13 minute read
Jacket lifting
JACKET LIFTING SYSTEM COMPLETES FIRST DEPLOYMENT
Allseas’ Pioneering Spirit’s recent 8,100t lift is barely a third of its new system’s lifting capacity
The new jacket lifting system on Pioneering Spirit, the construction vessel designed and owned by Allseas, has completed its fi rst deployment and lifted an 8,100-tonne jacket from a gas production platform in the North Sea in a single lift.
And although the lift is considered one of the heaviest offshore jacket lifts ever, the weight is still well within the system’s lifting capacity of 20,000 tonnes, Allseas says.
The eight-legged jacket was lifted a week after the Pioneering Spirit arrived in the Ninian gas field, 160 km northeast of the Shetland Islands.
It has been lowered onto the deck of the vessel and will be delivered to the Veolia-Peterson yard in Dales Voe, which aims to reuse 98% of the steel it deals with.
Allseas says the lifting system is different from conventional crane-lifting vessels in that it is aft mounted and comprises two connected 170-metre long beams that lift and support jackets of all sizes during removal and installation operations. ”The original idea for a jacket lift system dates back to the late 1980s, when Allseas’ concept for a vessel capable of lifting entire platforms in a single lift was unveiled,” said Kristian Hall, communications officer for Allseas. ”There were numerous tweaks to the design before a decision on the final design was made several years ago. Fabrication got under way in 2019. The aft-mounted jacket lift system is the vessel’s second unique lifting system. The bow is fitted with a motion-compensated topsides lift system (TLS), capable of lifting entire platform topsides up to 48,000 tonnes. safeguard structural integrity, and direct transfer to and from the quayside means support barges are not required. ”There is no need to seafasten the jacket to the beams during transit due to the vessel’s high level of stability, significantly reducing time in the field and lowering the emissions footprint.”
Ninian Northern is the first of several major jacket removal and installation commitments for Pioneering Spirit in 2022. The vessel will lift and transport more than 123,000 tonnes of structures for the offshore energy industry this year, utilising both its jacket lift and motion-compensated topsides lift systems.
All of Allseas’ vessels and equipment are designed entirely in house, said Hall. Some elements are built by the company’s fabrication unit, he says, while larger, more technical subsystems are subcontracted to sites around the world belonging to the likes of Huisman, Cimolai and Remazel.
All elements were transported to Rotterdam and installed and integrated in stages, with commissioning, testing and certification completed earlier this year.
“It is fundamentally different from conventional cranelifting vessels. When removing large jackets, conventionally they need to be cut up into small sections suitable for crane lifts, requiring lengthy and weather-sensitive, complex subsea cutting operations. Pioneering Spirit removes and installs jackets weighing up to 20,000 t in a single lift, thereby limiting subsea work and associated risks. In essence, our vessel is in the field only days compared to months required by smaller vessels. ”Jackets are lifted over the stern, for which the vessel is repositioned. After cuts have been made in the foundation piles at seabed level, or above the pile clusters as required, the main hoist blocks suspended from the 170-metre long main beams raise the jacket at the main legs. The jacket is subsequently aligned with the beams and lowered onto the deck for transit to a disposal yard. The system also enables the transport of jackets in a near-vertical position to safeguard structure integrity.”
The jackets can be transported in a near vertical position to
8 Pioneering Spirit’s
new jacket-lifting system
8 Pioneering Spirit
A next generation off shore installation vessel has been equipped with one crane manufacturer’s largest crane to date.
The Liebherr HLC 295000, which has been installed onboard DEME’s newbuild Orion I, is the company’s largest yet with a maximum lifting capacity of 5,000 tonnes. ”What we are witnessing here, is indeed a very memorable event. Fundamentally, it demonstrates what is achieved, when people are closely working together, especially alongside with a competent and reliable partner,” said Robert Pitschmann, global application manager heavy lift offshore, Liebherr.
Ground breaking
Liebherr said that the crane has a variety of functions and features which makes the HLC-Series unique in the market.
The crane’s base column, being only 16.8 metres diameter, means that it requires little space on deck and offers more storage space for transportation.
With its maximum capacity of 5,000 tonnes and an outreach of up to 151 metres, the HLC can manage large components, for example, during the decommissioning of offshore platforms.
Moreover, a maximum lifting height of 175m metres enables the HLC 295000 to operate at the required height right away without any adjustments.
For Liebherr, DEME is a strong affiliate and both have been working together cooperatively during recent years.
