We conduct Fitness-for-Service (FFS) assessments with the objective of evaluating the integrity of piping systems, estimating their remaining useful life, and developing technically sound integrity management strategies. All evaluations are carried out in accordance with internationally recognized standards and industry best practices.

If only one set of inspection data is available, the FFS assessment includes a probabilistic Corrosion Growth Rate (CGR) analysis at a defined confidence level (80% or 90%, depending on client preference). Additionally, clients may opt to include a Run Comparison Assessment, using two or more in-line inspection data sets, to calculate CGRs with greater precision and support re-assessment interval planning.

ASSESSMENT OBJECTIVES

• Evaluate the current condition of the pipeline based on in-line inspection (ILI) reports.

• Identify and categorize defects that impact pipeline integrity.

• Estimate internal and external corrosion growth rates and the remaining life of critical defects.

• Project the future integrity pipeline.

• Recommend corrective, mitigation, and monitoring actions.

• Provide the technical foundation for a long-term integrity management plan aligned with regulatory and industry practices.

• Recommend an ILI re-inspection interval.

STANDARD REPORT INFORMATION

1. Diagnostic Review of Reported Defects: Detailed analysis of reported anomalies, including internal and external metal loss, manufacturing defects, dents, and others. 

2. Immediate Integrity: Evaluation of the impact of reported features on immediate pipeline integrity at the time of inspection. Features requiring immediate repair are clearly highlighted.

3. Corrosion Growth Rates: Calculation of internal and external CGRs, including a probabilistic growth rate analysis at 80% or 90% confidence level, depending on client preference.

4. Remaining Life Assessment: Estimation of the time required for each defect to reach critical depth, providing a projection of remaining lifespan.

5. Future Integrity Plan: Forecasting of future conditions using ASME B31G and Kastner methodologies:

• Projected Safe Pressure (Psafe)

•  Projected Failure Pressure (Pfail) or Predicted Burst Pressure

• Estimated Repair Factor (ERF)

Each defect will be assessed over future intervals (up to 10 years) using criteria such as:

• Psafe < MAOP

• Depth ≥ 80% of wall thickness

• Pfail ≤ 1.1 × MAOP

6. Integrity Management Plan:

•  Provide details for immediate repairs, including location and severity of urgent defects.

• Develop a schedule for medium- and long-term repairs.

• Recommend mitigation actions to slow or prevent defect growth.

7. ILI Re-inspection interval: Determination of a suitable re-inspection interval to monitor pipeline condition and validate the effectiveness of repairs and mitigation efforts.