aha mops konstruksjonsdagen 2018 - ptil
Post on 22-Feb-2022
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Snefrid Sør
Luva
HaklangPolarled
Gas export
Aasta Hansteen spar FPSO
Licence Partners:
Equinor 51% (Operator)
Wintershall 24%
OMV 15%
ConocoPhillips 10%
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➢ Transfer operation at Ølen (Westcon) by Dockwise
• Topside transported on White Marlin on four (4) MSF supports (LSF)
• Topside support on two (2) Dockwise S-class HTV as “catamaran” condition
• Four (DFSU) supports on each S-class
➢ Grillage and sea-fastening on S-class
• Primary grillage and DFSU (8 off) pre-installed on S-class before transfer operation
• DLS (“dynamic load supports”) (8 off) connected at Ølen after Topside transfer to S-class
➢ Topside transport on S-class Ølen (dual barge)
• Topside “float-over and mating” between mooring line 4 and 5
• Simulation performed at “MARIN” in Wageningen (4 sessions)
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➢ Final guiding and first load transfer (2x1500T) by use of TMU
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4/428/5 13/11
H-link
Suction anchor
Ballgrab
Polyester
Chain
Water
depth
Fish farmsPlatform structures
Power cables, 140m
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Coastal tow
• Weather window operation (3days)
• Full depth survey of route
Unrestricted offshore tow
• 10-yr design storm (Hs=10m)
• Allow free drifting
• Water depth >600m
Inshore tow
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