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24" Hydrocarbon Line Isolation

A defect was detected on the 24"x4" weldolet connected to the 24"-PT-01-002-P3D line to the 1st stage separator, and therefore the need of replacing the corroded 4" branch with a new spool


Isolation for hydrocarbon system repair / IK-Field Service


September - October 2019


United Kingdom (UK), Scott Platform (North Sea)

Project Manager:

Peter Bjørnsen

IK-Group was to asked to provide a solution to isolate the 24" Line 24"-PT-01-002-P3D from hydrocarbons during the welding operation of the new 4" spool. We proposed a solution for isolating the 24" line which consisted of installing a 24" ABiS™ set on the upper side of the 4" branch, to create a double isolation barrier with monitoring of hydrocarbons between the barriers, and a single isolation barrier with by a pass line on the lower side of the 4" branch, pending space limitations.

  • Urgent delivery, custom-built
  • DBB gas isolation system DBB isolation set including real time logging and LEL verification and high LEL alarm warning system
  • Possibility to retrieve the 24" Isolation system via a 4" branch


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