Clarion Technical Conferences
ILI Data Analysis for Pipeline Integrity Management
ILI Data Analysis for Pipeline Integrity Management

 

Course Syllabus

Course Schedule

Monday
7.30am Registration, coffee
8am-4.30pm Course

Tuesday-Thursday
7.30am Coffee
8am-4.30pm Course

Friday
7.30am Coffee
8am-12.00pm Course

Course Program
DAY 1

Introduction

Problems discovered during integrity management program (IMP) inspections and
pipeline accident investigations

Critical knowledge gaps in current ILI technology

  • Holistic analysis of ILI data – key element in a successful pipeline integrity management program
  • ILI data analysis terminology
  • Defects: main threats and localities of pipeline loss of integrity

Types and classification of pipeline defects

  • Pipeline defects and remaining life
  • Structural reliability and performance risk of pipelines with defects
  • Basics of ILI technology

 

DAY 2

ILI – most important single method of pipeline diagnostics

  • Contemporary methods of ILI
  • Four stages of ILI technology
  • Three possible outcomes of ILI
  • International ILI qualification standards: an overview

Comprehensive review and analysis of existing international standards:

  • API 1163, NACE Standard RP 0102-2002, NACE 35100, ASNT ILI- PQ 2005
  • Selection of an ILI system (API 1163, RP 0102-2002, RP 35100)
  • Operational characteristics & constraints (API 1163, NACE)
  • ILI system performance specification (API 1163)

DAY 3

ILI systems performance verification (API 1163)

Basics of holistic ILI data acquisition, mining, analysis, and management

  • ILI as a measurement system
  • Main sources of variability in ILI measurements
  • Typical ILI results
  • Seven basic ILI performance quality metrics
  • Probability of true detection (PTD)
  • Probability of true location/positioning
  • Probability of true identification/discrimination (PTI)
  • Defect sizing accuracy metrics
  • ILI system measurement and verification models
  • Flow chart of holistic analysis of ILI results
  • Solving the problem of missing and false ILI data
  • Calibration of ILI tools and results of runs
  • Field verification of ILI data
  • Number of confirmatory digs needed for corroboration of the ILI data
  • Contractual criteria for defect reports
  • ILI quality management
  • Cost/benefit analysis of ILI technology

DAY 4

Workshop # 1: Working examples of total analysis of ILI data

Implementation of ILI analysis output in risk-based pipeline IMPs

  • Manual for the IMP manager: from holistic ILI data to IMP activities
  • Assessment of rupture pressure (B31mod, Shell, Battelle, DNV, etc.)
  • Defect-growth models
  • Corrosion
  • Stress corrosion
  • Low-cycle fatigue cracks
  • Interaction rules
  • Fitness-for-purpose assessment
  • Remaining lifetime
  • Planning the next ILI

Case studies: application of PRIMA software

Workshop # 2: Risk-based prioritization of pipeline segments with defects for maintenance/repair: making clever decisions on actionable anomalies

Role of the human factor in ILI technology

DAY 5

Influence of ILI-induced human errors on pipeline safety and reliability

  • Personnel education, qualification, certification, training and experience requirements
    (as per ASNT ILI PQ requirements)

Existing approaches to quantitative assessment of human factor/errors

  • Repeatability and reproducibility of ILI and field-verification measurements
  • Interaction of pipeline operators, ILI vendors, and regulatory bodies

Understanding ILI tool data submitted by vendors

  • Information exchange flow between operator and vendor before, during, and after ILI
  • Regulators and ILI quality
  • ILI tender issues

Conclusion: next steps and new horizons

Terminology

References


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Clarion Technical Conferences

Global Pipeline Monthly

Supported by: ASME
Journal of Pipeline Engineering
  Pipeline & Gas Journal  

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