrosion to occur on carbon steel metals. Unfortunately, there are very few options to control very high corrosion rates that arise due to oxygen ingress. Common corrosion inhibitors generally fail to protect carbon steel when oxygen is present. In this paper, we report the performance of a novel phosphate ester-based inhibitor, which is capable of protecting carbon steel from carbonic acid corrosion in the presence of oxygen.

Subject
Corrosion rate, Autoclaves, Steel coupons, Iron, Mixtures, Carbonic acid, Corrosion inhibitors, Brines, Oxygen, Carbon steel, Oxygen corrosion, Corrosion coupons, Deposit corrosion
Keywords:
Oxygen Corrosion, Corrosion Inhibitors, Corrosion Testing, XRD measurement, Oxygen removal
Government work published by the Association for Materials Protection and Performance (AMPP) with permission of the author(s). Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2015
GOV
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