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 June 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Yanmar Diesel Engines for Fast New Crew Tender

The expansion of the number of wind turbines out at sea near the northern Dutch coast was reason enough for Ubels Offshore to expand its fleet with a fifth ship last year.

The Hour of Power: Hybrid Marine Technology and Green Ports

In 2015 two significant developments are going to make many operators, owners and builders of professional vessels consider hybrid marine power. Firstly the new emissions laws in ports,

GTT Records Order for 2 LNG Tankers

GTT receives a new order from Hyundai Samho Heavy Industries for two LNGCs for Teekay   GTT, a designer of membrane containment systems for the maritime transportation

Offshore

Yanmar Diesel Engines for Fast New Crew Tender

The expansion of the number of wind turbines out at sea near the northern Dutch coast was reason enough for Ubels Offshore to expand its fleet with a fifth ship last year.

Shell Green Lights GoM Field After Cost Cuts

Royal Dutch Shell has given the green light for the development of its largest platform in the Gulf of Mexico after making steep cost cuts which made the deep water

Statoil to Suspend Saipem Rig Contract

Norwegian oil major Statoil said on Wednesday it will suspend a rig contract with Italy's Saipem due to overcapacity in its rig portfolio. The suspension of

 
 
Maritime Careers / Shipboard Positions Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Ship Electronics Ship Simulators Winch
rss | archive | history | articles | privacy | 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: 0.1247 sec (8 req/sec)