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Authors of the article

Aleš Brynych, CEPS

Cedrik Klimeš, E.ON Distribuce

Information about the publication

Plyn, 2017, volume XCVII, issue 2, page 73–80, ISSN 0032-1761

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  • Off-line inspection: An Important tool for investment decisions CZ PDF for screen (2681 kB)

Off-line inspection: An Important tool for investment decisions

A natural gas leakage was detected on the Kasejovice–Mikulášov high-pressure DN 600 pipeline near Čížová after 50 years of operation. The pipeline was uncovered and found to suffer from extensive corrosion; corrosion with similar dimensions was also found when another part of the pipeline was uncovered on the same site.

Applying good management principles, the operator therefore decided to carry out in-line inspection on a representative 15km section in order to check the actual condition of the piping and, on the basis of the results, determine further procedure for repair or renovation.

Conventional in-line inspection during operation is not feasible on most gas distribution pipelines, and the inspection was therefore carried out ‘off-line’: an ultrasonic inspection pig was pushed through the pipe in a controlled manner using water.

Read more in the article Off-line inspection: An Important tool for investment decisions (PDF, Czech language, 2681 kB).


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New approach to the results of internal inspection

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2013

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

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Technical specifications CZ

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Examine more in articles related to this topic

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Offline internal inspection in the Czech Republic

World Pipelines 4 / 2018

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

Plyn 6 / 2016

A new approach to the results of internal inspection

Pipeline Technology Journal 6 / 2015

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If you have any questions, do not hesitate to contact CEPS responsible persons

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Aleš Brynych

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info@ceps-as.cz

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