iSURVEY Completes Nord Stream 2 Survey

November 7, 2018

(Photo: iSURVEY)
(Photo: iSURVEY)

Survey and positioning services provider iSURVEY said it has completed a 30-day geophysical seabed survey for offshore pipelay and subsea construction company Allseas.

The project team set out to identify obstructions and hazardous seabed features over a 40-kilometer section of route survey in the German Baltic prior to forthcoming pipelay anchoring and mooring operations for the Nord Stream 2 pipeline project.

Taking on a vessel charter, the iSURVEY team had full contract responsibility for the vessel, marine, survey, processing and reporting elements of the entire scope – a first for the group.

The survey was carried out from the 42-meter vessel SeaZip Fix, on charter to iSURVEY. The vessel served as platform for the survey and remotely operated vehicle (ROV) operations, with a moonpool deployment frame providing a retractable mounting location for vessel-based attitude monitoring, positioning and geophysical sensors. Combined multi-beam echo sounder (MBES) and side scan sonar (SSS) systems were utilized throughout the survey, along with a towed magnetometer/gradiometer system.

iSURVEY Offshore Managing Director, Andrew McMurtrie, said, “We are pleased to play our part in the Nord Stream 2 pipeline project, a significant construction scope. Having full control of the vessel spread, from a commercial and operational perspective, this is the nature of contracting model we aim to develop further. Working with SeaZip allowed us to do this in a highly cooperative way.”



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