The Mechanism of Sulfur Dewpoint Corrosion

11398: Investigation of Elemental Sulfur Corrosion Mechanisms

Sour gas wells frequently co-produce elemental sulfur which can cause catastrophic corrosion of mild steel. As producing wells become increasingly sour, the incidence of sulfur corrosion will likely increase. Despite the severity of this problem, limited mechanistic information about this process exists in the literature. The objective of this study is investigation of the corrosion mechanism i...

Understanding the Corrosion Mechanism in Chrome Coatings

Evidence of the Potential Shift Mechanism in Crevice Corrosion (RESEARCH NOTES)

Previous research has indicated a qualitative resemblance between the current distribution along actively corroding crevice walls and currents measured in corresponding anodic polarization plots. Using detailed measurements of the potential gradient along the crevice, a semi-quantitative current distribution was calculated for the crevice wall using a double numerical differentiation method. Th...

Practical Corrosion Control Measures for Elemental Sulfur Containing Environments

This paper provides an overview of materials’ performance in well environments containing H2S and elemental sulphur (S). Based on this information the factors affecting the service life of materials used for well completion and surface facilities in highly sour environments are discussed and limitations on materials selection and chemical inhibition procedures are suggested.

Functionalization of the Single-walled Carbon Nanotubes by Sulfur Dioxide and Electric Field Effect, a Theoretical Study on the Mechanism

In this study, kinetics and mechanism of the sulfur dioxide adsorption on the single-walled carbon nanotubes (CNT) are investigated. Three single-walled carbon nanotubes, including the armchair (6,6), chiral (6,5) and zigzag (6,0) CNTs were chosen as the models and the different orientations of SO2 molecule relative to the CNT axis were considered. The B3LYP functional within the 6-3...