SPT Offshore Technologies is an independent contractor specializing in suction pile foundations and anchors. They have installed over 450 suction piles since 1997 for oil and gas and renewable projects. Suction piles are installed by lowering them to the seabed and pumping out water to create suction, providing a noise-free and environmentally friendly installation method. SPT Offshore provides engineering, procurement, construction, transportation and installation services for suction pile projects worldwide and has over 20 years of experience in the technology.

2. SPT Offshore Technologies

3. 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

4. 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
discharge
of water

5. 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

6. 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

7. 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
V
M
H

8. 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

9. (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

10. 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

11. Projects and Offices