Trenching In Diverse Markets
Agenda Company Overview Helix OWF & Interconnector Potential Involvement and Contracting Trenching Overview Project Case Studies
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Helix Energy Solutions – Business Units •
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Well Ops •
1 x semi-sub Q4000
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1 x intervention drillship H534
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3 x monohull vessels •
MSV Seawell
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Well Enhancer
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Skandi Constructor – charter
Canyon Offshore •
55 WROV’s, 2 x ROV Drill’s, 5 x Trenchers
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5 x chartered vessels – ROV/construction services
Production Facilities •
Helix Producer 1 – FPU
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Independence Hub – Semi (20% production share)
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Marco Polo – TLP (50% production share)
HFRS – Helix Fast Response System c/w support services •
Q4000, HP1 FPU, Capping Stacks, ROV systems
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QHSE Accreditations Safety & Quality Our core business values support the health and safety of our personnel and respecting the environment. Canyon strives to provide for employee livelihood and customer need through the application of safety programs designed to protect the environment and safeguard employee health and physical well-being.
Canyon Offshore maintains global ISO 9001, ISO 14001 and ISO 18001. With >150 offshore personnel operating on a range of vessels supported by an onshore team of >50 we recently experienced 3 ½ years with no recordable incidents / injuries. 4
Interconnector , Export Cable & Offshore Wind Farm Experience BritNed - IC EWIP – IC NorBolt - IC Greater Gabbard Thornton Bank Sherringham Shoal London Array Meerwind Northwind Nord See Ost Borkum West 2 Dan Tysk Baltic 1 - E Baltic 2 - E Borkum Riffgund - E Dolwin 2 - E Butendiek – E Sandbanks - E 5
Project Life Cycle Where we should be involved!
Current engagement of installers and burial contractors
Cost Expenditure
Concept
Lessons Learnt
Influence
Engineering Procurement Install Commission
start
Project Timeline
completion 6
International Marine Contractors Association • •
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IMCA is the international trade association representing offshore, marine and underwater engineering companies It seeks to: • Strive for the highest possible standards with a balance of risk and cost in: health and safety; technology; quality and efficiency; environmental awareness and protection; n • Achieve and sustain self-regulation in the industry; • Ease the free movement of equipment and personnel globally; • Achieve equitable contracting regimes; • Provide the framework for training, certification, competence and recruitment to support and sustain the industry globally • Resolve industry issues; and promote co-operation across the industry. IMCA has two core activities in which all members participate: • Competence & Training includes a comprehensive framework devoted to promoting safety by defining and encouraging training and competence in key safety-related positions. • Safety, Environment & Legislation (SEL) includes monitoring national and international regulatory bodies, circulation of relevant information to members and advancement of industry positions where necessary IMCA has published substantial and comprehensive good practice guidance on marine operations based on its members’ experience in a range of related areas. More details on specific activities are set out on these factsheets. 7
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The nature of the OWF market - Potential
Market is >120GW, 8GW fully commissioned
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The nature of the market - Annual
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Interconnectors
The above shows what could be the extent of the Northern European Super Grid that will also be further developed into the Mediterranean. Predominately its cable manufacturers that are contracted under EPC type agreement, but with larger projects being split into lots. Current projects include Nemo, Cobra, NSN, Norbolt, Western Link, Caithness with cables such as Norned, Norbolt, Ewip and Britned already in operation. 11
Seabed Conditions
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Canyon’s Current Trenching Equipment Our fleet of purpose built trenchers are available to trench and backfill in water depths up to 2500m. Operating in tracked, free fly or pipe follow mode, along with unique jetting and backfill tooling, each system can be customised based on project soil conditions and desired trench results. Current fleet consists of 5 Trenchers i-Trencher – 1725 HP T1200 – 1200HP T750 - 750 HP T600 - 600 HP T1500 – 1500HP
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Post Trench Survey
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Digital Terrain Mapping
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Grand Canyon – Primary Trenching Solution Vessel Overview DP 3 , Ice Class Long term (5 year) charter from Volstad Purpose built trenching vessel Clean & Comfort Class Accommodation for 108 POB 250 MT crane 125m LOA ,beam 26m, deck space 1700 m2
Vessel Spread Jet Trencher T1200 Heavy Soils Trencher (itrencher) 2 times XLX 200HP WROV
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Grand Canyon – Deck Layout i-T & T1200
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Triton Supertrencher I (T-1200)
Weight in air: 30 000kgs vs 3001500kgs in water dependant on configuration Ability to bury large diameter pipes up to 36” Ability to cut deeper trenches at greater speeds Soil strength up to 125kpa in a single pass Expands on design principles used on the proven T750 Trencher
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T1200 - Tooling Deployment: •
Deployment system same design principle as T750.
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Improved clearance within chassis increases system deployment angle.
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Jetting swords can be individually deployed.
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Side load monitoring possible.
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Backwash Principle (Sands) Direction of travel
Sand consolidating as backfill Product
Fluidised sand
HP Cutting Nozzles
LP Backwash – 2 x 86mm nozzles maintaining sand in suspension Trench base 20
i-Trencher 1,725 HP in total, 500HP at the cutting chain Rated for 1,500 m Water Depth Weight: 80te in air, circa 40te in water Up to 20” flexible and rigid products Trench Depth to 2m in one pass Matches Plough Performance Heavy Soils and Rock Cutting Zero Bollard Pull
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Hard Soil Trenching - i-Trencher • i-Trencher is designed for hard soils; • Trenching technique is mechanical cutting and spoil removal by dredge pumps; • Backfill, if required, is by chain cutters excavating seabed soils to either side of the trench;
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T1500
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Bringing Past Experience to a Safer Future John Davies Business Development Manager Canyon Offshore Ltd http://www.helixesg.com/canyon/ Helix House, Kirkton Drive, Pitmedden Industrial Estate, Dyce, Aberdeen, AB21 0BG Tel: +44 (0)1224 351800 DDI: +44 (0) 1224 755015 Mob: +44 (0) 7971 223383 Fax: +44 (0)1224 351801 Email:
[email protected]
Thank You
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