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Preventing and Mitigating Corrosion to Advance Pipeline Integrity
2017 Pipeline Safety Trust Conference November 2, 2017
New Orleans, LA
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Causes of Liquids Pipeline Releases
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21% 79%
2012-2016 TOTAL RELEASES (2,100 Releases)
CORROSION
ALL OTHER CAUSES
Information provided by API Data Mining Team
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39% 61%
MAINLINES (199 Releases)
83% 17%
FACILITIES (204 Releases)
Liquids Pipeline Releases By Location and Type
3
51% 49%
BY LOCATION (403 Releases)
2012-2016 ONSHORE PIPELINE CORROSION RELEASE DATA:
Mainline Facility External Internal Internal External
Information provided by API Data Mining Team; Excludes releases from tanks and offshore pipelines
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Internal and External Corrosion
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Internal Corrosion External Corrosion
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Design – Prevent – Mitigate: Layers of Defense
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1. Pipe wall thickness 2. External pipe coating 3. Cathodic Protection (CP) system 4. Test stations 5. Cleaning pigs 6. In-line Inspection (ILI) 7. Known low point 8. Sample points 9. Corrosion inhibitor 10. Corrosion rate monitoring 11. AC corrosion mitigation
AC
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10
9
8
7
6 5
4 3
+ -
- - - + + +
1 2
Creating layers of defense requires identifying “the
holes in the cheese”
ILI technology is a significant layer of defense
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Applying In-line Inspection (ILI) to mitigate corrosion
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Strong partnership between Operators
and technology providers
is key to success
APPLY TECHNOLOGY ANALYZE & INTEGRATE DATA VALIDATE PERFORMANCE
Select Technology
Inspect Pipeline (ILI)
Analyze Raw Data
Assess
Anomalies
Integrate Data Sets
Inspect Anomalies
(NDE) Determine
ILI Accuracy
MPL Vendor Vendor MPL MPL Vendor MPL
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Selecting Technology: Matching Tools to Threats
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DFMFL Dual Field
Magnetic Flux Leakage
MFL/HMFL
Magnetic Flux Leakage/
Helical Magnetic Flux Leakage
CMFL Circumferential Magnetic Flux
Leakage
GEO Geometry
UTCD Ultrasonic
Crack Detection
Tool
EMAT Electro
Magnetic Acoustic
Transducer UTWM
Ultrasonic Wall
Measurement Tool
RE-ROUNDED
SMOOTH/PLAIN
DENTS W/METAL LOSS CIRCUMFERENTIAL AXIAL
SEAM WELD BODY
CRACKS DENTS METAL LOSS DISBONDED COATING
MAGNETIC FLUX
ULTRASONIC
CALIPER
DEFECT CATEGORIES
APPLY TECHNOLOGY ANALYZE & INTEGRATE DATA VALIDATE PERFORMANCE
Select Technology
Inspect Pipeline (ILI)
Analyze Raw Data
Assess
Anomalies
Integrate Data Sets
Inspect Anomalies
(NDE) Determine
ILI Accuracy
MPL Vendor Vendor MPL MPL Vendor MPL
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Using Technology: Putting Tools to Work
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MFL
Magnetic Metal Loss
Sensors Ultrasonic Sensors
UTWM
APPLY TECHNOLOGY ANALYZE & INTEGRATE DATA VALIDATE PERFORMANCE
Select Technology
Inspect Pipeline (ILI)
Analyze Raw Data
Assess
Anomalies
Integrate Data Sets
Inspect Anomalies
(NDE) Determine
ILI Accuracy
MPL Vendor Vendor MPL MPL Vendor MPL
Magnetic Flux Leakage Tool
Ultrasonic Wall Measurement Tool
Used with permission from : Rosen Group
Used with permission from : NDT GLOBAL
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Other Data Sources
GIS
Data Integration: GIS Data
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APPLY TECHNOLOGY ANALYZE & INTEGRATE DATA VALIDATE PERFORMANCE
Select Technology
Inspect Pipeline (ILI)
Analyze Raw Data
Assess
Anomalies
Integrate Data Sets
Inspect Anomalies
(NDE) Determine
ILI Accuracy
MPL Vendor Vendor MPL MPL Vendor MPL
n Pipe Properties n Foreign Line Crossings n Coatings n Casings n MOP n Depth of Cover n Line Survey Data n Close Interval Survey Data n AC Power Co-locations n Span Locations n Waterway Crossings n Land Use Data n Aerial Imagery n Operational Data n Topography
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Validate Performance: Tool Tolerance and Specifications
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APPLY TECHNOLOGY ANALYZE & INTEGRATE DATA VALIDATE PERFORMANCE
Select Technology
Inspect Pipeline (ILI)
Analyze Raw Data
Assess
Anomalies
Integrate Data Sets
Inspect Anomalies
(NDE) Determine
ILI Accuracy
MPL Vendor Vendor MPL MPL Vendor MPL
l Field investigation and repair l Determine other mitigation requirements l Evaluate tool performance vs. specifications l Compare as found to as called
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Feedback & Continuous Improvement
l Leverage technology l Working with vendors to improve ILI l Research and development participation l API and NACE
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