Page 55: of Maritime Reporter Magazine (April 1998)

Hugin can be operated via accoustic sig- nals from above, or its underwa- ter survey mis- sion can be completely pre- programmed before its launch.

INTERNATIONAL OFFSHORE TECHNOLOGY

Powerful Underwater Survey

Vessel To Come On Line

Hugin is a high-precision, untethered seabed topography and inspection system (autonomous underwater vehicle [AUV]) which is designed to be a more reliable system for pipe inspection and lay- ing, as well as hydrographic map- ping. (Its name is derived from

Norse mythology: Odin, the king of gods, was known for his wisdom and cunning. The ravens, Hugin and Munin, flew around gathering knowledge for him.)

The fact that the unit works without a tether, combined with other technological advances, allows the vessel to work in very deep waters, controlled via acoustics. According to officials at

Kongsberg Simrad, which is a major participant in the develop- ment project, the prototype vessel currently can operate in depths to 1,968 ft. (600 m), and will eventu- ally be able to work in depths to 6,561 ft. (2,000 m).

As with many other Norwegian maritime innovations, the develop- ment of Hugin is a collaborative effort which includes: the

Norwegian Defence Research

Establishment; Kongsberg Simrad;

Nutec; Statoil; and the Norwegian

Industrial and Regional

Development Fund.

The streamlined vessel mea- sures 15.7 ft. (4.8 m) long and weighs 700 kg. It features a high, four-knot operational speed at all depths, and it will be outfitted with multibeam echosounder for under- water surveys to depths of 600 m.

With the latest battery technology, the unit can work for 36 hours at any depth, and the unit stores com- plete data sets and transmits real- time summaries to the surface for purposes of quality assurance.

Hugin's advanced systems

Start To Asgard B

Construction

Construction of the topsides for

Statoil's Asgard B semi-sub- mersible gas platform kicked off as planned on March 2 at the Kvaerner

Rosenberg yard in Stavanger. Due to measure about 328 x 328 ft. (100 x 100 m), the topsides will have a dry weight of roughly 30,000 tons.

Construction of the living quarters has begun at Emtunga in Sweden.

The B installation is due to start producing gas from the field in the last quarter of 2000. allows a complete survey mission to be programmed in advance, or it can be controlled in real time.

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