Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

09138 Using a Common Gas Source for Defining DG-ICDA Regions: A Case Study

Picture for 09138 Using a Common Gas Source for Defining DG-ICDA Regions: A Case Study
Available for download
Product Number: 51300-09138-SG
ISBN: 09138 2009 CP
Author: Jim Ponder and Adam Ray Gardner
Publication Date: 2009
$0.00
$20.00
$20.00
Defining the boundaries of DG-ICDA regions is a critical aspect of conducting Dry Gas Internal Corrosion Direct Assessment (DG-ICDA). Gas transmission pipeline operators with multiple laterals which originate from a common trunk line could conceivably consider each lateral or purchase point off the trunk line as individual DG-ICDA regions. This methodology can result in unnecessary digs and increased project reporting needs, ultimately increasing project scope. In cases where inline inspection was used as the integrity assessment methodology addressing internal corrosion on the trunk line, multiple laterals which tap off the same trunk line can be combined into one ICDA region. This paper shares a case study in conducting DG-ICDA by combining multiple laterals with take-off points from a common gas source into one ICDA Region, introduces a practice for establishing representative flow conditions to consider the impact of flow rate variability on direct examination site selection and elaborates on the interpretation of the gas hold-up equation.

Keywords: DG-ICDA, Dry Gas Internal Corrosion Direct Assessment, Case Study, Parametric Study
Defining the boundaries of DG-ICDA regions is a critical aspect of conducting Dry Gas Internal Corrosion Direct Assessment (DG-ICDA). Gas transmission pipeline operators with multiple laterals which originate from a common trunk line could conceivably consider each lateral or purchase point off the trunk line as individual DG-ICDA regions. This methodology can result in unnecessary digs and increased project reporting needs, ultimately increasing project scope. In cases where inline inspection was used as the integrity assessment methodology addressing internal corrosion on the trunk line, multiple laterals which tap off the same trunk line can be combined into one ICDA region. This paper shares a case study in conducting DG-ICDA by combining multiple laterals with take-off points from a common gas source into one ICDA Region, introduces a practice for establishing representative flow conditions to consider the impact of flow rate variability on direct examination site selection and elaborates on the interpretation of the gas hold-up equation.

Keywords: DG-ICDA, Dry Gas Internal Corrosion Direct Assessment, Case Study, Parametric Study
Product tags
Also Purchased
Picture for DG-ICDA: How Confident Are You in Your Inspection Locations?
Available for download

51312-01437-DG-ICDA: How Confident Are You in Your Inspection Locations?

Product Number: 51312-01437-SG
ISBN: 01437 2012 CP
Author: Lynsay Bensman
Publication Date: 2012
$20.00
Picture for 08128 Improving the Success of ICDA Projects
Available for download

08128 Improving the Success of ICDA Projects

Product Number: 51300-08128-SG
ISBN: 08128 2008 CP
Author: Stephen F. Biagiotti
Publication Date: 2008
$20.00
Picture for 08130 Investigation on the ICDA Technology for Buried Steel Pipelines in the China Petroleum Industr
Available for download

08130 Investigation on the ICDA Technology for Buried Steel Pipelines in the China Petroleum Industry

Product Number: 51300-08130-SG
ISBN: 08130 2008 CP
Author: Qimin Lu
Publication Date: 2008
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support