Corrosion Control in Oil and Gas Operation

It is widely recognised within the oil and gas industry that effective management of corrosion will contribute towards the maintenance of asset integrity and achieve the following benefits:

• Compliance with statutory requirements (e.g. Queensland Petroleum and Gas Act)
• Compliance with organisation’s safety, health and environmental directives
• Reduction in safety and environmental hazards from leak and structural failure
• Increased plant availability by minimising unplanned maintenance
• Reduce business loss (cost saving)
• Good publicity and company’s reputation
• Environmental benefits and liability
• Corporate social responsibility
• Minimising fire and exploration risk

Identify Materials deterioration mechanisms

Corrosion management covers the management of threats to technical integrity arising from mechanisms of material deterioration and failure, including but not limited to:

• General corrosion,
• localised and pitting corrosion
• galvanic corrosion
• Environmental cracking including stress corrosion cracking, hydrogen included cracking, sulphide stress cracking,
• corrosion fatigues
• Microbiologically influenced corrosion
• Erosion, flow assisted corrosion, cavitation,
• External atmospheric corrosion,
• crevice corrosion,
• flange face corrosion,
• external coating breakdown, and
• corrosion under insulation
  

  Establish Inspection strategies

  Inspection strategies opportunistic, non-intrusive and operation surveillance. Our on line and offline monitoring strategies will be on-line probes (various), gas and water site / laboratory sampling.

  Corrosion predictive Modelling

  Corrosion predictive tools combined with effective inspection techniques offer engineers the ability to synchronize the timing of repairs with supportability and operational considerations. An effective combination of the first three elements would support a robust find-and-manage versus find-and-fix corrosion management program. Finally, when corrosion does occur, and it will, inspection methods must be effective enough to identify the damage early enough that relatively minor repairs can be employed vice extensive, costly and time-consuming component replacement.