TES CanadaIntegrity Engineering
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Pipeline Defect Assessment
Knowledge TransferPipeline Engineering & Integrity
Pipeline Engineering & Integrity·Certification Pathway

Pipeline Defect Assessment

Pipeline defect assessment course covering threat and anomaly identification, metal loss, dents and gouges, girth weld crack-like defects, ECA, fatigue, fracture, repair, and examples from onshore and offshore pipeline integrity practice.

Duration3 days
DeliveryOnline / Virtual
LocationTES Canada facility · Client facility delivery available
LevelSpecialist
Certifying BodyTES Canada

Course Overview

This specialist course covers the engineering assessment of pipeline defects and anomalies, applying the principal defect assessment standards used in pipeline integrity management — DNV RP-F101, ASME B31G, and BS 7910. It addresses the full range of pipeline threat types, from corrosion metal loss and mechanical damage through crack-like defects, fatigue, and brittle fracture, and includes repair and mitigation options. Worked examples are used throughout to develop practical assessment competency. The course is designed for pipeline integrity engineers, assessment engineers, and inspection engineers who need to evaluate ILI anomalies and field-identified defects.

Who Should Attend

Pipeline integrity engineers responsible for ILI anomaly assessment and disposition
Assessment engineers and structural engineers evaluating pipeline defects
Inspection engineers and pipeline engineers who generate or review defect assessment reports
Pipeline operators and regulators requiring technical understanding of defect assessment methodology
Prerequisites

Engineering degree or equivalent technical qualification. Familiarity with pipeline integrity management, ILI inspection, or pressure equipment inspection is beneficial.

Learning Outcomes

  • Identify and classify pipeline threats and anomaly types — corrosion, mechanical damage, cracking, manufacturing
  • Apply ASME B31G and Modified B31G for metal loss assessment on liquid and gas pipelines
  • Apply DNV RP-F101 Part A and B for corrosion defect assessment
  • Evaluate dent, gouge, and dent-gouge combinations using applicable assessment methods
  • Apply BS 7910 FAD methodology for crack-like defect assessment in pipelines and girth welds
  • Assess fatigue crack growth and VIV fatigue contributions
  • Evaluate brittle fracture risk and Charpy arrest requirements
  • Select and evaluate pipeline repair options — sleeves, composite wraps, and mechanical clamps

Course Outline

Module 01

Pipeline Threats and Anomaly Classification

Pipeline threat taxonomy — ASME B31.8S and PHMSA classification
ILI tool types and sizing accuracy — MFL, UT, geometry, crack detection
Anomaly management workflow — from detection to disposition
Field verification and excavation criteria
Data quality and sizing uncertainty impact on assessment
Module 02

Metal Loss Assessment — Liquid and Gas Pipelines

ASME B31G — original and modified approaches
DNV RP-F101 Part A — single and interacting defects
DNV RP-F101 Part B — probabilistic assessment
ERF (Estimated Repair Factor) and safe operating pressure
Interaction rules for adjacent corrosion features
Remaining life and re-inspection interval from metal loss assessment
Module 03

Dents, Gouges, and Mechanical Damage

Dent classification — plain dents, dents with features, dents at welds
Dent depth and shape assessment criteria
Gouge assessment and pressure containment evaluation
Dent-gouge interaction — combined damage assessment
PRCI and NEB assessment methods
Cyclic pressure fatigue in dented pipe
Module 04

Girth Weld and Seam Weld Defects

Girth weld anomaly types — lack of fusion, lack of penetration, cracks
ECA for pipeline girth welds — DNV OS-F101 approach
Seam weld anomaly assessment — ERW selective seam corrosion
BS 7910 application to pipeline welds
Alternative acceptance criteria development
Module 05

Crack and Crack-Like Defect Assessment

SCC — high-pH, near-neutral pH, and MIC cracking mechanisms
Hydrogen-induced cracking and SOHIC in pipelines
Fatigue crack growth under pressure cycling
Failure Assessment Diagram for pipeline crack assessment
Crack ILI tools — EMAT, UT crack detection accuracy
Module 06

Fatigue, VIV, and Brittle Fracture

Pressure cycle fatigue assessment for dented pipe
Free-span fatigue — VIV contribution assessment
Brittle fracture — ductile-to-brittle transition and Charpy arrest criteria
Low temperature operating conditions and fracture risk
Running fracture and arrest design for gas transmission pipelines
Module 07

Repair, Mitigation, and Decision-Making

Accept, monitor, repair, or decommission — decision framework
Composite repair sleeves — scope, limitations, and qualification
Steel sleeves — full encirclement and reinforcing sleeves
Mechanical clamps — hot tap, repair clamp types
Weld repair and insert replacement
Regulatory reporting and documentation requirements
Module 08

Case Studies and Worked Examples

Metal loss assessment worked example — ILI MFL anomaly
Dent assessment case study — plain dent with cyclic pressure
Girth weld ECA worked example
Corrosion-to-failure and re-inspection interval case

Topics Covered

Pipeline Defect AssessmentMetal LossILIDNV RP-F101ASME B31GECADent AssessmentPipeline RepairSCCFracture Mechanics
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