Physical and Chemical Effects of Crude Oil on CO2/H2S Metal Loss Corrosion: An Updated Review.

摘要

The presence of crude oil in the oil and gas production may significantly reduce corrosion rates of carbon steel in CO2/H2S containing environments. The crude oil inhibition mechanisms can be combined into two main effects: 1) A chemical effect, related to inhibiting properties of compounds present in the crude oil; and 2) A physical effect, related to the capacity of the oil or some of its components to prevent the water from contacting the steel surface. This paper focuses on the work that has been performed during the last decade mainly addressing the physical effect of crude oil on corrosion and the models used to describe it. Knowledge gaps and disagreements are identified and further work is recommended in order to establish the key parameters controlling the mechanism, their critical values, and interactions.