www.cfertech.com

Pipeline Integrity Management

Alberta-Korea Pipeline Safety SeminarDaegu, South Korea

June 2, 2016

Brian WaggDirector, Business Development

C-FER TechnologiesEdmonton, Alberta, Canada

www.cfertech.com

Overview

• Introduction to C-FER• Integrity Management Programs

– Program Requirements– Initial Assessments– Making the most of ILI data

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Who we are

• Independent engineering consulting and testing

• Not-for-profit, Government owned

• 100 employees - $18 million annual revenue

• Working with industry clients

www.cfertech.com 4

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What we do

• Improve Safety and Efficiency– Manage Risk

– Optimize Operations

– Investigate Failures

•De-risk technologies– Qualify Equipment

– Track Performance

Testing

Risk

Modeling

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Integrity Management Plan

Construction • Avoid

Integrity Management • Prevent

Leak Detection • Find

Spill Response • Clean up

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IMP Requirements

• System Data• Records Management• Change Management• Training and Competency• Hazard Identification• Consequence Identification• Inspection and Monitoring• Mitigation Options• Activity Plans and Schedules• Continual Improvement• Incident Investigation

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IMP Assessment

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IMP Assessment

PipelineOperator

3rd PartyInspector

IMP Assessment

Regulator

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IMP Requirements

• System Data• Records Management• Change Management• Training and Competency• Hazard Identification• Consequence Identification• Inspection and Monitoring• Mitigation Options• Activity Plans and Schedules• Continual Improvement• Incident Investigation

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Hazards

• Equipment impact• External metal loss corrosion• Internal metal loss corrosion• Stress corrosion cracking• Manufacturing defects• Geotechnical hazards• Seismic hazards• Ice scour (offshore)• Natural hazards (offshore)

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Baseline Assessments

Objective– Identify pipeline segments where risk or

uncertainty is highest

Approach– Requires minimal data to describe pipeline

attributes– Use database of pipeline failures to estimate

probability of failure for each hazard

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Data Requirements

Pipeline attributes for external corrosion analysis:

– Age– Wall thickness– Operating temperature– Soil corrosivity (low / high / very high)– Cathodic protection (yes / no)– Coating type– Coating condition (intact / damaged)

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Segment Analysis

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Detailed Assessments

Objective– Develop work plans to reduce risk

Approach– Collect data to better describe pipeline condition

(e.g. Inline inspection, digs, etc.)– Use engineering models to estimate risk– Optimize plans to reduce risk

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Defect Assessment Process

Data on pipeproperties and dimensions

Maximumoperating pressure

InspectionData

Measurementuncertainties

Corrosion modeland test results

Data fromrepetitiveinspections

Failure probabilityas a

function of time

Model results

Test results

xxxx

xx

x

xx

x

x

modeluncertainties

Flaw depth (mm)

Prob. density

corrosioncharacteristics

Prob. density

Growth Rate (mm/yr)

corrosiongrowth rates

Yield stress (MPa)

Frequency

pipeproperties

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Probability of Detection

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Initial Assessment- Basic line attributes- Failure database used to estimate

probability of failure due to each hazard

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Detailed Assessment- Inline Inspection shows pipe wall loss due

to corrosion- Engineering models used to predict

probability of failure due to corrosion- Other hazards use failure database

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Consider Consequences- Risk = Probability of Failure x Consequences- Risk target consistent along pipeline

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Repair Damage

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Install Protection

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Maintenance Planning

0 2 4 6 8 10

Relative Age (yrs)

Base case

In-line inspection

Reduced pressure

Increased wall

Failu

re R

ate

(per

km

yr)

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Dig Optimization

Year 1

Year 4 Year 5

Year 8

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PIRAMID

• Quantify risk profile along pipeline• Evaluate factors influencing risk• Optimize maintenance and

inspection programs• Report to regulators

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Integrity Management Program

• Well established best practices are documented in standards

• Baseline risk assessments require only basic information and use a database of failures from other pipelines

• More detailed assessments can be made when more data becomes available

• Maintenance programs can be optimized to minimize risk and cost

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Thank you