Atmospheric corrosion

{
  "id": "MLC-T-OAG-000205",
  "term": "Atmospheric corrosion",
  "field": "Oil and gas",
  "definition": "The degradation of exposed metal such as wellheads, Christmas trees and surface piping through reaction with moisture, oxygen and airborne pollutants like chlorides and sulfur dioxide. It proceeds through thin films of electrolyte on the metal surface rather than immersion in a liquid, so humidity, temperature and air salinity set the rate, with marine and industrial sites corroding fastest. Paint and protective coating systems are the standard control, since cathodic protection does not work without a continuous electrolyte.",
  "subject": "Well Completions",
  "url": "https://mlchart.com/terminology/oil-and-gas/atmospheric-corrosion/"
}