Burst Prediction For Axial Cracks With Non-Ideal Depth Profiles

Paper No. IPC2024-133954

This paper enhances crack-like anomaly assessment in pipelines by addressing limitations of semi-elliptical crack models, which often underestimate burst pressure. Building on the PRCI MAT-8 model, it introduces a procedure to convert non-ideal crack depth profiles into equivalent semi-elliptical cracks with longer estimates. An algorithm aligns over 17,500 ILI profiles to quantify measurement uncertainties, addressing gaps in vendor specifications. This approach maintains a conservative bias while ensuring accuracy similar to typical ILI length sizing methods.