the next step to more efficient and lean irm vessels?...the next step to more efficient and lean irm...
TRANSCRIPT
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The next step to more efficient and lean IRM vessels?
Richard Myhre
CEO and co-founder of AXTech AS
Molde/RMY/25.11.2016
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Agenda
• Evolution, vessels
• Module sizes
• Cost Factors
• Module Handling
• Vessel Stabilization
• Future opportunities
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• System capacity
– Growing in size: 20, 35, 60, 70t.. And now 420t!
• Open sea operating conditions
– Increasing: HS 2 - 4 - 5,5 (latest)
• Vessels
– More and more specialized
– Multiple moon-pools
– Growing in size, Substantially larger >160m
• Cost
– Increasing – peaked at 2014/15
Evolution of IMR module handling (Last 10 years)
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• More than 3000 modules
• Weights from <1 to 380t
• Modern MHS capacity: up to 70t
• Vast majority of modules: < 20t
– Only a very few above 60t
Subsea modules in the North Sea
Åsgard control power distribution
units module 8,5x5x4,9m
Gullfaks wet gas compressor
module (64t, 8,5x5x3m)
Typical small module
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• Factors for consideration:
– Vessels
– Lifting equipment (type, properties)
– Mobilization time
– Lifting capacity
– Operating sea state
– Crew
– ++
Large IMR vessels are still necessary to cover all current modules..
..but what if the smaller modules could be handled by smaller vessels with less crew, rented equipment and a very short mobilization time…?
…and if the vessel could be taken from the currently inactive fleet?
IMR operation cost drivers
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• New “light” module handling concept
• Quick mobilization and vessel independent
• No modification to the vessel
• Handle standard cargorails
• Allows for both Overside and moonpool operation
• Will cover well above 90% of all subsea modules in the North Sea – 25t capacity
Light Module Handling System - LMHS
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LMHS animation
Video can be found at AXTech’s youtube channel and at www.axtech.no
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• Same unit for overside and moonpool operation
• Fit most moonpools
• Extended cursor guide frame during moonpool operation
Moonpool operation
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Inte
gra
ted H
PU
and
co
ntr
ol syste
m
• Fully integrated HPU and control system
• Mobilization within 48 hours
• Barge, truck or 40" container transport
• Rental, lease or purchase business model
• Available now..
Versatile and flexible
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• IMR vessel size and complexity growing over years
– Functionality, Capacity and Operating Sea State
• Enhanced stability can also enable the use of smaller vessels
– Reduction of vessel Roll and Pitch
• Enables the potential for variable buoyancy systems on offshore vessels
– Potential for use of smaller vessels at higher operational sea state
– Optimize vessel draft and ensure an efficient anti-heeling system
– Incorporate equipment properties and operational requirement into a central buoyance management system.
– In sum: Do more, with smaller vessels at higher sea states!
IMR Vessel size and stability
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MRPC – One option:
• Variable vessel buoyancy system
• Open ballast tanks to sea
• Air compressors will regulate seawater volume (also in vacuum)
• No need for fluid transfer between tanks
• Could potentially be linked with AHC lifting equipment – vessel motion management system
• Redundant system
• Highly energy effective.
• Improve stability with up to 80%
• Effective in all weather conditions
• Certified and approved by flag state and class.
MRPC Active Stabilization System
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MRPC Vessel animation
Video can be found at MRPC’s youtube channel and at www.axtech.no
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MRPC towing tank
Video can be found at MRPC’s youtube channel and at www.axtech.no
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• Large and specialized IMR vessels are still necessary, but
• Increased focus on cost makes room for new ideas and concepts
• Compact systems and efficient vessels for smaller modules
• Technology demand challenges the industry for:
– New concepts for safer material handling between vessel and seabed
– Increased demand for more cost efficient and safe solutions
– More advanced technology utilized for optimized vessel and equipment performance.
Q: Are vessel designers or shipyards the only ones to determine vessel performance?
Summary
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Thank you for your attention
Want to know more….?
Visit us at www.axtech.no and www.mrpc.no
and of course at
Richard Myhre
+47 91190203