DNV provides effective assistance in most of the aspects relevant for the cost-effective design and implementation of corrosion protection systems and corrosion testing.

Purpose

The purpose is to provide effective assistance to ensure cost-effective design and implementation of corrosion protection systems and corrosion testing, in addition to perform inspection of painting systems.

Benefits

DNV’s competence in CP-design will ensure that the selected CP-system has been designed correctly to sufficiently protect the respective system for the design period.

DNV’s corrosion-testing facilities and competence will give the client the possibility to check that the quality of their respective materials meet the requirements specified in recognised international standards.

Features

DNV has the in-depth knowledge to perform services related to corrosion protection and coating systems.

Our expertise is especially directed towards:

• Internal corrosion
  • Sweet/sour corrosion of oil and gas production systems
  • Corrosion of multiphase pipeline systems
  • Corrosion of water injection systems.
    
• External corrosion
  • Sea water corrosion
  • Corrosion of pipes in soil
  • Corrosion under insulation
  • Atmospheric corrosion.
    
• Corrosion protection
  • Cathodic protection (impressed current, sacrificial anodes)
  • Inhibition
  • Painting/coating
  • Corrosion resistant materials (GRP, stainless steels, etc.).
    

• Corrosion testing.

DNV performs corrosion testing, both indoors standard and purpose-made test set-ups, also comprising exposure in seawater, as well as outdoors field testing.

Standardized, small-scale corrosion tests:

• Pitting corrosion tests
• Intergranular corrosion tests
• Exposure tests in various environments
• Saline droplet corrosion tests.

Additionally, the laboratory in Bergen has the capabilities of:

• Exposure testing:

  • Seawater exposure in laboratory
  • Seawater at deep and shallow sites
  • Atmospheric/splash zone
  • Standardised corrosion tests
  • Autoclave testing
  • H2S sour service tests
  • Hydrogen induced cracking tests.
    
• Anode testing:
  • Characterisation of short and long term performance
  • Quality control.