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Pusnes<br />
mooring systems
Photographer: Tor Resser
Aker Solutions <strong>Mooring</strong> systems 2012<br />
For more than one hundred years<br />
and thousands of ships<br />
Aker Solutions is a leading global supplier of marine<br />
and offshore products and services. We are<br />
recognised worldwide as a leader in the design,<br />
engineering and supply of innovative Pusnes deck<br />
machinery and Pusnes mooring and loading<br />
systems for marine and offshore applications.<br />
Aker Solutions’ aim is to be the preferred<br />
partner, based on our ability to understand our<br />
customers` business and add value to their projects.<br />
Close co-operation with classification societies<br />
and maritime authorities, combined with innovative<br />
design, quality products and worldwide lifecycle<br />
service, makes Aker Solutions the perfect partner for<br />
your marine and offshore projects.<br />
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4 <strong>Mooring</strong> systems 2012 Aker Solutions<br />
Safe and secure<br />
Blind Faith semisubmersible<br />
being<br />
transported to the Gulf<br />
of Mexico where it<br />
was installed in 2008.<br />
Pusnes RamWinches<br />
and chain fairleads<br />
for 127mm R4S chain<br />
were installed at the<br />
yard in Norway before<br />
sail-away.<br />
<br />
Pusnes RamWinches<br />
installed onboard the<br />
Nansen, the world’s first<br />
truss spar. The <strong>winches</strong><br />
are designed to endure<br />
submerged conditions<br />
prior to upending.<br />
<br />
Pusnes RamWinches<br />
on the Devil’s Tower<br />
spar platform in the<br />
Gulf of Mexico at a<br />
depth of 1720m.<br />
<br />
Aker Solutions has supplied Pusnes offshore<br />
mooring systems since 1968 and is recognised<br />
worldwide as an innovative designer and<br />
manufacturer of on-vessel mooring equipment<br />
for the offshore market. Many types of <strong>winches</strong>,<br />
fairleads and chain stoppers have been developed<br />
over the years.<br />
Aker Solutions believes that commitment to<br />
continued research, studies and development has<br />
strengthened our position as a leading international<br />
company on a worldwide basis. Exploration and<br />
production in harsh climate areas require innovative<br />
thinking. Together with our proven technology<br />
we meet new challenges and provide equipment<br />
designed for safe and secure operation under the<br />
most demanding scenarios. Our mooring systems<br />
onboard vessels in hurricane affected areas, such<br />
as the Gulf of Mexico, have on several occasions<br />
sustained the brutal forces these severe weather<br />
conditions can deliver.<br />
Innovative and proven technologies at competitive<br />
prices, as well as proximity to the market are both<br />
important factors for ensuring future competitiveness.<br />
We have worldwide production capabilities<br />
that allow timely support of quality products to an<br />
ever-changing global market.
Aker Solutions <strong>Mooring</strong> systems 2012<br />
Pull-in <strong>winches</strong> and equipment<br />
A typical riser pull-in<br />
arrangement onboard<br />
an FPSO.<br />
<br />
A 200 tonne lateral pullin<br />
winch onboard Total’s<br />
Greater Plutonio FPSO<br />
off the coast of West<br />
Africa.<br />
<br />
A 100 tonne lateral<br />
pull-in winch onboard<br />
Chevron’s Blind Faith<br />
semi-submersible in the<br />
Gulf of Mexico.<br />
<br />
Pull-in winch is a general term used to describe the<br />
various types of <strong>winches</strong> involved in pull-in operations,<br />
such as the riser pull-in and mooring line<br />
pull-in. Various ancillary equipment, for instance<br />
trolleys and turndown sheaves are often involved in<br />
operations such as the riser pull-in.<br />
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6 <strong>Mooring</strong> systems 2012 Aker Solutions<br />
<strong>Mooring</strong> <strong>winches</strong><br />
Aker Solutions mooring <strong>winches</strong> have evolved from<br />
steam-driven ship <strong>winches</strong> back in the late 1800s<br />
to the state-of-the-art electric and high-pressure<br />
hydraulic <strong>winches</strong> of today. Our offshore product<br />
range comprises anchor windlasses, chain jacks,<br />
traction <strong>winches</strong>, combination <strong>winches</strong> and rope/<br />
wire <strong>winches</strong>. Custom control and monitoring systems<br />
provide precise handling and management of<br />
a single winch or an integrated system of <strong>winches</strong>.<br />
Anchor windlass for a<br />
145mm chain onboard<br />
the Snorre B production<br />
platform in the North<br />
Sea. The windlass consists<br />
of four cable lifters<br />
with a single electric<br />
drive/gearbox and two<br />
fail-safe band brakes<br />
per cable lifter. Brakes<br />
can be released using<br />
stored energy<br />
(accumulator) in an<br />
emergency situation.<br />
<br />
Wire winch on the crane<br />
barge Saipem 7000.<br />
This is the largest<br />
mooring winch drum<br />
Aker Solutions has<br />
designed and manufactured<br />
to date. The drum<br />
can accommodate<br />
3000m of 96mm wire.
