MOTION COMPENSATED CABLE LAY SYSTEM - HUISMAN PRODUCT BROCHURE
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HUISMAN PRODUCT BROCHURE MOTION COMPENSATED CABLE LAY SYSTEM
ABOUT HUISMAN 2
01
We are Huisman. We design and manufacture
heavy construction equipment for the world’s
leading companies in the renewable energy, oil
and gas, civil, naval and entertainment markets.
Our products range from Cranes, Pipelay
Equipment, Drilling Equipment and Winches,
to Vessel Designs and Specials.
The history of Huisman is one of setting new
industry standards. Of making impact, since
1929. With step changing technical solutions
that vary from stand-alone to highly engineered
integrated systems. From concept to installation
and lifetime support. In these times of transition,
our passionate workforce and worldwide
production, service & sales facilities make us
equipped for impact.
3
MOTION COMPENSATED
FEATURES
Motion compensated cable lay can extend the weather window far The Touch Down Point (TDP) of the cable on the seabed can
beyond the operational limits of conventional cable laying vessels. shift over a large distance, which can cause damage to the
cable, especially when the lay trajectory is following a bend. In
¡ Weather window can be extended by approximately 50% that case the cable is dragged laterally over a large distance
more operational days and can snag around obstacles. Variations in cable tension can
¡ Motion compensated cable lay reduces the risk of cable failure cause difficulties during trenching or can cause cable failure in
¡ The reduction of tension variations improves also the lay case compression occurs.
perfomance:
- Reduces the chance of snagging cables on obstacles on When the motions of the overboarding chute exceed a critical
the seabed; and velocity, waves will start running along the catenary that can bend
- Facilitates trenching of the cable the cable beyond its minimal bending radius, causing damage.
¡ Modular design with straightforward interface for a swift These effects limit the weather window of conventional cable
mobilization laying vessels. Motion compensated cable lay mitigates these
effects by keeping the catenary stationary, by compensating the
Relatively small motions of the overboarding chutes can position of the overboarding chute for vessel motions.
result in large variation in the cable catenary to the seabed.
WORKABILITY SOUTHERN NORTH SEA
Hs [m]
Non-workable
Workable
Not tested
50% EXTRA WORKABILITY
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Tp [s]
4
D CABLE LAY 02
FULLY MECHANIZED QUADRANT HANDLING QUADRANT CURSOR SYSTEM
The quadrant is fully restrained from the start of the operation The quadrant handling system is equipped with a cursor
until it is released below the splash zone system. The quadrant motions are fully restrained until deployed
¡ Increased weather window beneath the splash zone
¡ Controlled and time efficient operation ¡ The cursor system avoids damage to the quadrant
¡ Increased safety ¡ Reduced catenary dynamics
MODULAR DESIGN, SHORT MOBILIZATION TIME
The system can be installed swiftly because of its modular
design and simple interface
¡ Can be installed using a single lift
¡ Integrated power and control systems minimize
interconnecting cable with the vessel
??? 5
MOTION COMPENSATED
FEATURES
ADJUSTABLE QUADRANT RADIUS CONTROLLED TOUCH DOWN POINT LOCATION
The radius of the quadrant can be adjusted from the MBR to Motion compensation keeps the touch down point of the cable
straight during lowering within a smaller target box
¡ Cable can be abandoned without uncontrolled drop onto ¡ A smaller target lane requires less survey and target lane
the seabed. Cable tension is controlled during the complete clearing activities
operation ¡ Dragging of the cable over the seabed, especially when
¡ Quadrant can be retrieved when cable is straight on the cornering, is avoided. Reducing tension variations and
seabed avoiding torque variations that can cause cable failure risks of snagging
n
io
cus
Ex
TDF shift
SYNCHRONIZED PULL-IN-WINCH
Synchronization of the Pull-in-Winch with the central control
system ensures better control of pull-in operations
¡ Improved tension control avoids overbending or
compression in the cable
¡ Controlled from vessel using a secure data connection
6 6
D CABLE LAY 02
REDUCED RISK OF CABLE FAILURE DURING EFFICIENT CPS STORAGE SYSTEM
TRENCHING CPS strings are loaded on board in containers and transferred
Motion compensated cable lay reduces the tension variations to the firing line using a gutter system
in the laid cable to a narrow bandwidth ¡ Containers allow for easy transport and loading
facilitating trenching ¡ Height adjustable ramp to extract a CPS from different elevations
¡ CPS gutter system independent of cable routing, allowing
parallel operations
¡ Safe access for personnel to containers
SPECIFICATIONS
14.5m
Width
60m
Height
8.5m
General
Product Storage
Maximum line pull including dynamics 35 mt
Storage capacity 2x 6000 mt
Minimum product OD 50 mm
Maximum product OD 500 mm Dimensions
Minimum bending radius product (in tension) 5m Length 60 m
Width 14.5 m
Motion Compensation System Height 8.5 m
Vertical Compensation Stroke +/-2.5 m
7HUISMAN
Admiraal Trompstraat 2
3115 HH Schiedam
P.O. Box 150
3100 AD Schiedam
Harbour no. 51
The Netherlands
Phone: +31 (0)88 070 22 22
Email: info@huisman-nl.com
01-2021
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