Post on 15-Mar-2018
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A SALVOR’S APPROACH TO DECOMMISSIONING
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ARDENTSAFE AND TRUSTED PARTNER
Safety Record0 Loss Time Incidents (LTIs) since May 1st, 2015
Quality Management System is ISO 9001: 2015 certified
Certifications and Association Memberships
FPAL Supplier Number 10053937
Ownership structure
ARDENTOffshore Decommissioning
COSTA CONCORDIA WRECK REMOVALREFLOATING A BEHEMOTH• Italy 2012 – 2016• Depth 41m, gross tonnage 114,147 ton• Parbuckling, refloating and removal of the stranded
Costa Concordia Wreck in one piece• 530 people in 7 teams dedicated to different aspects• 130 Divers working 24/7, conduction over 18,000
dives• Current Contract value c. $1B
COSTA CONCORDIABY THE NUMBERS• 40,000 Man hours of
engineering• 530 People working on
site• 55 Certified welders• 130 Certified divers• 15,000 Individual dives logged
• 27,000 Hours of ROV footage
• 19,978 Tons of grout cement• 33,020 Tons of steel
fabricated• 1,000,000 Point FEM
CROSS SECTOR TRANSFERFROM SALVAGE TO DECOM• Extensive experience globally• Challenges Overcome:
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• Environmental sensitivity• Multiple stakeholder
management• Damaged or unknown condition• Challenging logistics chains• Safe disposal
• Dynamic planning and scheduling
F I N D I N G T H E S O L U T I O NTHE PROCESS
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SOLUTION: ONEBOUYANCY IN LEGS – VERTICAL REFLOAT
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SOLUTION TWO:TOPPLING AND LIFTING
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SOLUTION THREE:FLOTATION
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LIFTING WITH BUOYANCYMODULAR LIFTING CONCEPT
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• Modular system; Usable for most Jackets
• Closed A-Shape Design
• Divided in several compartment / tanks
• Clamped onto straight vertical side of the
Jacket
• Jacket Structure is able to bear the imposed
forces and moments
• Sufficient stability due to adequate waterplane
area at all steps of operation
• System is able to turn the Jacket horizontally
(overall 360˚ possible)
CAISSON DESIGNKEY FEATURES
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