0

Full Content is available to subscribers

Subscribe/Learn More  >

Failure Pressure Ratios and Implied Reliability Levels for Corrosion Anomalies on Gas Transmission Pipelines

[+] Author Affiliations
Wenxing Zhou, Changqing Gong

University of Western Ontario, London, ON, Canada

Shahani Kariyawasam

TransCanada Pipelines, Calgary, AB, Canada

Paper No. IPC2016-64383, pp. V001T03A017; 9 pages
doi:10.1115/IPC2016-64383
From:
  • 2016 11th International Pipeline Conference
  • Volume 1: Pipelines and Facilities Integrity
  • Calgary, Alberta, Canada, September 26–30, 2016
  • Conference Sponsors: Pipeline Division
  • ISBN: 978-0-7918-5025-1
  • Copyright © 2016 by ASME

abstract

This study investigates the relationship between the failure pressure ratio (FPR) and implied reliability level for corrosion anomalies on natural gas transmission pipelines governed by the Canadian oil and gas pipeline standard CSA Z662-15 The model recommended in Annex O of CSA Z662-15 is adopted to evaluate the burst pressure capacity of a given corrosion anomaly on a pipeline, and the first-order reliability method (FORM) is used to evaluate the reliability index of the anomaly by considering uncertainties associated with the pipe geometric and material properties, ILI-reported anomaly sizes, operating pressure and accuracies of the burst pressure capacity models. The analysis results suggest that the FPR-reliability index relationship for pipelines with utilization factors greater than or equal to 0.72 is independent of the pipe attributes and geometry of the corrosion anomaly, if the measurement error associated with the ILI-reported anomaly depth is relatively small. Sensitivity analyses are carried out to examine the sensitivity of the FPR-reliability index relationship to the measurement error associated with the ILI-reported anomaly depth.

Copyright © 2016 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In