“Orion heralds a new era in the offshore energy industry – one which will be dominated by multimegawatt turbines, jackets and components. The combination of load capacity and superior lifting heights of Orion will enable DEME to play an important role in helping the industry successfully navigate the energy transition,” said Luc Vandenbulcke, CEO, DEME Group.
In the coming weeks, the vessel will be headed towards Rügen where it will be working on installing windfarms and decommissioning “old” energy platforms.
One of its first jobs will be working on the construction of the offshore windfarm Arcadis Ost I in the Baltic Sea.
GIANT CRANE FOR NEXT GEN INSTALLATION VESSEL
8 Liebherr has installed its largest crane yet, the
HLC 295000, onboard DEME’s newbuild Orion I What we are witnessing here, is indeed a very memorable ‘‘ event. Fundamentally, it demonstrates what is achieved, when people are closely working together, especially alongside with a competent and reliable partner
The ultimate choice for heavy duty applications
Part of the Fender Innovations Group
Italian crane manufacturer Amco Veba Marine has added a series of 40tm models to its range just in time for Seawork.
The new models have been designed from the ground up and extensively tested in the marine environment to offer high performance, ease of use and straightforward maintenance. The range has also been designed with the highest level of modularity in models, features and accessories.
The most ergonomic working positions for crane operators and user-friendly interfaces combine to deliver accurate and safe operation with reduced working risk. A variety of radio remote controls are also available.
The 40tm family comprises two Endless Slewing models; the VR34 NGM (a 34tm model) and VR40 NGM (a 40tm model). Both these double linkage cranes have from two to eight extensions, allowing 8.02 to 20.90 metres of maximum outreach.
A Multi Level Protection (MLP) programme offers different protection levels, allowing the freedom to decide the most suitable level for the environment in which the crane is expected to operate.
Denso tape is standard with Amco Veba’s L2 protection level, with all hydraulic fittings protected with a manually applied oil-greased denso tape to provide excellent resistance to a salty environment.
A set of ABS LAC700 plastic covers protects more delicate hydraulic components such as valve banks, gear motors and swivel joints from water and UV rays.
Massimo Magli, Marine division Sales Director, said: “The high performance, maximum efficiency and high level of reliability, together with a wide range of innovative features and a variety of accessories and attachments, make these
AMCO VEBA INTRODUCES 40tm MARINE CRANES
8 Amco Veba Marine has added the 40tm family
to its successful New Generation Line cranes
cranes ideally suited for a huge range of marine and offshore applications.”
The New Generation line is produced in a new dedicated crane assembly line in Poviglio, Italy, developed according to the best-in-class manufacturing principles in terms of quality and efficiency. 8 Find out more about the whole Amco Veba
range on the quayside at Seawork
International 2022 on stand Q54.
Part of the Fender Innovations Group
Diff erent platform heights pose no problem with a new gangway from SMST, the company says.
Dutch maritime equipment maker SMST has unveiled an upgraded version of its gangway system with a new height adjustment capability that allows safer transfer of people and cargo between platforms of very different heights.
SMST has rented out its motioncompensated Telescopic Access Bridge L-Series, the next one in line to its M-Series, to the Italian shipping company Marnavi, which is using it on its multi-purpose supply vessel Ievoli Amber currently operating at the Saint-Brieuc offshore wind farm developed by Ailes Marines, an Iberdrola company.
SMST says Marnavi is the first company to use the latest gangway system.
“It enables safe and efficient transfer of people and cargo in offshore wind parks with large differences in landing heights and also extreme heights,” the company says.
The gangway is placed on seven stacking modules and the new integrated system means it can travel vertically up to 16 metres over a rail attached to them.
“Connections to offshore platforms can now be made with a large window of landing heights and comfortable crossing and maximum workability is possible at every level,” said SMST sales manager Jelle Dijk.
SMST, based in Drachten, also makes systems for access, lifting, drilling and pipe lay.
SMST UPGRADES ITS GANGWAYS TO L-SERIES
8 Marnavi Ievoli Amber SMST rental gangway TAB-L
Findoutabout Grapnels,LoadCells& CableWorkingEquipment atSeawork, Southampton
June21-232022
VisitDLM atStand C91
www.dlm-uk.com sales@dlm-uk.com
MOBILE BOAT HOIST DELIVERED TO UAE
MBK Marine Industries has added a Marine Travelift 200CII boat hoist to its operations as part of its ambitious plan to build a new shipyard at Abu Dhabi.
A 2,000 tonne floating dry dock, 150m jetty and the development of 87,000 m2 are due to be completed in the next few weeks, as well as a bay for operating the boat hoist. ”Services at this facility will include the building of commercial vessels, the repair, maintenance and modification of ships, construction of drilling platforms, and onshore and offshore oil and gas fields and facilities services,” the firm says.