Aker Solutions <strong>Mooring</strong> systems 2012<br />
Chain jacks - Pusnes RamWinches became a<br />
popular choice for the mooring of production<br />
vessels after their introduction in 1997. Compact<br />
size and low weight contributed to this winch<br />
being used on the majority of all spar platforms in<br />
the Gulf of Mexico, and increasingly for semis, as<br />
pictured here onboard the Horn Mountain. Most of<br />
the spar RamWinches are designed to endure<br />
submerged conditions during transportation of the<br />
hull (up to several months).<br />
<br />
Pusnes Roller RamWinches TM onboard Shells’s Perdido Host Spar.<br />
The nine chain jacks are arranged in three equal groups along the top circumference<br />
of the hull. Stalling capacity of each chain jack is 725 tonnes.<br />
<br />
State of the art anchor windlasses for 84mm chain<br />
installed onboard the Aker Barents drilling rig.<br />
Designed specifically with the strict requirements<br />
for safe and reliable operations in mind.<br />
<br />
The movable windlass is a concept designed to<br />
operate multiple mooring lines within the same<br />
area. Normally, one windlass skids along a special<br />
foundation to operate one mooring line at a time.<br />
Photo depicts a movable windlass designed for<br />
the Goliat FPSO in the North Sea.<br />
<br />
In addition to movable windlasses, Aker Solutions has designed movable<br />
chain jack mooring systems. This is a graphic representation of one of four<br />
mooring clusters on an FPSO.<br />
<br />
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8 <strong>Mooring</strong> systems 2012 Aker Solutions<br />
Fairleads and chain stoppers<br />
Pusnes fairlead chain<br />
stopper from Aker<br />
Solutions being<br />
installed on the Dalia<br />
FPSO. These fairlead<br />
chain stoppers are<br />
installed on a number of<br />
FPSOs and semisubmersibles.<br />
The compact<br />
design, low weight and<br />
hull-mounted location<br />
contribute to lower topside<br />
deck weight. This<br />
unique design allows<br />
for chain locking in a<br />
long pivoting stopper<br />
arm on the side of a<br />
vessel’s hull, below the<br />
waterline. This<br />
constrains maximum<br />
loads to a limited area.<br />
Additionally, chain<br />
wear, static and fatigue<br />
stresses are greatly<br />
reduced.<br />
<br />
Pusnes chain<br />
stoppers come in<br />
various types and sizes.<br />
Photo displays a<br />
version delivered to the<br />
Greater Plutonio FPSO.<br />
<br />
Aker Solutions has an excellent reputation for<br />
the supply of high-quality, long-life fairleads and<br />
chain stoppers. They are designed for operation<br />
in all types of climate and for the harsh environments<br />
found both above and under water.<br />
Our latest fairlead designs include attachments<br />
that allow for the removal and re-installation of<br />
fairleads underwater, at the vessel’s offshore<br />
location. We have also designed the special<br />
tools needed for this operation.<br />
In recent years, a popular choice for offshore<br />
production mooring has been the innovative<br />
Pusnes fairlead chain stopper. This unique fairlead<br />
combines the flexibility of a flag-type fairlead<br />
with the holding ability of a chain stopper.<br />
3D graphic representation of the Pusnes fairlead chain stopper<br />
designed for the Goliat FPSO in the North Sea.
Aker Solutions <strong>Mooring</strong> systems 2012<br />
Pusnes eccentric chain fairlead. These fairleads are known for their<br />
robustness and they are virtually maintenance-free. Recent designs allow for<br />
installation/replacement without the use of a diver. The eccentric chain fairlead<br />
has become the preferred choice for both drilling and production<br />
vessels. These can also be designed for wire or chain/wire combination.<br />
Photo from Visund production platform.<br />
<br />
The Pusnes bellmouth chain stopper provides a simple means of chain<br />
holding in benign areas where the mooring line can run straight off the deck.<br />
The stopper is designed for the full breaking load of the chain. In addition, a<br />
mobile tensioning device has been designed to move from stopper to<br />
stopper. A portable hydraulic power unit can be delivered to power the<br />
tensioning device.<br />
<br />
Pusnes eccentric chain fairleads mounted on the hull of BP’s Greater<br />
Plutonio FPSO. The FPSO was installed off the coast of Angola in 2007. This<br />
type of fairlead has also been a popular choice for the many spar platforms<br />
found in the Gulf of Mexico.<br />
<br />
Pusnes bull’s eye chain fairlead is the grandfather of fairleads for offshore<br />
drilling rigs. Although we see a shift towards eccentric chain fairleads, bull’s<br />
eye fairleads still serve a purpose when the mooring line needs to be held<br />
close to the hull. These can also be designed for wire or chain/wire<br />
combination.<br />
<br />
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10 <strong>Mooring</strong> systems 2012 Aker Solutions<br />
Power supply and control systems<br />
A typical high-pressure<br />
hydraulic power unit<br />
with three pumps. The<br />
cooling of hydraulic<br />
oil can be done via<br />
seawater, freshwater, or<br />
an air system.<br />
<br />
Local control console<br />
for operating Pusnes<br />
RamWinches onboard<br />
the Blind Faith<br />
semi.<br />
<br />
Graphic display built<br />
into an operation<br />
panel for Pusnes<br />
Windlasses installed<br />
on the Aker Barents<br />
drilling rig. Each<br />
windlass is driven by<br />
a 450kW electric AC<br />
motor.<br />
<br />
Both high-pressure hydraulic and AC/DC<br />
electric power can be used to drive the various<br />
types of offshore mooring <strong>winches</strong>. The<br />
hydraulic power units (HPU) are of a stateof-the-art<br />
design that provides a dependable<br />
source of power and performance in harsh and<br />
varying offshore environments. High-pressure<br />
hydraulics in a “ring main” system enables<br />
use of smaller pipe diameters and shorter pipe<br />
lengths.<br />
Pusnes offshore <strong>winches</strong> from Aker Solutions<br />
are normally controlled by modern programmable<br />
logical controllers (PLC) in separate cabinets,<br />
where all status/alarm messages can be<br />
transferred to a designated control room. Graphic<br />
terminals with clear color displays act as an interface<br />
between operator and equipment.
