Next generation WTG foundation and WTG installation. WindDays Rotterdam, 14 June 2018 Arnoud Bosch Engineering Director

Transcription

1 Next generation WTG foundation and WTG installation WindDays Rotterdam, 14 June 2018 Arnoud Bosch Engineering Director 18 June 2018

2 Subsea 7 Business Units Seaway Heavy Lifting Siem Offshore Contractors Renewables and Heavy Lifting: We are experienced in the installation of offshore wind farm foundations and substations, heavy lifting for oil and gas structures and decommissioning. Subsea 7 SURF and conventional: We are a global market leader in the Subsea Umbilicals, Risers and Flowlines (SURF) sector. Most SURF projects are contracted on a fixed-price basis and involve Engineering, Procurement, Installation and Commissioning (EPIC) services. i-tech Services Life of Field: For more than 35 years we have provided clients with inspection, maintenance and repair (IMR) services, integrity management and remote intervention 10-Aug-17

3 Subsea 7 Renewables and Heavy Lifting Vessels Oleg Strashnov (2011) 5,000 Tonne DP Crane Vessel Siem Aimery (2016) DP Cable Lay and Trenching vessel Stanislav Yudin (1985) 2,500 Tonne Moored Crane Vessel Siem Moxie (2014) DP installation & commissioning support vessel

4 Seaway Heavy Lifting EMPLOYEES Onshore / offshore: 550 HEADQUARTER The Netherlands (Zoetermeer) HOME PORT SHL facilities (Europoort, Rotterdam) OFFICES Germany (Hamburg) United Kingdom (Glasgow, Aberdeen) France (Paris) USA (Houston) Cyprus Taiwan 4

5 Beatrice EPCI Scope Seaway Heavy Lifting (EPCI) 84 Foundations 91Array Cables T&I of 2 Substations Siemens Transmission EPC of 2 Offshore Substations EPCI of Export cable Siemens Wind Power EPCI of 84no WTG Key interfaces Engineering Atkins Fabrication Bladt (Jackets) Smulders (Jackets) Bifab (Jackets) EEW (Piles) SIF (Piles) Cables SIEM Transport & Installation Seaway Heavy Lifting 5

6 Beatrice EPCI Pile Installation Frame (PIF) - SHL in-house designed PIF - Successfully installed 344 piles within tolerance - Extendable mud mats to level PIF - Retractable shims in sleeve to allow hammer sleeve in PIF sleeve 6

7 Beatrice EPCI Riggerless installation of Beatrice jackets 7

8 Borkum West II Scope Seaway Heavy Lifting (EPCI) 32 Foundations Scour protection Senvion EPCI of 32no WTG Key interfaces Engineering JBO (steel parts) Recase (e-module) Fabrication SIF Smulders Scour Protection Tideway Transport & Installation Seaway Heavy Lifting 8

9 Borkum West II MP-TP seal - Bolted connection MP-TP - No mini skirt with grout for corrosion protection interface MP-TP - Inflatable seal to ensure air and water tight interface 9

10 Monopile installation 10

11 MP installation: Adopt Adapt - Improve Greater Gabbard Simple outrigger with fenders - Manually controlled cylinders to improve verticality of MP Dudgeon Motion compensated cylinders Borkum II Outrigger 7m elevated to improve stability for larger MP - Noise mitigation screen integrated in outrigger 18 June

12 Next step: MP installation on DP Critical stages during MP installation on Dynamic Positioning: 1. At low penetration level, the pile may lean on the vessel, so the DP system must be capable of supporting the pile 2. At intermediate penetration, the DP system must be capable of supplying force to correct pile verticality within specified tolerance. 3. At stable/full penetration, the pile acts as a mooring pile. Does a moored connection destabilize the DP control system? 18/06/2018

13 Next step: MP installation on DP - Outrigger control model (MATLAB-Simulink) has been completed by Bosch Rexroth - DP simulation model has been developed with RH Marine - Coupled system of outrigger control model and DP simulation model Coupled simulation Uncoupled simulation Conclusion: - A coupled outrigger-dp system is required to ensure safe MP installation on DP - The simulation results have been verified with the data we have measured during Dudgeon MP installation. This has shown very similar results justifying the accuracy of the model. 13

14 MP on DP installation using Monopile Installation Frame Title Presentation 18 June

15 MP on DP installation using Monopile Installation Frame - Basic design MIF finished - Proven concept Similar concept as inhouse SHL designed Pile Installation Frame (PIF) as used on Beatrice project - Integrated noise mitigation system feasible 15

16 Future WTG s lifting height challenge Source: Vuyk Engineering

17 Wind Turbine Generator installation from floating vessels - SHL leading the Carbon Trust study on floating installation of WTG s 1 - Different concepts being studied - Adjustments to WTG tower / nacelle / blades required to facilitate installation - Methods for separate installation of blades being studied

18 Slip joint connection MP-TP-WTG improving floating installation

19 19 18/06/2018