Marine Travelift, based in Wisconsin, US, commissioned the hoist on schedule along with training for operation and maintenance. The company has delivered its product to shipyards in the US, New Zealand and the UK.
All of its boat handling equipment includes remote diagnostics, which allows marinas to use Bluetooth machine data and thus enables remote factory assistance.
MBK Marine Industries is wholly owned by H. H. Sheikh Mohammed Bin Khalifa Bin Zayed Al Nahyan.
SeaTrak
Electronic chart plotter which enables planning of waypoints and routes, ability to use tidal information to compute transit times. Interfaces to GPS and AIS for real-time navigation or vessel monitoring.
Navistick GPS Receiver Demonstrations of SeaTrak on Stand E145
All Chart packs only use information derived from data directly supplied from international including the UKHO
Supplied as part of the chart pack is tidal information, wind farm locations and wreck information all of which can be overlaid on to the charts.
Now Thames AIS Compliant
Chart packs incorporating SeaTrak can be purchased and downloaded from Meridian’s website.
www.meridian-chartware.co.uk
DSRV OVERHAUL FOR THE KOREAN NAVY
JFD will perform a midlife refi t on its Deep Search and Rescue Vehicle (DSRV) supplied to the Republic of Korea Navy
The underwater capability provider, which is part of James Fisher and Sons plc, is fulfi lling its ongoing contract to supply parts for the DSAR-5, which entered into service with the RoKN in 2008.
“We are delighted to continue to offer in-service support to the RoKN, ensuring our submarine rescue systems are maintained to the highest safety level,” said Alistair Wilson, strategy, sales & marketing director, JFD.
“JFD’s deep search and rescue submarine rescue vehicles are designed and built with more than 25 years of submarine rescue operational experience. We are proud to be able to offer our customers with parts, systems and services such as training, alongside our innovative submarine escape and rescue solutions.”
Overhaul
DSAR-5 is due to undergo an overhaul inspection and major maintenance period and JFD has been contracted by AMC Co Ltd and DSY Co Ltd to supply a range of electrical and mechanical spare parts to sustain the system into the future.
JFD has also signed a contract with the RoKN in 2018, to deliver a new Third Generation Deep Search and Rescue Vehicle (DSRV), which is due to commence sea trials later this year on the Korean ASR-II Submarine Rescue Ship.
The DSRV focuses on efficient design and optimising time to first rescue. It has been designed to maximise battery capacity and operational endurance, while ensuring minimal time is spent recharging the vehicle’s batteries so the DSRV can be quickly deployed in the event of an incident.
“It is exciting to have reached the point where we can start sea trials this year for the RoKN and our third generation submarine rescue system. JFD is at the forefront of submarine escape and rescue solutions that improve safety and preserve life in the event of an emergency. We continue to set new benchmarks and standards and this continuous development is not only our pedigree but how we deliver long-term value to all of our customers,” said Danny Gray, operations director, JFD.
JFD is an established provider to 80 countries and 33 navies worldwide, as well as providing the NATO Submarine Rescue System.
8 JFD has been
contracted by AMC Co Ltd and DSY Co Ltd to supply a range of electrical and mechanical spare parts to sustain the DSAR-5 system into the future
Emergency hull repairs completed in two days
Ship maintenance fi rm Hydrex repaired damage caused by Storm Eunice in record time.
Belgian underwater maintenance and repair services firm Hydrex has released details of an emergency repair it had to make on the vertical side of a ferry damaged by storm Eunice earlier this year, without a dry dock.
Vessel owner TESCO called the firm in to fix storm damage on the hull of the Texelstroom, which carries passengers from Den Helder on the Dutch mainland and Texel, the largest of five Dutch Wadden Sea islands that are classed as a UNESCO World Heritage site.
Hydrex immediately built a cofferdam at its fast response centre in Antwerp and ordered certified steel for the new insert plate.
Two days later the team arrived at the port of Texel with the cofferdam and equipment to inspect the damaged hull and agreed on installing the plate.
This was carried out inside the cofferdam, while the ship was afloat, approved by the classification society as permanent, and finished a further two days later with a successful leak test.
“The teams worked in shifts around the clock, which allowed us to complete the actual repair in just two days,” said Hydrex, and Texelstroom was immediately put back to work.
In April, Hydrex carried out an underwater stern tube seal repair on a container ship berthed at Algeciras, Spain.
The ship had an oil leak, so using a flexible mobdock, Hydrex carried out the entire repair on site and underwater, obviating the need and expense of going to a drydock.
8 Repairing Texelstroom
