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Emulsification reducing the corrosion risk of mild steel in oil–brine mixtures

Authors
Journal
Corrosion Science
0010-938X
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.corsci.2014.06.009
Keywords
  • A. Acid Solution
  • A. Mild Steel
  • B. Eis
  • B. Weight Loss
  • C. Acid Inhibition

Abstract

Abstract The corrosiveness and stability of the oil–brine mixtures with different water cuts were systematically studied. It was found that corrosion can be effectively inhibited in a large extent of water cuts, if only the water phase can be completely entrained in the oil phase, forming water-in-oil emulsions for a period of time. By enhancing emulsification in oil–brine mixtures, the water cut forming water-in-oil emulsions could be as high as 70%. Coalescence and falling of water droplets in such emulsions may induce corrosion at the bottom of pipelines. An idea on the control of the bottom of line corrosion was proposed.

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