New Presentation Layout 09-09-16 Linkedin
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Transcript of New Presentation Layout 09-09-16 Linkedin
SPT Offshore Technologies
SPT Offshore – Independent Contractor
• Founded in 1997 by VolkerWessels and N-Sea (former Noordhoek diving)
• More then 450 suction piles (pipelay startup-, mooring- & foundation piles) installed in both oil and gas sector as in renewable sector
• Since June 2016 SPT Offshore is an independent EPCI contractor, specialized in suction pile foundations and anchors
How Do Suction Piles Work?
Suction Pile Installation
• Lower suction pile to seabed
• Self-weight penetration
• Discharge of water, causes difference in water pressure inside and outside
• Driving force on the top-plate (10 tonne / m2 / bar)
• Pump can be removed after installation
• Animation
dischargeof water
side
fri
ctio
ntip
resistance
Why Suction Piles? – Compared to Monopiles
• Noise-free installation;• No risk of offshore installation operation being shut down• Saving costs on noise mitigation spread• Environmental friendly• BSH compliant
• Swift to install; only few hours compared to many hours of pile driving, reducing critical vessel time
• Easy to install; no hammer and pile handling spread required, only little offshore handling required, reducing costs and risks
• Foundations are easy to level by proportional control of the suction pumps; saving costs of levelling spread and separate TP lift
• Easy to fully decommission by reversing the suction process; environmental friendly and cost efficient solution
Suction Pile Suitability
Site investigation
• Site survey• CPT• Borehole• Laboratory tests
Suction pile suitability
• Water depth <10m• Hard ground/rock• Steep seabed
Soil data interpretation
• Seabed morphology• Stratigraphy• Design parameters
• Deep water• Clay or sand• Flat seabed
not suitable at all . . . . . . very well suitable n/a conditional feasible good
• Gravel • Layered soils
Suction Pile EPCI Contractor - Engineering
• E – Engineering• Concept studies and (pre)FEEDs• Detailed design of suction pile anchors• Detailed design of substructures and structural design of
topsides• Research and development
VM
H
Procurement and Construction
• PC – Procurement and Construction• Suction piles and substructures up to 2,500mT at VSF, The
Netherlands• Well-established network of pre-qualified fabrication yards,
ranging from Brasil, to Dubai, to Malaysia and Vietnam
(Transportation and) Installation
• I – Installation (including transportation)• Single piles and foundations from Company’s vessels; SPT
Offshore owns a pool of 20+ suction pump spreads for the installation of single suction piles and suction pile foundations
• SIPs and other suction founded platforms and structures using chartered barges and/or vessels
• Complete mooring line installation with OCVs and AHTs
Market Leader and Customers
• 20 years experience in suction pile technology
• Worldwide no. 1 in suction pile foundations and anchors (>400 installed)
• Specialist covering whole range from design, fabrication and installation
Projects and Offices