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AOG 2015
Modular Carousel Systems – Application, Innovation & Future Development
Australiasian Oil and Gas Conference 2015
Perth Convention Exhibition Centre
Perth, Australia
AOG 2015
Introduction
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The trend in subsea installation projects is “bigger” - larger and more complex
product, deeper water and longer lengths
Installation, replacement or recovery works at these depths requires specialist
equipment
In addition the drive to deeper waters for windfarms mean significant cable lengths
are required, with greater diameter
A typical multi-reel solution becomes inefficient for longer flexible installation based
on current designs.
The market has a requirement for a change in technology…..
[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Limitations
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Project complexity increases with
quantity of reels
Offshore connections and testing are
time consuming & increase risk
Product weight & volume limitations
Large connectors result in ineffective
reel space utilization
Constraints placed on vessel – crane
reach, track length, crew space,
Loaded Reel weight limited to 500Te
[email protected]
www.aquaticsubsea.com
AOG 2015
Carousel Installation - Limitations
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Carousels tend to be purpose built into a standalone vessel or basket-style with
functional limitations
Mobilisation of carousel includes significant relocation cost of vessel
Carousel vessels tend to be locked into long term contracts
With deeper waters in mind, carousels tend to be too costly for mid-length tiebacks
or those on the upper limit of multiple reel usage.
Vessel cannot be readily used for other field work before/after installation
[email protected]
www.aquaticsubsea.com
AOG 2015
Carousels – What Does the Market Want?
Portability or Modularity
• Less impact on the vessel and the ability to use a wider range of host vessels
Enhanced range of mobilisation ports
• The ability to handle the equipment and product at compact quaysides
• Options on the size and hence number of lifts to mobilise the machine
Optimised Product Handling & Storage
• A reel translated through 90 degrees
• The ability to spool under tension
Faster Mobilisation & Demobilisation
• Take the equipment to the vessel
• The ability to use a vessel of opportunity already in the work region
[email protected]
www.aquaticsubsea.com
AOG 2015
The Solution
Portability or Modularity
• Less
on the
vesseldesigned
and the ability
to use
a wider
of host
• Aimpact
modular
system,
to break
down
intorange
standard
40ftvessels
containers
andrange
shipped
anywhere worldwide
on commercial freight vessel
Enhanced
of mobilisation
ports
• ability
Spatially
optimized
to suit typical
field support
or anchor
handling vessels
• The
to handle
the equipment
and product
at compact
quaysides

• Options on the size and hence number of lifts to mobilise the machine
Optimised Product Handling & Storage
• A reel translated through 90 degrees
• The ability to spool under tension
Faster Mobilisation & Demobilisation
• Take the equipment to the vessel
• The ability to use a vessel of opportunity already in the work region
[email protected]
www.aquaticsubsea.com
AOG 2015
The Solution
Portability or Modularity
• Less impact on the vessel and the ability to use a wider range of host vessels
Enhanced range of mobilisation ports
• ability
Heaviest
singlethe
piece
lift of 20Te
• The
to handle
equipment
and maximum
product at compact quaysides
• Option
to build
up hence
assemblies
toofallow
formobilise
break-bulk
repositioning
• Options
on the
size and
number
lifts to
the machine
• Assembly
be within limitations of typical quayside strength
Optimised
Productoptimized
Handling to
& Storage
onshorethrough
craneage
• A reeland
translated
90 degrees
• The ability to spool under tension
Faster Mobilisation & Demobilisation
• Take the equipment to the vessel
• The ability to use a vessel of opportunity already in the work region


[email protected]
www.aquaticsubsea.com
AOG 2015
The Solution
Portability or Modularity
• Less impact on the vessel and the ability to use a wider range of host vessels
Enhanced range of mobilisation ports
• The ability to handle the equipment and product at compact quaysides
• Options on the size and hence number of lifts to mobilise the machine
Optimised Product Handling & Storage
carousel configuration
• A• reelDesigned
translatedaround
throughproven
90 degrees
• ability
Modular
support
equipment
• The
to spool
under
tension including level winder & tensioner
• Mobilisation
Spatially optimized
to balance product weight/volume capacity with vessel
Faster
& Demobilisation
limitsto the vessel
• Takestructural
the equipment
• ability
Tapered
hubatovessel
maintain
tight winding
under
self
weight
• The
to use
of opportunity
already
in the
work
region



[email protected]
www.aquaticsubsea.com
AOG 2015
The Solution
Portability or Modularity
• Less impact on the vessel and the ability to use a wider range of host vessels
Enhanced range of mobilisation ports
• The ability to handle the equipment and product at compact quaysides
• Options on the size and hence number of lifts to mobilise the machine
Optimised Product Handling & Storage
• A reel translated through 90 degrees
• The ability to spool under tension
Faster Mobilisation & Demobilisation
• Take
the equipment
to the around
vessel a region using standard sea freight methods
• Rapid
repositioning
• The
to use
of opportunity
already
in thevessels
work region
• ability
Designed
to abevessel
installed
on offshore
support
with 18m+ beam
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


