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Re-Classifying Composite Pipeline
Failures Positions Industry to take
Appropriate Action to Eliminate
Future Failure Events
David Richardson, P.Eng.
(403) 880-2835
david@trustedpipelineadvisor.com
544 Pipeline Failure Events
2000 - 2020
440 of 544 failures
can be re-classified
as being caused by
excessive
unbalanced buckling
forces applied to
(anchored) joints;
triggered by cyclic
exposure to severe
slugging or water
hammer
Reclassify Pipeline Failures by Cause
Failures caused by exposure to operating conditions beyond the
pipeline physical capabilities; not the fault of the composite pipelines
Not the
Fault of
Composite
Pipelines
Integrity Management Strategy
TRIAGE – Composite Pipelines
Integrity Hazard Classification Model
10,476 Licensed Pipelines
Status = Operating
• TRIAGE risk assessment models consider exposure to
severe slugging & water hammer events
• Prioritizes installation of pressure monitoring devices
1 2 3 4 5 SUM PERCENT
5 378 101 37 6 64 586 6% RISK CLASS
4 381 77 80 12 174 724 7% 1258 35% SERIOUS
3 2455 428 222 43 385 3533 34% 1647 34% MODERATE
2 2492 490 132 29 204 3347 32% 7571 30% LOW
1 1675 353 82 24 152 2286 22% 10476 100% TOTAL
7381 1449 553 114 979
70% 14% 5% 1% 9%
SUM
PERCENT OF TOTAL
SEGMENT COUNT
Summary / Composites
Increasing Likelihood of Composite Failure
SEGMENT COUNT
Consequence
Business Loss
($)
Bad Actors
Risk Assessment - CompositesAlberta
December, 2020
Integrity Management Strategy
TRIAGE – Composite Pipelines
10,476 Licensed Pipelines
Status = Operating
The key to avoiding failures of composite
pipelines is to moderate operating practices to
avoid application of excessive axial forces at
fixed / anchored joints
Modify operating practices to moderate
severe slugging & water hammer events
Composite Pipelines
Root-Cause Event Tree - Production
10,476 Licensed Pipelines
Status = Operating
• Event - Composite Pipeline Failure
• Multi-Phase Production Service
• time-dependent failure by repeated
exposure to severe slugging
associated with well start-up events
AND OR No Data to SupportContributing Factor Additional Data Needed
10,476 Licensed Pipelines
Status = Operating
• Event - Composite Pipeline Failure
• High-Pressure Water Injection Service
• time-dependent failure by repeated
exposure to water hammer
associated with rapid pump shut-
down events
Composite Pipelines
Root-Cause Event Tree – Water Injection
Consider TRIAGE as a Complement
to Existing Integrity Management
Work Processes
• CONTACT US
• David Richardson, P.Eng.
• (403) 880-2835
• david@trustedpipelineadvisor.com

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Pipeline Failure Classification - Composite Pipelines

  • 1. Re-Classifying Composite Pipeline Failures Positions Industry to take Appropriate Action to Eliminate Future Failure Events David Richardson, P.Eng. (403) 880-2835 david@trustedpipelineadvisor.com
  • 2. 544 Pipeline Failure Events 2000 - 2020 440 of 544 failures can be re-classified as being caused by excessive unbalanced buckling forces applied to (anchored) joints; triggered by cyclic exposure to severe slugging or water hammer Reclassify Pipeline Failures by Cause Failures caused by exposure to operating conditions beyond the pipeline physical capabilities; not the fault of the composite pipelines Not the Fault of Composite Pipelines
  • 3. Integrity Management Strategy TRIAGE – Composite Pipelines Integrity Hazard Classification Model 10,476 Licensed Pipelines Status = Operating • TRIAGE risk assessment models consider exposure to severe slugging & water hammer events • Prioritizes installation of pressure monitoring devices 1 2 3 4 5 SUM PERCENT 5 378 101 37 6 64 586 6% RISK CLASS 4 381 77 80 12 174 724 7% 1258 35% SERIOUS 3 2455 428 222 43 385 3533 34% 1647 34% MODERATE 2 2492 490 132 29 204 3347 32% 7571 30% LOW 1 1675 353 82 24 152 2286 22% 10476 100% TOTAL 7381 1449 553 114 979 70% 14% 5% 1% 9% SUM PERCENT OF TOTAL SEGMENT COUNT Summary / Composites Increasing Likelihood of Composite Failure SEGMENT COUNT Consequence Business Loss ($) Bad Actors Risk Assessment - CompositesAlberta December, 2020
  • 4. Integrity Management Strategy TRIAGE – Composite Pipelines 10,476 Licensed Pipelines Status = Operating The key to avoiding failures of composite pipelines is to moderate operating practices to avoid application of excessive axial forces at fixed / anchored joints Modify operating practices to moderate severe slugging & water hammer events
  • 5. Composite Pipelines Root-Cause Event Tree - Production 10,476 Licensed Pipelines Status = Operating • Event - Composite Pipeline Failure • Multi-Phase Production Service • time-dependent failure by repeated exposure to severe slugging associated with well start-up events
  • 6. AND OR No Data to SupportContributing Factor Additional Data Needed
  • 7. 10,476 Licensed Pipelines Status = Operating • Event - Composite Pipeline Failure • High-Pressure Water Injection Service • time-dependent failure by repeated exposure to water hammer associated with rapid pump shut- down events Composite Pipelines Root-Cause Event Tree – Water Injection
  • 8.
  • 9.
  • 10. Consider TRIAGE as a Complement to Existing Integrity Management Work Processes • CONTACT US • David Richardson, P.Eng. • (403) 880-2835 • david@trustedpipelineadvisor.com