Aker Solutions <strong>Mooring</strong> systems 2012<br />
Lifecycle services<br />
Lifecycle services<br />
locations for Pusnes<br />
mooring and loading<br />
systems.<br />
<br />
Aker Solutions has a worldwide lifecycle<br />
network which supplies customers with spare<br />
parts, service and support whenever and<br />
wherever the need arises. Aker Solutions´<br />
lifecycle services unit offers fast and efficient<br />
delivery of spare parts and skilled personnel<br />
for commissioning, maintenance and repair<br />
work. Beneficial equipment upgrades and<br />
modification of existing equipment and systems<br />
are also provided.<br />
Pusnes academy<br />
The Pusnes academy, located in Arendal, was<br />
officially opened in January 2009. The academy is<br />
equipped with top class modern facilities, ensuring<br />
the perfect learning environment. The Pusnes<br />
academy offers a number of product specific<br />
operator courses which include theory, operation<br />
and hands-on experience. Tailored courses are<br />
available upon request.<br />
Houston (USA)<br />
Macae (Brazil)<br />
Arendal (Norway)<br />
Busan (South Korea)<br />
Dubai (UAE) Shanghai (China)<br />
Singapore<br />
11
Aker Solutions mooring and loading systems:<br />
Head office<br />
Aker Pusnes AS<br />
PO Box 732, Stoa<br />
NO-4808 Arendal<br />
NORWAY<br />
Tel: +47 37 08 73 00<br />
Fax: +47 37 08 65 50<br />
pusnes@akersolutions.com<br />
North America<br />
Aker Solutions<br />
2103 City West Blvd, Suite 400<br />
Houston, TX 77042<br />
USA<br />
Tel: +1 713 270 2679<br />
Fax: +1 713 272 4070<br />
Mobile: +1 832 630 0112<br />
pusnes.houston@akersolutions.com<br />
© 2012 Aker Solutions<br />
All rights reserved.<br />
South America<br />
Aker Solutions do Brazil Ltda.<br />
Rodovia Amaral Peixoto km 162 –<br />
ZEN Rio das Ostras, RJ<br />
BRAZIL<br />
Tel: +55 22 2273 9010<br />
Mobile: +55 22 9283 5650<br />
pusnes.brazil@akersolutions.com<br />
Middle East<br />
Aker Solutions<br />
Plot No. 33, Port of Fujairah<br />
PO Box 2501<br />
Fujairah<br />
UNITED ARAB EMIRATES<br />
Tel: +971 9 228 2338<br />
Fax: +971 9 228 1898<br />
Mobile: +971 50 433 7750<br />
pusnes.dubai@akersolutions.com<br />
Asia<br />
www.akersolutions.com/pusnes<br />
Aker Pusnes Korea Co., Ltd.<br />
837, Daera-Ri, Gijang-Eub<br />
Gijang-Gun<br />
Busan 619-903<br />
SOUTH KOREA<br />
Tel: +82 51 720 6200<br />
Fax: +82 51 720 6230<br />
Mobile: +82 10 6583 7748<br />
office@pusnes.co.kr<br />
Aker Solutions Pte.Ltd.<br />
25, Benoi Lane<br />
SINGAPORE 627800<br />
Tel: +65 6303 4465<br />
Fax: +65 6303 4456<br />
Mobile: +65 9231 6890<br />
pusnes.singapore@akersolutions.com<br />
Aker Pusnes China<br />
Room 1008<br />
1155 Fang Dian Road<br />
Pudong, Shanghai<br />
P.R. China 201204<br />
Tel: +86 21 6035 6300<br />
Fax: +86 21 6035 6305<br />
pusnes.china@akersolutions.com<br />
Aker Pusnes AS Subsidiaries<br />
Aker Porsgrunn AS<br />
www.akersolutions.com/steeringgear<br />
Woodfield Systems Ltd.<br />
www.akersolutions.com/loadingarms<br />
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