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Nord Stream completes external inspection survey of pipelines

Published by
World Pipelines,

Nord Stream has completed an external inspection survey of two pipelines. The job was executed using a remotely operated vehicle (ROV) which was equipped with digital cameras, specific sensors and operated from a dedicated inspection support vessel. The visual and geophysical inspection was performed along the entire length of the particular pipelines which are located in the Baltic Sea.

The survey was conducted between May and November 2014 and it is planned to be performed again in 2015.

As expected, the results of the inspection confirm that the pipelines are still in a period of settlement and that all changes are in agreement with the design parameters.

The objective of the inspection survey was to collect high-quality data to assess the integrity of the two pipelines through an analysis of several factors. These factors include accurate position of the pipelines – both vertical and horizontal – depth of burial into the seabed, possible free-spans, condition of the cathodic protection system, verification of existing cables and pipelines crossings and the status of intervention works.

Edited from source by Elizabeth Corner

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