Huisman cranes on order for two subsea vessels

Offshore staff

SCHIEDAM, the Netherlands – Huisman has introduced a range of large offshore cranes, based on the company’s 200- to 400-metric ton (220- to 441-ton) offshore mast crane design.

The new series, suited to ultra-deepwater and harsh environment operations, include a 300- to 600-metric ton (330- to 661-tons) active heave compensation (AHC) subsea crane and a 450- to 900-metric ton (496- to 992-ton) AHC subsea crane. Huisman has received two orders from yards in Norway and South Korea.

Main hoist of the new cranes will be outfitted with either a 300-metric ton or 450-metric ton traction winch. A storage winch in the hold of the vessel will maintain the center of gravity as low as possible.

The storage winch can contain 200, 400, or 600 metric tons of wire rope, reeved into two falls to achieve the maximum capacity. Huisman sales manager Gerben Roks said the company decided against single fall following research and operational feedback from clients.

“Besides the obvious handling problems with very large diameter wire ropes, the short life span results in tremendous operational expenditures for the operator,” he added. For this reason, Huisman has developed an anti-twist device to mitigate the risk of twisting of the lower block and wire rope (“cabling”) during subsea lifts in double-fall configuration.

Heave compensation on the main hoist is achieved using a combined active and passive system. The passive part widens the weather window for lifting operations as it reduces the dynamic loading on the crane during splash zone lifts up to 50%.

The active part is designed to maintain effective active heave compensation performance at a low power consumption. Wear and tear on the wire rope is lower than with traditional AHC systems, Huisman claims, as there is no drum crushing or wire rope cut-ins on the winch and the number of sheaves is minimized. All sheaves have a diameter ratio of 25 compared to the wire rope.

VARD shipyard in Norway, owned by Fincantieri, has ordered a 900-metric ton AHC subsea crane for a 161-m (528-ft) long subsea construction vessel for DOF Subsea.

Hyundai Heavy Industries will install a 600-metric ton AHC subsea crane on a new 160-m (525-ft) DP-3 heavy construction and flexible pipelay vessel for Subsea 7.

6/20/2013

Related Articles

VBMS to link Ravn to German North Sea platform

Jan 15, 2015

Wintershall has contracted VBMS for subsea works associated with the Ravn field development in the Danish North Sea.

Compact separation technology enhances subsea boosting

Jan 15, 2015 Implementation of subsea boosting over the last decades has included multi-phase pumps, some with separation and pumps combined. To further improve robustness, reduce risks, and reduce total capex,...

Woodside lines up deepwater well offshore South Korea

Jan 15, 2015

Woodside Petroleum says it plans to drill an exploratory well this fall on the deepwater Ulleung basin block 8/6-1N offshore eastern South Korea.

Statoil's subsea factory tackles the power source hurdle

Jan 15, 2015 Statoil's ambitious goal of launching a subsea factory in deeper and colder environments by 2020 is on track. By making incremental improvements and tapping into innovative technology from other in...

Seismic bids under review for deepwater block offshore Egypt

Jan 15, 2015

Petroceltic and partner Edison plan to acquire seismic data this year over their recently awarded North Thekah block in the deepwater Mediterranean Sea offshore Egypt. 

Trending News

EMAS AMC christens Lewek Constellation

Mar 2, 2015

EMAS AMC, the subsea division of EMAS, has christened and named the Lewek Constellation prior to its departure to the Gulf of Mexico to commence work for Noble Energy. 

McDermott receives EPCI contracts offshore Qatar, Saudi Arabia

Mar 2, 2015

Qatar Petroleum has contracted McDermott International Inc. (NYSE:MDR) to supply a new jacket, temporary deck, and replacement umbilical for the North Field Alpha gas development offshore Qatar. 

Pioneering Spirit to install Johan Sverdrup platform topsides

Mar 2, 2015

Statoil has signed a contract with Allseas for installation of three platform topsides on the Johan Sverdrup field. 

Gassco takes charge of Knarr pipeline operations in North Sea

Mar 2, 2015

Gassco has taken over as operator of the pipeline that will transport rich gas from the BG-operated Knarr field to the UK.

SSTB 2015: World’s largest subsea conference opens in New Orleans

Mar 2, 2015

PennWell Corp. and Offshore magazine have launched the 2015 Subsea Tieback Forum & Exhibition at the Ernest N. Morial Convention Center in New Orleans. 

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue

Oil & Gas Jobs

Search More Job Listings >>