Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

08142 The Utilization of a Pipeline Integrity Management System for ECDA Management within Gasunie

Picture for 08142 The Utilization of a Pipeline Integrity Management System for ECDA Management within Gasunie
Available for download
Product Number: 51300-08142-SG
ISBN: 08142 2008 CP
Author: Menno T. Van Os, Piet Van Mastrigt, and Giorgio G.J. Achterbosch
Publication Date: 2008
$0.00
$20.00
$20.00
Gasunie has utilized External Corrosion Direct Assessment (ECDA) as proposed by the NACE as a valuable method to assess the corrosion threat to unpiggable pipelines. ln addition, a new probabilistic methodology has been adopted to quantify the results of an ECDA and to account for any uncertainties experienced throughout the process. This approach, based on Structural Reliability Analysis (SRA) and Bayesian statistics, uses the data gathered in the pre-assessment to calculate a failure frequency for each ECDA region defined. In the indirect inspections step, the method allows automatic updating of the expected number of both coating and corrosion defects based on the results of two aboveground surveys (one for the detection of each). In the direct examinations step, the method uses the results from excavations to automatically update the performance characteristics of the survey techniques (e.g. probabililty of detection and probability of false indication), the time of initiation of corrosion defects, the defect depth, corrosion growth rate and several other relevant parameters. The failure frequency is updated accordingly.
Gasunie has utilized External Corrosion Direct Assessment (ECDA) as proposed by the NACE as a valuable method to assess the corrosion threat to unpiggable pipelines. ln addition, a new probabilistic methodology has been adopted to quantify the results of an ECDA and to account for any uncertainties experienced throughout the process. This approach, based on Structural Reliability Analysis (SRA) and Bayesian statistics, uses the data gathered in the pre-assessment to calculate a failure frequency for each ECDA region defined. In the indirect inspections step, the method allows automatic updating of the expected number of both coating and corrosion defects based on the results of two aboveground surveys (one for the detection of each). In the direct examinations step, the method uses the results from excavations to automatically update the performance characteristics of the survey techniques (e.g. probabililty of detection and probability of false indication), the time of initiation of corrosion defects, the defect depth, corrosion growth rate and several other relevant parameters. The failure frequency is updated accordingly.
Product tags
Also Purchased
Picture for 08141 ECDA Indirect Assessment Methods - Limitations and Resolution in Presence of Dynamic Stray Cur
Available for download

08141 ECDA Indirect Assessment Methods - Limitations and Resolution in Presence of Dynamic Stray Currents

Product Number: 51300-08141-SG
ISBN: 08141 2008 CP
Author: Mark Yunovich
Publication Date: 2008
$20.00
Picture of 06188 DEVELOPMENT OF ECDA CRITERIA FOR PRIORITIZATION OF INDICATIONS
Available for download

06188 DEVELOPMENT OF ECDA CRITERIA FOR PRIORITIZATION OF INDICATIONS

Product Number: 51300-06188-SG
ISBN: 06188 2006 CP
Author: Daphne D'Zurko, Oliver C. Moghissi, James Patrick McKinney and Mark E. Orazem
$20.00
Picture for 07150 Lessons Learned Applying ECDA
Available for download

07150 Lessons Learned Applying ECDA

Product Number: 51300-07150-SG
ISBN: 07150 2007 CP
Author: Ray A. Ward and Alberto Valdes
Publication Date: 2007
$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