Achieving Critical Assessments of pipelines through Accurate and Reliable Inspection information

TECMA S.R.L.
Eventi (convegni, congressi, fiere, corsi di formazione, presentazioni)

Presenting: Andrea Giorgio Bologna, TECMA Srl. Authors: Martin Bluck, Jane Dawson, Jeff Sutherland, Baker Hughes, a GE company. Paper presented at NACE Genova 2018 Conference - organised by NCE Milano Italia Section and NACE European Area - session Pipelines Oil & Gas Upstream Pipeline: RBI, regulation and inspection

Summary

Engineering assessments can be used to determine the immediate and future integrity needs by evaluating the criticality of anomalies identified during an ILI.

Increased ILI accuracy and reliability directly affects immediate and short-term schedules and budgets, and enables justifiable long-term remediation activities and re-inspection intervals.
A novel pinhole inspection capability has been realized. Similarly the identification and characterization of Spiral weld flaws vs corrosion has provided a more efficient and comprehensive integrity program.
Coincidental anomalies and loading conditions, are important integrity considerations that influence how the anomalies are assessed.
For re-inspections, using signal-matching techniques, active sites can be identified and the quantifiable rates estimated with high confidence. This provides the basis for optimizing the long-term remediation activities and re-inspection intervals.

Overall a holistic approach is promoted to achieve an effective and reliable engineering critical assessment.

Full text of paper in download