GADline

Background and issues

The GADline software tool is used to reach a decision on the acceptability of the defects detected and sized on a gas transmission pipeline, on the basis of the mechanical strength criteria in the GAD (Defect Analysis Guide); it is thus a decision-support software program for the maintenance of infrastructures. Specifically, the GADline software is used to analyze:

• The acceptability of anomalies (corrosion, scratches, geometric deformations, combined defects, etc.) found during a piston-based inspection or after an on-site characterization;
• Time-dependent changes in the acceptability of the corrosion indications vs. the kinetics of the phenomenon.

Our added value

GADline is a tool that integrates all the criteria of the "Defect Analysis Guide" and allows:

• Direct import of the data files generated by the instrumented pistons to quickly process a large number of indications;
• The building of a maintenance program (excavation programs);
• Studies on defect changes between two inspections.