Audacia is Allseas’ latest pipelay vessel. Operational since December 2007, she is optimised for the execution of small to large diameter pipeline projects of any length in all water depths, and for associated work such as the installation of risers and subsea protection frames.
Audacia is 225 m long, which in terms of size places her between Allseas’ DP pipelay vessels Lorelay and Solitaire. Precise manoeuvring on full dynamic positioning (DP) with a stinger positioned on the bow allow Audacia to work safely in congested areas and lay pipes in very deep water. Pipeline start-ups and lay-downs are executed in very quick time ensuring any disruption to other activities near platforms is minimised.
Due to her long length and ship-shape Audacia can accommodate multiple work stations and has a greater pipe hold capacity, and her independence from anchor handlers and large buffer capacity ensure she is less dependent on pipe off-loading from supply vessels. Her high transit speed, high lay speed and large carrying capacity make Audacia highly competitive for pipelay projects anywhere in the world.
Audacia conversion 2006 - 2007
The concept for Audacia was developed entirely in-house by Allseas. In June 2005 Allseas announced that it would be building a new 225-m DP pipelay vessel, to be named Audacia. Two months later, the Panamax type bulk carrier "Geeview" was procured.
The "Geeview" finally arrived at the Keppel Verolme shipyard, Rozenburg, in December 2005 and work to convert her into a pipelay vessel commenced in January 2006. Audacia left Keppel Verolme for sea trials in the North Sea in late September 2007 and successfully completed her maiden pipelay project in early December 2007.
Open the gallery on the right for a photo report of the Audacia conversion.
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Length overall (incl. stinger)
327 m (1,073 ft) -
Length overall (excl. stinger)
225 m (738 ft) -
Length between perpendiculars
217 m (712 ft) - Breadth
32 m (105 ft) - Maximum speed
16 knots -
Accommodation
270 persons -
Total installed power
35,100 kW -
Dynamic positioning system
NMD Class 3 / LR DP (AAA), fully redundant Kongsberg SDP-11 and
SDP-22 system -
Deck cranes
Pipe transfer crane:
30 t (66 kips) at 33 m (108 ft)
Special purpose crane:
150 t (331 kips) at 20 m (66 ft)
PLET installation frame:
550 t (1,213 kips) -
Working stations
7 (single joint) welding, 1 NDT and
3 coating stations -
Tensioner capacity
3 x 175 t (3 x 386 kips) at 30 m/min (98 ft/min) -
Pipe diameters
From 2" to 60" OD - Pipe hold capacity
14,000 t
