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A Study Of The Depolarization Phenomena In Soils And Remanence Of Corrosion Protection After CP Interruption

Product Number: 51322-17649-SG

Author: Clémence Rogier, David Sellam, Tiphaine Lutzler, Laurent Henry, Ahmed Fakhry, Yves Zannier, Elisabeth Fleury, François Castillon

Publication Date: 2022

$20.00

Oil and gas buried pipelines are protected against corrosion by both organic coatings, a passive protection system, and cathodic protection, an active protection system. When coating defects occur, CP controls the corrosion of the exposed steel surface. From an operating point of view, cathodic protection interruptions can occur on the network during interventions, consignments, or technical problems. Literature indicates that during CP interruption the corrosion rate of the metal remains lower than its free corrosion rate. Application of CP confers a remanence of protection to the metal. The objective of this study is to determine the safe duration for cathodic protection interruptions depending on environmental and cathodic protection conditions.

Products tagged with 'buried pipelines'

A Study Of The Depolarization Phenomena In Soils And Remanence Of Corrosion Protection After CP Interruption

Association for Materials Protection and Performance