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Pipeline pressure isolation by TDW in Norwegian North Sea goes to plan


Published Apr 14, 2014
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T.D. Williamson-11

T.D. Williamson (TDW) has successfully completed a pipeline pressure isolation operation in the southern part of the Norwegian North Sea on behalf of a major operator.

TDW was called in to help prepare for maintenance works on an Emergency Shutdown Valve (ESDV) on a 20-inch main gas export line. To achieve this, TDW was contracted to isolate the affected portion of the line and perform a pressure test after completion of the ESDV repairs. TDW provided a wide range of services, including gauge and batch pigging, pipeline isolation and pressure testing.

TDW needed to verify the piggability of the line to ensure that its remote-controlled SmartPlug® pipeline isolation tool would be capable of negotiating the pipeline to the set location and be easily retrieved to the launcher. For this purpose, a full-scale piggability test was carried out at TDW’s onshore test facilities prior to the offshore operation.

Tags: T.D. Williamson




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