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Applied – Offshore - Engineering
Colin Pearce [email protected] February 2015
HOULDER LIMITEDSubsea Opportunities in Renewable Energy
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Who are weHoulder is an independent, innovative, applied engineering company with a global range. We respond to client requirements for the design, build, and enhancement of marine assets.
How we workFrom concept to completion, our fully thought-through engineering solutions are founded on experience, intellect and practical know-how.We offer a value-added service, built on our deep understanding of what works in the marine environment.
What we offerHoulder will provide a responsive, cost-effective engineering, construction and project management service for your marine asset.
HOULDER LTD.
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Copyright Houlder Ltd27/01/2015
OUR MARKETS
OUR OPERATIONSWorldwide, 4 Business Streams operating out of 5 locations, 200 staff:
OUR CLIENTS
Oil and Gas Offshore Renewables Commercial & Marine Defence
HSEQ
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HEALTH & SAFETYWorkplaceSite/vesselSafety in DesignStatistics
QUALITYISO 9001:2008 accreditationQA and QC Investing in HUB and PDMManagement, Design, FabricationRegistered FPAL
ENVIRONMENTDesign considerationsInstallation considerationsISO 2015 14001: applying for
SAFETY IS OUR #1 PRIORITY IN EVERYTHING WE DO.
.Concept
EngineeringSurvey &
DesignFabricate &
InstallOperate & Maintain Remove
Handling Systems
Hull & Structure
Tanks & Pipes
Cranes & Davits
Moorings
Topsides Equipment
VDL Upgrades/ Deck Extensions/ Hull mods.
Crane Pedestals/ Design of Davits
Skidding & Overboarding Systems/ Carousels
System Modifications/ replacements
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System Upgrades/ vessel interface
Integration of 3rd party equipment
Structural Integrity Manage-
ment
Fabric Maint’ce
OPE & MEOperations Support Services
Removal Vessel
Selection
Option-eering
Decon-structionIn-service
support
Integrity plans
Copyright Houlder Ltd27/01/2015
Houlder designed and supplied a pair of gripper arms (150t lateral force) to position offshore wind turbine piles during installation.• 300t of complex fabricated steel• Bespoke hydraulics >2m cylinders• Specialised Control System / Software• Highly engineered mechanical componentsCarefully selected Supply Chain:• Fabricators• Marine Paint Specialists• Fluid Power Suppliers• Site Services• Electrical Installers• Controls System Integrators
Monopile Installation Equipment
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1500 Te Modular Carousel
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Offshore Renewables -Subsea Opportunities / Challenges
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Offshore Wind
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• Geotechnical investigations• Surveys
• Seismic• Sonar• Video• Magnetic• UXB
• Site preparation• Scour protection
• Anchor & mooring design (floating)
• Installation of subsea elements
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Offshore Wind- Interconnection & Power Export
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• Cables• Cable connectors• Cable protection systems
• Bend Stiffeners• Bend Restrictors• Seals
• Cable installation• Trenching• Rock cutting• Jetting• J/I tube pull in• Monitoring /ROV / divers• Quadrants
8 – 80 rule8% of capex: 80% Insurance claims
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TidalWhere it starts getting interesting
All of offshore wind challenges +
• Water + Electricity = problems• Seabed
• Soft stuff typically gone. Rock. Sometimes fractured.• Foundation design
• GBA (handling)• Rock socket (ROV installed)• Monopile stump (surface or ROV)
• Installation (foundation then turbine)• Installing in ‘a hurricane’
• Generator in water• Keep it protected/dry
• Power conditioning• Interconnection
• Sub sea ‘pod’?• Surface platform?
• Cable protection – HOW?
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Wave powerIf tidal is too easy…
Most of tidal’s challenges +
• No common theme/approach• Dynamic range of operation
• Design for median / high / low / swell / chaotic / nearshore / deepwaterwaves
• Surface obstruction• Foundation design
• No standard• Often in tension• Hugely varying loads
• Installation (foundation ->generator)• Installing on ‘rollercoaster’
• Distance from shore/water depth• Cable/power runs• Installation again
• Storm survival mode
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COMMON REQUIREMENTS• Cables Cables Cables – often new and innovative in design• Cable protection systems
• Exiting device• Intra devices
• Cable connectors & ancilliaries• HV subsea connectors – low cost, easily used/replaced
• Cable installation – intra-device
• Foundations, moorings & scour protection• Seals – water ingress protection & monitoring systems• Bearings• Motors, winches• Generators, power conditioning • Power collection hub, transformers & export• Subsea intervention systems – ROVs /divers
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INSPECTION, REPAIR & MAINTENANCE
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• Highly capable ROV’s• High current capability, quick to deploy• Tracked for sea bed ops?• Preferably flexible for multi-role interventions• Highly trained operatives
• Vessels capable of maintaining solid platform in adverse conditions
• ‘Kit’ designed with remote conditioning monitoring, control & selected redundancy
• Cohesive IRM strategies• Retrieval strategies
• Heavy lift / flotation / piecemeal
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•SPS Planning•Written scheme of examination/SIMP
•Life Extension planning
• SPS Coordination• NDT Inspections• Mods& Upgrades• Deadweight
Survey/Inclining Test• Emergency support
• Analyses of Strength, fatigue, redundancy • Airgap, Stability &
Hydrodynamics• Structural Risk
Assessments
• Survey reports• Modification as-builts• Incident outcomes• Inspection reports• Model of current
condition
Asset Databank
Assess-ment
Integrity Strategy
Work Program
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Through-Life Asset SupportAsset Integrity Management (AIM)
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Is that it?
OTEC
Energy Island
Reverse Osmosis
Sub Sea Energy storage
Wind powered ‘tidal’ turbines with on board NH3 or Alkane production
A combination of any other techs
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For further information on the contents of this presentation, please contact:
Colin Pearce, Business [email protected]
www.houlderltd.com
+44 1224 702200
Copyright Houlder Ltd
CONTACT DETAILS
27/01/2015
ABERDEENSuite E3 Northpoint,Aberdeen Science and Energy Park,Bridge of Don, Aberdeen AB23 8HZ, UKTelephone +44 (0)1224 702200
