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CC003 Pipe coatings

Corrosion Control

Competency ID
and title

CC003 Pipe coatings

Competency area

Corrosion Control

Stream/s

Design, Construction, Operations

Level

Elective

Competency descriptor
This competency requires a pipeline engineer to have a comprehensive knowledge of pipe coatings and their role in protecting pipelines that will be used to ensure most appropriate design and operation of pipelines and related facilities.

Competency application
This competency enables a pipeline engineer to determine which coatings should be selected for the design and environmental conditions, how they should be specified and how they should be applied and inspected. It will also enable a pipeline engineer to respond to coating defect assessments, and specify appropriate repairs and maintenance requirements.

Prerequisites
CC001 – Corrosion control fundamentals

Competency elements

Element type

Element description

Knowledge

External pipe coatings:

·         corrosion protection effects of coating

·         issues and limitations for coating choice including environmental effects on the physical, mechanical and electrical properties on coatings

·         pipe coating materials

·         coating specification

·         coating quality assurance and inspection

·         pipe preparation for coatings

·         coating application and removal processes and related health safety and environment issues

·         managing issues for coatings that are no longer used

·         joint coating and sleeves – mechanical, physical and electrical properties of parent and field joint coating materials and their interfaces, materials and appropriate selection, including compatibility with main pipe coating

·         special construction coating applications – trenchless installation

·         inspection methods for factory application

·         inspection methods for field applied coatings including joint coatings

·         coating deterioration, damage and failure modes

·         Impact of pressure variations and pipe strain

·         ground conditions for buried pipe (eg aggressive ground conditions)

·         high/low temperature coating systems

·         coating systems under pipe supports, cladding, insulation and lagging

·         processes for assessing and accepting new coating technologies.

Pipe protection and weight coating:

·         coating protection systems – materials selection and specification

·         weight coating systems – rationale and objectives for use, materials selection and specification.

·         application inspection methods for applied protective and weight coatings.

Internal coatings:

·     internal coating materials

·     issues for use of, choice and specification of internal coatings

·     application inspection methods for internal coatings.

Above-ground protection:

·     paint and other coating systems

·     specification of coating systems

·     surface preparation and application requirements

·     application inspection methods.

Transition zone coating systems:

·     issues where pipe emerges from the ground

·     transition zone coating options, selection and specification

·     Inspection methods.

Experience

Three out of the following four:

Contribute to design specifications of coatings for a number of new pipelines/facilities.

Assist in or oversee a number of factory coating inspections.

Inspect in-field application of field joint application, such as FBE epoxy, sleeves and tape coatings.

Assess coating of operating pipeline and contribute to recommendations for replacement and repair.

Expertise

Assesses requirements for pipe coating in any particular pipeline/facility situation, identifies the best option and specifies the coating and the application requirements.

Identifies most appropriate methods for repairing and/or replacing failed or damaged coating.

Specifies quality assurance requirements for coatings and undertakes inspections.

Resulting capabilities of competency
Capable of taking responsibility for coating selection (taking into account its physical, mechanical and electrical properties), specification, qualification, application and quality assurance.

Capable of taking responsibility for specifying and undertaking quality assurance for coatings in the factory and in the field.

Capable of taking responsibility for repair and replacement of coatings on pipelines.