Areas of corrosion concern and consideration within the Oil and Gas production industry:
• Pipeline pressure vessel steels for resistance to Hydrogen Induced cracking
• Application of thermal spray coatings (aluminium, zinc and other alloy composites)
• Laboratory testing of metals for resistance to sulphide stress cracking
• Preparation, installation and analysis of corrosion in oilfield operations
• Corrosion control in submerged areas of steel offshore structures (petroleum production)
• Corrosion control of offshore structures with use of protective coatings
• Bacterial growth reporting for oil and gas systems
• Atmospheric and splash concern for offshore zones
• Corrosion control in injection systems – particularly in seawater
• Corrosion control of tubular goods within oil and gas environments
• Evaluation reports concerning pipeline and pressure vessel steels
Visit NACE.org for standards and reports, including specific reports for applications not listed above.
Corrosion by category
Types of corrosion can usually be separated into three separate groups.
1) The first group consists of corrosion types that can be seen with ordinary visual examination. These types of corrosion include pack rust, crevice, galvanic and pitting corrosion.
2) The second group includes corrosion types that may require further inspection or testing to define corrosion presence. The second group consists of corrosion such as erosion, exfoliation, fretting and cavitation.
3) The third group will require verification by microscopy, including environmental cracking, fatigue and SCC.
Corrosion resistance and product longevity
Of course, the most common control methods of controlling corrosion includes protective coatings, but even these are at risk of wearing over long periods of time.
For areas of which need longevity above most, such as offshore platforms, something with a stronger resistance is required.
Due to the nature of applications within the Oil and Gas production, one of the best corrosion control methods is within the initial material selection of the fittings, pipelines, valves and instrumentation that is going to be used.
Although no metal is completely resistant to all corrosive natures, NACE advocate that ‘materials selection is critical to preventing many types of failures’.
Looking for corrosion resistant tube, valves or fittings? Speak to our team today
enquiries@waverleybrownall.co.uk
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