4. Field joint coatings

4.1 Different types of coating

When a pipeline is constructed, sections measuring between 12 m and 18 m in length are welded together. Figure 6 shows a welded joint following surface preparation. At the cut-backs, protection needs to be restored that is equivalent to the factory-applied coating, but under site conditions, which can sometimes be sub-optimal (poor weather, temperature, workspace). The application of coatings perpendicular to welded joints is thus a sensitive operation, requiring rigorous product selection and mastery of the application methods.

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors

+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year

From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Corrosion - Aging

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Field joint coatings

Previous
page Factory-applied pipe coatings

Inspection of coatings

Bibliographical sources

(1) - BAROUX (B.) - La corrosion des métaux, passivité et corrosion localisée . - Dunod (2014).
(2) - BERANGER (G.), MAZILLE (H.) - Corrosion et anticorrosion, pratique industrielle ....

Norms and standards

Paints & Varnishes – Corrosion protection of steel structures by protective paint systems - ISO 12944-5 - 2018
Preparation of steel substrates before application of paints and related products – Visual assessment of surface cleanliness – Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coating - ISO 8501-1 - 2007
Petroleum...

Regulations

Articles L. 555-1 to L. 555-30 of the French Environmental Code

Articles R. 555-1 to R. 555-52 of the French Environmental Code

GESIP technical guides

Decree of 5 March 2014 defining arrangements for the application of Chapter V of Part V of Book V of the Environmental Code including regulations on the safety of pipelines for the transport of natural...