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FITNESS FOR SERVICE AND REMAINING LIFE ASSESSMENT

• Structural Deterioration Causes:

  • Corrosion, incidental damage, heavy usage, and operating beyond design parameters.
  • Uncertain degradation mechanisms increase the risk of unforeseen failures.

• Damage Assessment Process:

  • Identify damage mechanisms and their progression over time.
  • Conduct multidisciplinary evaluations to determine suitability for continued use (API 579-1 FFS standard).
  • Analysis includes stress analysis, finite element analysis (FEA), and other calculations.

• API 579 Fitness-for-Service (FFS) Process:

  • Evaluate degradation due to wear, corrosion, hydrogen damage, fatigue, and high-temperature hydrogen attack (HTHA).
  • Use cutting-edge finite element modeling and metallurgical laboratory services for precise assessments.

• Steps in FFS Assessment:

  1. Damage Process Evaluation: Analyze and document degradation mechanisms.
  2. Data Collection: Conduct interviews, surveys, and field inspections.
  3. Level Assessments: Perform Level 1, 2, or 3 FFS assessments based on damage severity.
  4. Remaining Life Analysis: Provide recommendations on repair, continued operation, or replacement.

• Importance of FFS Testing:

  • Ensures safe operations for extended periods in dynamic conditions.
  • Integrates metallurgical and mechanical testing to forecast component life.
  • Assists in planning maintenance and selecting appropriate maintenance or replacement strategies.

• Advanced Techniques:

  • Employs state-of-the-art modeling, testing, and software tools for accurate life prediction and optimal maintenance planning.

Fitness-for-Service testing is commonly applied to:

• High-energy Piping
• Pressure Vessels
• Storage Tanks
• Steam Turbine Blades, Nozzles, and Components
• Fired Heaters
• Pipelines
• Headers
• Reformers
• HTHA and other Hydrogen Damage Mechanisms
• Coke Drums
• Flare Drums
• Process Piping

In addition to API 579, we can provide you with many related inspection services including:

• API 510 Pressure Vessel Inspection
• API 570 Piping Inspection
• API 580 Risk Based Inspection
• API 653 Above Ground Storage Tank
• API 936 Refractory Inspection