NDLI: Pressure Cycling Monitoring Helps Ensure the Integrity of Energy Pipelines

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Song, Peter Lawrence, Doug Keane, Sean Ironside, Scott Sutton, Aaron
Copyright Year	2010
Abstract	Liquids pipelines undergo pressure cycling as part of normal operations. The source of these fluctuations can be complex, but can include line start-stop during normal pipeline operations, batch pigs by-passing pump stations, product injection or delivery, and unexpected line shut-down events. One of the factors that govern potential growth of flaws by pressure cycle induced fatigue is operational pressure cycles. The severity of these pressure cycles can affect both the need and timing for an integrity assessment. A Pressure Cycling Monitoring (PCM) program was initiated at Enbridge Pipelines Inc. (Enbridge) to monitor the Pressure Cycling Severity (PCS) change with time during line operations. The PCM program has many purposes, but primary focus is to ensure the continued validity of the integrity assessment interval and for early identification of notable changes in operations resulting in fatigue damage. In conducting the PCM program, an estimated fatigue life based on one month or one quarter period of operations is plotted on the PCM graph. The estimated fatigue life is obtained by conducting fatigue analysis using Paris Law equation, a flaw with dimensions proportional to the pipe wall thickness and the outer diameter, and the operating pressure data queried from Enbridge SCADA system. This standardized estimated fatigue life calculation is a measure of the PCS. Trends in PCS overtime can potentially indicate the crack threat susceptibility the integrity assessment interval should be updated. Two examples observed on pipeline segments within Enbridge pipeline system are provided that show the PCS change over time. Conclusions are drawn for the PCM program thereafter.
Sponsorship	International Petroleum Technology Institute and the Pipeline Division
Starting Page	583
Ending Page	587
Page Count	5
File Format	PDF
ISBN	9780791844205
DOI	10.1115/IPC2010-31394
e-ISBN	9780791838853
Volume Number	2010 8th International Pipeline Conference, Volume 1
Conference Proceedings	2010 8th International Pipeline Conference
Language	English
Publisher Date	2010-09-27
Publisher Place	Calgary, Alberta, Canada
Access Restriction	Subscribed
Subject Keyword	Cycles Fatigue life Supervisory control and data acquisition systems Pipelines Dimensions Fatigue Fracture (materials) Fatigue analysis Wall thickness Pressure Pipeline systems Pumps Fluctuations (physics) Pipes Fatigue damage
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effect of Pressure Loading on Integrity Management

Managing a New Pressure Cycling Reality in Liquid Pipelines

Evaluation of Fatigue in Gas Pipelines

Estimating Fatigue Life for Pipeline Integrity Management

Optimized Methods of Recording Pipeline Pressure Fluctuations for Pipeline Integrity Analysis

Liquid Pipeline Location Specific Cyclic Pressure Determination

Allowable Pressure Cycling Limits for Liquid Pipelines

Deterministic Assessment of Minor Mechanical Damage on Pipelines

Integrity Analysis for Dents in Pipelines

Pressure Cycling Monitoring Helps Ensure the Integrity of Energy Pipelines

Similar Documents

Effect of Pressure Loading on Integrity Management

Managing a New Pressure Cycling Reality in Liquid Pipelines

Evaluation of Fatigue in Gas Pipelines

Estimating Fatigue Life for Pipeline Integrity Management

Optimized Methods of Recording Pipeline Pressure Fluctuations for Pipeline Integrity Analysis

Liquid Pipeline Location Specific Cyclic Pressure Determination

Allowable Pressure Cycling Limits for Liquid Pipelines

Deterministic Assessment of Minor Mechanical Damage on Pipelines

Integrity Analysis for Dents in Pipelines

Pressure Cycling Monitoring Helps Ensure the Integrity of Energy Pipelines