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Keywords: close-interval survey
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Proceedings Papers

Interpretation of Indirect Inspections Data in the ECDA Process

S.M. Segall, P. Eng., R.A. Gummow, P. Eng., John Shore, P. Eng.
... on how he validates the data, how he selects the identification, classification and prioritization criteria and finally how he applies these criteria to the collected data. A close interval survey was conducted in 2010 on a 323.9 mm (12") dia. natural gas line. The last section of the line is mainly...
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Proceedings Papers

Field Survey Results of a Recently Developed Cathodic Protection Survey Methods to Improve the ECDA Process

Martin de Wacht
... produces data which is ideally formatted for the ECDA management software module, the productivity of the entire process was significantly improved. Close-interval potential survey close-interval survey CIPS CIS DCVG external corrosion direct assessment ECDA indirect inspection potential survey...
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Proceedings Papers

Preparing for Close-Interval Survey

Andrew G. Hevle
...Close-interval surveys are an integral part of maintaining safe pipeline operation. They are mandated by law in many countries. An accurate close-interval survey will provide in-depth knowledge and information required to maintain pipeline integrity. Thorough project planning is required...
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Proceedings Papers

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

Andrew G. Hevle
...SURVEY SELECTION Abstract Close-interval survey is one of the primary indirect inspection tools in applying direct assessment for external corrosion and stress corrosion cracking. While close-interval survey is a relatively mature tool in corrosion control, special considerations are necessary...
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