SRD completes Frigg field acoustic subsea visualization program
SRD, part of the Westhill based Tritech Group, has successfully completed an acoustic subsea visualisation programme in support of decommissioning work on the Frigg field, located on the boundary between the British and Norwegian sectors of the North Sea.
In August this year SRD were contracted by Saipem UK’s Sonsub Division on behalf of Total Exploration & Production to provide acoustic subsea visualisation support.
The operation involved the removal and disposal of pipelines within a 500 metre radius of the platforms and was conducted from the vessel Normand Cutter. There was also a requirement to smooth the original protective rock berms to remove hazards for subsequent trawling activities. SRD’s Subsea Visualisation System (SVS) provided real time monitoring of the smoothing operation and was used for rapid assessment of the dispersal of material.
After all smoothing operations had been completed, it was necessary to remove seabed debris within the 500m zone around the platforms. SRD conducted a bathymetry survey of the whole field to identify potential items of debris and successfully located 20 items of debris, most of which were recovered to the surface, including pipe lengths, grab bags and a ship’s anchor.