Preventing and Mitigating Corrosion to Advance Pipeline Integrity

2017 Pipeline Safety Trust Conference November 2, 2017

New Orleans, LA

Causes of Liquids Pipeline Releases

2

21% 79%

2012-2016 TOTAL RELEASES (2,100 Releases)

CORROSION

ALL OTHER CAUSES

Information provided by API Data Mining Team

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

Internal and External Corrosion

4

Internal Corrosion External Corrosion

Design – Prevent – Mitigate: Layers of Defense

5

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

11

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

Applying In-line Inspection (ILI) to mitigate corrosion

6

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

Selecting Technology: Matching Tools to Threats

7

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

Using Technology: Putting Tools to Work

8

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

Other Data Sources

GIS

Data Integration: GIS Data

9

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

Validate Performance: Tool Tolerance and Specifications

10

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

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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