iSURVEY, a leading provider of survey and positioning services to the global oil and gas, offshore renewables and telecommunications markets, has successfully completed a 30-day geophysical seabed survey for Allseas, a major offshore pipelay and subsea construction company.

As part of the forthcoming Nord Stream 2 pipeline project, the contract marked a first for the iSURVEY Group. Taking on a vessel charter, the team had full contract responsibility for the vessel, marine, survey, processing and reporting elements of the entire scope.

1 Launch of iSURVEY EquipmentThe project involved the team identifying any obstructions or hazardous seabed features prior to forthcoming pipelay anchoring and mooring operations.

This 40km section of route survey took place in the German Baltic and was carried out from the SeaZip FIX, on charter to iSURVEY. This proved an ideal platform for the survey and 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 utilised throughout the survey, along with a towed magnetometer / gradiometer system.

iSURVEY Offshore Managing Director, Andrew McMurtrie, commented: “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 co-operative way.

“Not only did this project bolster the development of our seabed survey capability, but it provided our project teams - onshore and offshore – the opportunity to prove themselves highly capable in safely delivering results to our client in a timely and efficient manner.”

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