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Authors of the article

Petr Kubíček, CEPS

Martin Kugler, RWE Distribution Services

Information about the publication

Plyn, 2016, volume XCVI, issue 6, page 132–138, ISSN 0032-1761

REVIEWERS

Václav Herman
Tomáš Krása

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  • The First off-line inspection of a distribution high-pressure gas pipeline in the Czech Republic CZ PDF for screen (452 kB)

The First off-line inspection of a distribution high-pressure gas pipeline in the Czech Republic

April 2016 saw a unique off-line in-line inspection of a DN 300 high-pressure distribution gas pipeline that supplies Brno and, primarily, the Červeny mlyn combined cycle CHP plant. The inspection was carried out on a gas pipeline that had not been built as a cleanable, and therefore piggable, pipeline.

Compared with the standard method where the inspection tools are carried by the flow of the transported utility, here the inspection tool was driven by substitute utility, water.

The key objective of the in-line inspection was specifying very accurately the geometrical parameters along the entire length of the pipeline and identifying any metal loss in pipe walls due to corrosion.

The project employed special technologies that are not normally used in the Czech Republic, or that were applied for the first time ever. They included the off-line inspection, the process of the chemical cleaning of the pipeline and the use of a nitrogen-based inertisation mixture for gas expulsion from the pipeline.

Read more in the article The First off-line inspection of a distribution high-pressure gas pipeline in the Czech Republic (PDF, Czech language, 452 kB).


related services

The topic of this article is related to the following services of the company CEPS

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Off-line internal inspection of pipelines

Pigging services – mechanical and chemical cleaning

Nitrogen services

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related case studies

See related CEPS case studies

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New approach to the results of internal inspection

Džūkste–Peteri, Latvia
2013

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related documents

For more documents and other information, see the section about us

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Technical specifications CZ

about CEPS


related communications

Examine more in articles related to this topic

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Offline internal inspection in the Czech Republic

World Pipelines 4 / 2018

A new approach to the results of internal inspection

Pipeline Technology Journal 6 / 2015

Alternative drive for inspection pigs CZ

Plyn 2 / 2013

Slovgas 2 / 2013

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