Application and Improvement of Pipeline Integrity Management
Application and Improvement of Pipeline Integrity Management
Application and Improvement of Pipeline Integrity Management
INTERNATIONAL STANDARDS
PAGE 2
[1]
Part
Review on buried pipeline
explosion in Kaohsiung
Photo:http://i.imgur.com/KHFCVFP.jpg
Date1st August,2014
LocationKaohsiung, Taiwan
Casualties 32 deaths321 injuries
LossBig loss and main roads were seriously damaged.
PAGE 3
[1]
Part
Review on buried pipeline
explosion in Kaohsiung
Root Cause
Photo:http://news.ltn.com.tw/news/
focus/paper/802196
Pic/FCFC PY-Chen
PAGE 4
[1]
Part
Review on buried pipeline
explosion in Kaohsiung
Swiss Cheese Mode
Major accidents happen when all the layers holes
line up.
PAGE 5
[2]
Part
Improved Pipeline Integrity
Management(PIM)
Key Points
2.1 Work Flow Chart
2.2 Gathering Data
2.3 Segmentation
2.4 Identify Threats
2.5 Risk Assessment
2.6 Management Plan
2.7 Mitigation
2.8 Personnel Certification
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2.1 Work Flow Chart
5.Management Plan
3.Identify all threats of 4.Risk
1.Gathering (including inspection
pipeline by RBI and Assessment
data /maintenance 6.Mitigation
2.Segmentation PHA. II (including near (estimation
(including plan, SOP,WP,PSSR,
miss) & MOC may &
PSI) MOC,Training,
trigger to check evaluation)
Contractors & ER)
7.Reassessment
PAGE 7
Propylene
Or C3H6 1.5 0.5139g/cm3 -107.8 -47.6 455 C 2-11
Propene
PAGE 8
2.3 Segmentation
1. Different probability of failure (age of pipeline, coating condition, soil
conditions, etc.)
2. Different consequence of failure (population density, drinking water
sources, etc.)
3. Special threats (near MRT, electrical tower, injection point, etc.)
Pic/FCFC PY-Chen
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PAGE 10
2.5 Risk Assessment(1/3)
Pipeline Risk Assessment Manual by W. Kent Muhlbauer
Third party damaged Corrosion
Minimum depth of cover 20pts Atmospheric corrosion 10pts
Activity level 20pts
Aboveground facilities 10pts Internal corrosion 20pts
Line Location 15pts
Public education 15pts Subsurface corrosion 70pts
Right-of-way condition 15pts
Patrol 5pts Total 100pts
Total 100pts
Design Incorrect operation
Safety factor 35pts Design 30pts
Fatigue 15pts Construction 20pts
Surge potential 10pts 35pts
Operation
Integrity verifications 25pts
Maintenance 15pts
Land movements 15pts
Total 100pts Total 100pts
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High 0.1-0.01
Moderate 0.01-0.001
Low 0.001-0.0001
Unacceptable risk
Very Low <0.0001
32
COF A B C D E
Economic less than NT$0.3M to NT$3M to NT$30M to above
impacts NT$0.3M NT$3M NT$30M NT$300M NT$300M
Loss of less Loss of 4 hours Loss of 1 to 4 Loss of 1 to 6 More than 6
Business
than 4 hours of to 1 week weeks of months of months of
Interruption
production production production production production
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2.5 Risk Assessment(3/3)
Specific threats analyzed by SMEs or other methods
Design, incorrect
operation, third party
damaged, analyzed by
Kent method (index
score assessment)
Corrosion threat
analyzed by RBI
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CHECK Management
Of Change
10
Pic.FCFC/PY-Chen 5,6,7
PAGE 15
Effective
Photo:http://www.dailymail.co.uk/news/article-2956559/
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Probability Category
Unacceptable Category Range
risk 1 Df-total2
2 2<Df-total20
Reduce to 3 20<Df-total100
4 100<Df-total1000
acceptance level
5 Df-total>1000
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2.7 Mitigation(2/2)-Case Study
COF A B C D E
Economic less than NT$0.3M to NT$3M to NT$30M to above
impacts NT$0.3M NT$3M NT$30M NT$300M NT$300M
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PAGE 20
[3] Conclusion
Part
Thank You!
Q&A
Failure modes Small-Medium-Large sized leaks
Small-hole-sized leaks
Pitting LC/GC
Rupture
Photo: http://fj.sina.com.cn/news/s/2010-12-01/100882007.html
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NACE SP0502
Pipeline External Corrosion Direct
Assessment Methodology
1.Pre-Assessment
Collection and analysis for pipeline data
2.Indirect Examination
Cross-reference for both inspection methods like PCM & CIPS
3.Direct Examination
Excavation, thickness measurement
4.Post-Assessment
Root cause analysis , and remaining life analysis
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Temporary repair management
Pipeline location, Repair point record, Consequences simulation
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