COMMISSION 2 : External Corrosion & Cathodic Protection
updated december 2022
President: Ricardo Gutiérrez – Spain ricardo.gutierrez.m@exolum.com
Vice-President: Leopold Lovsin – Slovenia leopold.lovsin@projekt.si
Secretary: Lars Vendelbo Nielsen-Denmark lvn@metricorr.dk
Working group G – “pipeline casing control and monitoring” with convenor Ricardo Gutiérrez (ricardo.gutierrez.m@exolum.com)
The aim of this Working group is to prepare a document to describe fundamental recommendations and specifications to avoid corrosion of the cathodically protected carrier pipe inside the casings. The document will describe the methods to demonstrate that CP is effective.
This document is near to be finished and final discussions will be held in the next meeting.
Working group J – “Overline Pipeline Survey” with convenor Frances Bradfield (frbr@ramboll.dk)
Pipeline operators must find a way to inspect and survey their pipelines while continuing to run efficient, cost-effective pipelines. There are different types of overline inspections and tools to assess the pipeline integrity.
The initial thoughts and discussion have been done during the last meeting to decide and delimit the scope. The final content and scope will be discussed in the next meeting.
Working group K – “Overpolarization” with convenor Markus Buechler (markus.buechler@sgk.ch)
The goal of this Working Group is to clarify the contribution of CP with respect to over-polarisation. This topic is discussed in the context of the present understanding of the mechanisms associated with CP. Possible influencing parameters will be identified and described.
First review of the whole document was done in the last CEOCOR meeting, so in the upcoming meetings will be ready for distribution.
Working group L – “Environmental Conditions with convenor Sarah Leeds (drsleeds@dcvg.com)
The extent to which steels corrode depends very much on their composition and surface condition, the corrosive medium and the local environmental conditions. Therefore, there are key Factors to concentrate on for environment around pipeline with focus on buried pipelines. This document will not cover pipelines in seawaters or atmospheric pipelines, the scope will just consider pipelines buried in soils.
The final content and scope will be discussed in the next meeting.
Working group M – “CP in conjunction with External Coatings” with convenor Ashok Vimalanandan
ashokanand.Vimalanandan@oge.net)
The aim of this Working group M is to prepare a document that will provide a guideline of CP relevant (electrochemical) processes on intact and de adhered coatings. The detectability of different coating states by typical CP survey methods will also be discussed.
The final content and scope will be discussed in the next meeting.
Working group N – “Internal linings for steel pipelines carrying raw or potable water” (New WG Commission 1 & 2)
Convenor: Neil Webb (neil@isinyithi.co.za)
This working group is developing a guideline on the selection of lining type and thickness related to service life. This would provide asset owners and specifiers with a useful design tool applicable to both new works and rehabilitation / upgrading of existing infrastructure. The final content and scope will be discussed in the next meeting.