Menu
Search
Filters
Close
Menu

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

10057 Field Survey Results of a Recent Developed CP Survey Set to Improve the ECDA Process

Picture for 10057 Field Survey Results of a Recent Developed CP Survey Set to Improve the ECDA Process
Available for download
Product Number: 51300-10057-SG
ISBN: 10057 2010 CP
Author: Martin de Wacht
Publication Date: 2010
$0.00
$20.00
$20.00
Gasunie applies the External Corrosion Direct Assessment (ECDA) methodology to ensure the integrity of its non-piggable pipelines. To have a structured methodology available, a Pipeline Integrity Management System (PIMS) is in operation. For the non-piggable pipelines an ECDA management software module has been developed which is in operation. Within the ECDA process the indirect inspections (surveys) were found to be one of the critical factors. With the objective to improve the productivity and reliability of the ECDA process as well as the workability for surveyors, KEMA developed a new survey set. During 2007 and 2008 initial test were carried out to demonstrate basic principles of improvements. Based on these results, it was decided to spend R&D efforts on developing a prototype CP survey set that had to be capable of including new survey methods in addition to existing methods.

From the third quarter of 2008 onwards, this prototype has been applied extensively under realistic practical conditions in which new methods have been compared with existing methods.

The results of workability for surveyors have improved, as well as the results of the survey methods, particularly in situations with:

• External interference by stray currents

• External interference by AC interference

• Pipelines with rather large depth of cover.

The productivity of surveys remained dependant on the number of defects and could not be improved significantly. However, as the survey set produces data which is ideally formatted for the ECDA management software module, the productivity of the entire process was significantly improved.

KEY WORDS: Close-interval potential survey, close-interval survey, CIPS, CIS, DCVG, external corrosion direct assessment, ECDA, indirect inspection, potential survey, cathodic protection survey, CP
Gasunie applies the External Corrosion Direct Assessment (ECDA) methodology to ensure the integrity of its non-piggable pipelines. To have a structured methodology available, a Pipeline Integrity Management System (PIMS) is in operation. For the non-piggable pipelines an ECDA management software module has been developed which is in operation. Within the ECDA process the indirect inspections (surveys) were found to be one of the critical factors. With the objective to improve the productivity and reliability of the ECDA process as well as the workability for surveyors, KEMA developed a new survey set. During 2007 and 2008 initial test were carried out to demonstrate basic principles of improvements. Based on these results, it was decided to spend R&D efforts on developing a prototype CP survey set that had to be capable of including new survey methods in addition to existing methods.

From the third quarter of 2008 onwards, this prototype has been applied extensively under realistic practical conditions in which new methods have been compared with existing methods.

The results of workability for surveyors have improved, as well as the results of the survey methods, particularly in situations with:

• External interference by stray currents

• External interference by AC interference

• Pipelines with rather large depth of cover.

The productivity of surveys remained dependant on the number of defects and could not be improved significantly. However, as the survey set produces data which is ideally formatted for the ECDA management software module, the productivity of the entire process was significantly improved.

KEY WORDS: Close-interval potential survey, close-interval survey, CIPS, CIS, DCVG, external corrosion direct assessment, ECDA, indirect inspection, potential survey, cathodic protection survey, CP
Product tags
Also Purchased
Picture for Improving the Quality of ECDA Indirect Inspection Data
Available for download

Improving the Quality of ECDA Indirect Inspection Data

Product Number: 51317--9038-SG
ISBN: 9038 2017 CP
Author: Sorin Segall
Publication Date: 2017
$20.00

The quality of indirect inspection data is critical in an External Corrosion Direct Assessment (ECDA).  The need exists to increase the accuracy of the field data collection, to improve the data processing and to effectively present the results. This paper describes several challenges.
Picture for 11128 Interpretation of Indirect Inspections Data in the ECDA Process
Available for download

11128 Interpretation of Indirect Inspections Data in the ECDA Process

Product Number: 51300-11128-SG
ISBN: 2011 11128 CP
Author: Sorin M. Segall, R. A. Gummow and John Shore
Publication Date: 2011
$20.00
Picture for 07157 Use of Close-Interval Survey Data in Applying ECDA and SCCDA
Available for download

07157 Use of Close-Interval Survey Data in Applying ECDA and SCCDA

Product Number: 51300-07157-SG
ISBN: 07157 2007 CP
Author: Andrew Hevle
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