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Eidesvik Atlantic

Eidesvik Atlantic is a company in the Eidesvik Fishing Group. The company carries out service missions for the offshore industry by utilizing group fishing and service vessels for various service tasks. These are vessels that are well suited for this type of assignment and that is significantly cheaper to run than specialized offshore vessels.

OVID – The Offshore Vessel Inspection Database

Both Elisabeth and Bømmelbas is registered and approved in the OVID database.

Gravity coring

We have been doing gravity coring since 2005 in water depths to below 2000 m. With gravity coring the corer is lowered by the winch at top speed down to 50 – 100 m above the sea bed. The vessel is then moved, if necessary, so that the corer is within the target, and then lowered again at top speed on the winch into the sea bed, thus collecting the core which is then winched back onboard. For some surveys special coring winches have been utilised while on other surveys the winches normally used for the purse seining have been used. Depending on what is required the winch speed can be from 50 to 200 m/min.

For all the surveys the vessel has been equipped with a hydraulic corer bell, making the coring safe even in rough weather, up to gale force. When operating with such a system, the core barrels can be up to 6 m.

Vibro Coring

Vibro coring surveys have been undertaken since 2007. For all the vibro coring surveys a hydraulic vibro corer has been used. The vibro corer is standing vertically on a platform on the deck and being lifted over the gunwale using a crane when in position. Core barrels up to 4.5 m can be used. With this equipment samples have been collected at up to 650m water depth, but the equipment can be used down to 900m. It is also possible to use other types of vibro corers from MV Elisabeth.

Box coring

Box coring is normally used for collection of sea bed samples for environmental analyses. Such samples have been collected from MV Elisabeth since 2007 using different types of box corers at water depths from 50m to 1300m.The deck crane is used for lifting the box corer in and out from the deck, while the coring winch has been used for lowering the corer to the sea floor and bringing it back to the surface. Different types of grabs can be used on the Elisabeth for collecting sea bed samples for environmental studies.

Side Scan Sonar

Side scan sonar has been used on “Elisabeth” since 2007. The system is used from the back deck where the “fish” is launched using the crane on the back deck. Side scan sonar has been operated down to a depth of 1300 m.

Deploying and retrieval of weather buoys

MV Elisabeth has been used regarding deploying and retrieval of large weather buoys since 2005 at water depth up to 1200m using the different deck cranes onboard.

Other types of surveys

According to personnel who have used both MV Elisabeth and other vessels for different surveys world wide, MV Elisabeth would also be a suitable vessel for various other types of surveys than those described above. MV Elisabeth could be used for surveys such as piston coring, boomer surveys, sparker surveys, mini gun surveys and smaller ROV surveys.

Here you can read the brochure for our offshore services.