Jumbo Offshore Completes Wind Farm Project

Monday, September 13, 2010
Photo courtesy Jumbo Shipping vof

Jumbo Offshore has completed its TP-installation project for the Greater Gabbard Offshore Wind Farm (GGOWF), off the UK’s south-east coast. For client Fluor, Jumbo’s DP2 Heavy Lift Vessel Jumbo Javelin installed 131 TP’s (out of 140 in the field) with a record-breaking installation speed of more than one TP per day. The job included leveling and grouting operations and was done without any serious accidents or incidents. This is the first time that TP’s have been transported and installed using a free floating vessel on Dynamic Position.

Jumbo’s scope included transport, installation, leveling and grouting of the TP’s. During the mobilization in March 2010 the Jumbo Javelin was outfitted with job-specific equipment, amongst others Temporary Living Quarters (Ferguson), a grout plant (Densit) and an access system (Ampelmann). The Ampelmann is a ship-based, self stabilizing access system that actively compensates all vessel motions. It was used to give crew safe access from the vessel to the installed TP as well as efficiently guiding the grout hoses.

In addition, Jumbo developed and built its own passive lifting compensators (with a 2.5 m stroke and a Safe Working Load of 300 t) and two job-specific, remote release operated, spreader bars to lift the TP’s.

Each time after loading nine 280 t TP’s in the Port of Flushing, the Jumbo Javelin sailed to the offshore location where she positioned herself on DP and started overboading the first TP onto the monopile. Every TP was placed in the specified orientation and then leveled to its final position. Next, the annulus (the space between TP and monopile) was filled with grout to fix it permanently. After the final survey the TP was handed over to client Fluor.

The Jumbo Javelin is able to carry nine TP’s at a time, stowed vertically in the hold and each with weights up to 300 tonnes. The vessel is well-equipped for wind farm installation work: it is free floating, uses its DP2 system to create an efficient and safe working environment, has a transit speed of 17 knots and sails with open hatches. This means a large transport capacity, fast transit times to the installation site, fast installation and fast relocation from one position to the next.
 

Maritime Reporter July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Scottish Sea Farms Orders Newbuilds

Macduff Shipyards Ltd. has received a contract worth more than £3.3 million pounds from Scottish Sea Farms for the design and build of four 19.8-meter 150T steel

LNG Transport Barge Design Approved by ABS

Conrad Shipyard, L.L.C. engaged Bristol Harbor Group, Inc. (BHGI) to develop a 3,000 cubic meter Liquefied Natural Gas (LNG) transport barge utilizing a Bristol

Airbus May Sell Stake in Submarine Supplier

Airbus is considering a sale of its 49 percent stake in submarine supplier Atlas Elektronik as part of a reshuffle of its military business, German newspaper Die

Offshore

Gazprom, Vietnam Boost Cooperation in Energy Sector

The Gazprom headquarters hosted a working meeting between Alexey Miller, Chairman of the Company's Management Committee and Fam Suan Shon, Ambassador Extraordinary

Rosneft and NADL Sign Exchange of Assets Deal

Rosneft, Seadrill Limited and North Atlantic Drilling Limited (NADL) signed a Framework Agreement that envisages long-term cooperation in the sphere of oilfield development projects.

EBDG Completes Repower of COLUMBIA

Elliott Bay Design Group (EBDG), a leading naval architecture and marine engineering firm with offices in Seattle, New Orleans and Ketchikan, Alaska today announced

 
 
Maritime Contracts Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1064 sec (9 req/sec)