[email protected]
www.aquaticsubsea.com
AOG 2015
[email protected]
www.aquaticsubsea.com
AOG 2015
System Flexibility
Adjustable False Roof:
4.0m – 6.0m
End Connection
Storage on Roof
Capacity for
Multiple Products
Adjustable Hub Diameter:
4.0m – 6.0m
[email protected]
www.aquaticsubsea.com
AOG 2015
Operational Evaluation (Product >20km)
Continuous Lay
Connection Downtime
Range of Suitable Vessels
Product Integrity Risk
Deck Space Requirement
Additional Offshore Resource
Vessel Multi-tasking (clear deck)
[email protected]
Multiple Reel
Fixed Carousel
Modular Carousel
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
Offshore
Onshore
Onshore
High
Low
High
Medium
Low
Low
Low
High
High
Reel Supply Vessel
None
None
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www.aquaticsubsea.com
AOG 2015
Relative Project Cost Evaluation (Product >20km)
Multiple Reel
Fixed Carousel
Modular Carousel
Up-Front Engineering
Low
High
High
Product Fabrication Cost
High
Low
Low
Product Relocation Cost
Low
High
High
Vessel & Equipment Mobilisation
Low
High - V.High
Medium
Transpooling / Deck Preparation
Low
High
Medium
Offshore Lay / Installation
High
High
Low
Impact of Schedule Slippage
Low
High - V.High
Low - Medium
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
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9.7km of 218mm umbilical to install
offshore Indonesia
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
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•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
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9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
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•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
Product arrives on 3 reels
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
•
•
•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
Product arrives on 3 reels
Quayside transpooling & midline
connections made and tested
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
•
•
•
•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
Product arrives on 3 reels
Quayside transpooling & midline
connections made and tested
Installation commences
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
•
•
•
•
•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
Product arrives on 3 reels
Quayside transpooling & midline
connections made and tested
Installation commences
Vessel & carousel demobilized
[email protected]
www.aquaticsubsea.com
AOG 2015
Modular Carousel - Application
•
•
9.7km of 218mm umbilical to install
offshore Indonesia
Vessel of opportunity identified in region
Carousel mobilized & seafastened
Product arrives on 3 reels
Quayside transpooling & midline
connections made and tested
Installation commences
Vessel & carousel demobilized
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CAN THE SAME BE DONE WITH REELS ?
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[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Size & Specification
• Currently limited to 11.4m (plans for 12.3m)
[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Size & Specification
• Currently limited to 11.4m (plans for 12.3m)
• Weight of reel increases significantly with
size due to shape and need for additional
structural support
• Reels are viewed as a consumable item so
minimal scope for technical development
[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Size & Specification
• Currently limited to 11.4m (plans for 12.3m)
• Weight of reel increases significantly with
size due to shape and need for additional
structural support
• Reels are viewed as a consumable item so
minimal scope for technical development
• Need to increase to 14-16m (700Te+
capacity) to fulfil deepwater demand
[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Size & Specification
• Currently limited to 11.4m (plans for 12.3m)
• Weight of reel increases significantly with
size due to shape and need for additional
structural support
• Reels are viewed as a consumable item so
minimal scope for technical development
• Need to increase to 14-16m (700Te+
capacity) to fulfil deepwater demand
• Increased size can introduce vessel
instability
[email protected]
Reel Diameter
(m)
Wind
Force (kgf)
Factor (%)
8.6m
3,680
100%
9.8m
4,780
130%
11.4m
6,475
176%
12.0m
7,170
195%
14.0m
9,750
265%
16.0m
12,740
346%
Lateral Wind Force based on 6 reel system and Wind
Speed of 25knots
www.aquaticsubsea.com
AOG 2015
Reel Capacity ‐ 10in x 13.5in Pipe with 3.5m Reel Partition
1,800.00
4,500
1,600.00
4,000
Carousel: 1,500Te
1,400.00
3,500
1,200.00
3,000
1,000.00
2,500
800.00
2,000
600.00
1,500
400.00
1,000
200.00
500
0
‐
8
9
10
Weight (Empty)
[email protected]
Product Length (m)
Weight (Metric Tonnes)
5,000
2,000.00
Multiple
Reel Installation
– Areas of Development
Carousel: 4,891m
11
12
13
14
Reel Diameter (metres)
Weight (Flooded)
15
16
17
Product Length
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Drive Size & Specification
• Limited by common deck capacity of 10Te/m2
• Reel drive footprint must increase to distribute
reel load into deck resulting in wider equipment
• Formal operational guidelines will need to be
imposed
• Must remain modular, road transportable and
within container limits
• Difficulties in maintaining commercial edge
over carousel systems
[email protected]
www.aquaticsubsea.com
AOG 2015
Multiple Reel Installation – Areas of Development
Reel Drive Size & Specification
• Limited by common deck capacity of 10Te/m2
• Reel drive footprint must increase to distribute
reel load into deck resulting in wider equipment
• Formal operational guidelines will need to be
imposed
• Must remain modular, road transportable and
within container limits
• Difficulties in maintaining commercial edge
over carousel systems
[email protected]
www.aquaticsubsea.com
AOG 2015
In Summary
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Customers have expressed the need for increased capacity for product for a wide
range of vessel options which could be easily mobilised
A modular carousel remains to be one of the most competent, versatile and cost
effective means of installing long flexible products
Developments are ongoing to make the mobilisation process of a modular carousel
more efficient
There is scope for increasing the size of offshore reels and drive systems, at the
expense of deck footprint and vessel stability limits
Next steps
– Commercial analysis: Cost of product/connectors vs. Installation Method
– Fabrication feasibility: Can reels be made cost effectively using alternative
materials?
[email protected]
www.aquaticsubsea.com
THANK YOU
Aquatic Engineering & Construction Ltd
900 Threadneedle
Suite 300
Houston TX 77079
Tel: +1 832 399 5000
Fax: +1 832 399 5001
Aquatic Asia Pacific Pte Ltd
Loyang Offshore Supply Base
25 Loyang Crescent
Mailbox No. 5046
Tops Avenue 1
Block 103, #04-03
Singapore
508988
Tel: +65 6681 5633
www.aquaticsubsea.com
Tern Place House
Tern Place, Bridge of Don
Aberdeen, AB23 8JX
Tel: +44 1224 452300
Fax: +44 1224 452349
South View Place
Peterhead
AB42 3GU
Tel: +44 1779 475035
Fax: +44 1779 483820