Drawing on years of experience
ODIM has, during several years, produced unique traction solutions that enable the use of fibre rope as a substitute for steel wire when working at great sea depths. Thus, the fibre rope's light weight is effectively utilised to handle larger payloads.
Control systems, winches and over-board systems are designed for the specific needs on vessels used in oceanography and deep-sea operations. Among the benefits are integrated solutions that free the floor the floor space and increase safety for those working on deck as well as the expensive underwater equipment.
Tailor-made solutions
We deliver complete tailor-made solutions, including our patented and field proven cable traction control unit technology to the Oceanographic market.
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Rolls-Royce offer complete automated handling systems for oceanographic and research survey vessels. Click on a product for more information.
CTD system
The CTD winch system consists of:
- Storage winch
- Spooling device
- Damper unit
- Traction unit
The CTD system is designed for handling CTD rosettes of all types and sizes. The winches have a compact design with electric drives, handling cable lengths of 10 000 meters or more.
By utilising a traction unit, a constant tension onto the storage winch is maintained, ensuring accurate spooling throughout the cable length, independent of the outboard load. Active heave compensation is available for the CTD system. Optionally, the CTD system can be delivered as a direct pull winch with integrated spooling device.
Deep water coring system
The Deep water coring winch system consists of:
- Storage winch
- Spooling device
- Damper unit
- CTCU
The Deep water coring system is designed for handling corers of all types and sizes. By using fiber rope and utilising the unique Fiber rope deployment system (FRDS) including the patented Cable traction control unit (CTCU) the depth limitations caused by using traditional steel wire is no longer an issue.
A complete Fiber rope deployment system includes high performance active heave compensation, proven to compensate for more than 95% of vessel motion.
Deep tow system
The deep tow winch system consists of:
- Storage winch
- Spooling device
- Damper unit
- Traction unit
The Deep tow system is designed for handling Deep tow vehicles of all types and sizes. The winches have a compact design with electric drives, handling cable lengths of 10 000 meters or more.
By utilising a traction unit, a constant tension onto the storage winch is maintained, ensuring accurate spooling throughout the cable length, independent of the outboard load.
The traction unit can also be substituted by a CTCU, either dedicated for the Deep tow system or shared with the Deep water coring system. Optionally, the Deep tow system can be delivered as a direct pull winch with integrated spooling device.
Overboard systems
A-frame:
Large specter of A-frames designed to meet all types off dimensions, loads and movements.
Offshore Crane:
Our integrated crane solutions are specially developed to meet the challenges of maritime handling operations. The range of offshore subsea cranes provides greater efficiency by extending the operational window in unstable waters.
The active heave compensation (AHC) technology enables the crane to maintain precision and load stability, by constantly adapting to wave motion. We offer a wide specter of AHC cranes ranging from 20 Te to 250 Te.
Parallelogram frame:
The frame is designed to handle and overboard large corers or other equipment without movement on the winch.
Overhead Crane:
The overhead crane runs on rails welded to hangar top. The crane is telescopic. Designed to handle and overboard large CTD rosettes or other equipment.
Overboard Corer Handling:
The system consists of:
- A-frame
- Corer Fork Crane
- Davits
The Over Board Corer Handling System is designed for automatic handling of large corers up to 50 meters or more. From remote operation the control system synchronizes the davits and provides a smooth linear operation form horizontal to vertical position.
Integrated crane solutions
Offshore cranes
Our offshore cranes are designed for the unique challenges of offshore operations. They provide optimal balance between lifting heavy weights and energy efficiency.
Lifting range: 400 TM – 2,000 TM
- FPSO
- Platforms and rigs
- Subsea vessels
Cargo rail cranes
The cargo rail crane is designed to achieve safer operations and more efficient logistics on deck. Its flexible and robust construction allows the operators to work continuously through rough weather conditions, offering a large operating radius at full load capacity along the railway. Additional tugger winch and handling tools for both fibre rope and pipe handling, makes it ideal for a large variety of offshore deck operations.
Lifting range: Up to 150 TM
- Multi purpose vessels
- Construction vessels
- Light well intervention vessels
Parellellogram frames
- SWL 20 T
- Outreach over side 2,5 m
- Secondary load 4,5 m/12 T
- Lifting height deck 5 m
- Eye plates 2 x 5 T
- Aux. winches 5 T/100 m
Trawl system
Consists of a direct pull winch with integrated level wind. The system can also be delivered as traction unit and storage winch.
The trawl system is designed for handling trawls of all types and sizes. The winch has a compact design with electric drives, handling cable lengths of 10 000 meters or more.
Traction unit
The Traction Unit is designed to operate in combination with Storage Winch for handling of the cable. The Traction Unit consists of two drums mounted in a common frame structure. The drums have grooves adapted to the cable specified to be used. Pulling capacity is normally between 2 – 20 tons.
Spooling device
The spooling gear is normally adjusting the wire on the drum to get optimal storage capacity and avoid damage to the wire. They are normally hydraulic driven but can also be electric. The spooling device is can be powered by the same hydraulic circuit as the main system, or by a separate circuit.
Damper unit
The damper unit reduces stiffness and introduces damping between the Traction Unit and the storage winch in order to minimize tension peaks.
Storage winch
Storage winches have a very high capacity for storing cable, wire or synthetic rope. As the main purposes is storing and transfer of cable, wire and rope the constant pulling capacity is normally between 1 - 5 tons.
Moving vessel profilers
Features
- CTD measurement while in seismic operation
- Free fall sensor, with on-line recording in complete depth range
- Self-contained unit
Almost every new seismic vessel launched in the world today has an ODIM system for swift, gentle handling of its streamer systems.
Accurate data collection is accomplished without the need to stop the vessel or employ a chase boat to perform TS (CTD) dips. Non-geological differences in collected data can be minimised at the acquisition stage.
Benefits
Our complete system deliveries include fully integrated control systems, providing manoeuvring monitoring and safety features. One provider secures easy interfacing for installation and service.
Fibre rope technology
With the use of our unique Rolls-Royce technology for handling fibre rope, we have eliminated water depth restrictions for taking seabed samples. The unique feature of our solution is that the power required and the safety factor in sampling are unaffected by water depth.
If we compare the use of fibre rope with steel wire, the power requirement will increase substantially and the safety factor decline because of the wire’s own weight. Since fibre rope is weightless in water, the power requirement and safety factor are depth-independent.
Fibre rope also lasts longer than steel wire if handled correctly. This makes our technology for handling fibre rope unique and highly recognised in the oceanography sector.
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