DECOMMISSIONING – EXPERIENCE FROM THE OIL & GAS … · 6/14/2018 · DECOMMISSIONING –...
Transcript of DECOMMISSIONING – EXPERIENCE FROM THE OIL & GAS … · 6/14/2018 · DECOMMISSIONING –...
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DECOMMISSIONING – EXPERIENCE FROM THE OIL & GAS INDUSTRY
BOUDEWIJN VERSLUIJS – COMMERCIAL MANAGER DECOMMISSIONING
WINDDAYS - ROTTERDAM
14 JUNE 2018
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I AM NOT AN OFFSHORE WIND EXPERT…
YOU ARE!
DISCLAIMER
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DECOMMISSIONING
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DECOMMISSIONING
Fixed platforms(topsides and jackets)
Subsea infrastructure, including pipelines, risers, spools & wellhead frames
Floating(FPSO’s, turret buoys, mid water arches,
flowlines, etc.)
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DECOMMISSIONING
Engineering, Preparation, Removal and Disposal (EPRD) Contractor
Focus on safety and reduction of environmental impact
Highly skilled professionals - wide range of disciplines In-house expertise – Engineering Disciplines
− Environmental and geotechnical− Marine and structural engineering− Project management and procurement− Subcontracting and partnering
Floating and subsea assets Cost-effective solutions
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DECOMMISSIONINGTYPICAL FLEET
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DECOMMISSIONINGTYPICAL TOOLS
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Engineering, preparation, removal & disposal Total 19 redundant offshore production
platforms Works include:
− Preparation works on relatively small working areas
− Management simultaneous operations (SIMOPS) − Removal larger platforms in multiple lifts− Removal smaller satellites in single lift− Transport to designated dismantling & disposal
yard
DECOMMISSIONINGCURRENT PROJECTS
VIKING & VULCAN AND VIKING BRAVO DECOMMISSIONING, SOUTHERN NORTH SEA, UK
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DECOMMISSIONINGCURRENT PROJECTS
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Engineering, preparation, removal (& disposal) Total 3 redundant offshore production
platforms Works include:
− Project Management & Engineering− Preparation works, including separation of
topside modules− Design of grillage & seafastening for transport all
topside modules and jackets in 1 single transport− Transport to designated dismantling & disposal
yard
DECOMMISSIONINGCURRENT PROJECTS
L10B, L10C & L10G DECOMMISSIONING, SOUTHERN NORTH SEA, THE NETHERLANDS
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Perenco – Thames 49/28A, SNS UK, 2016-2017Removal 3 bridge linked platforms incl engineering, preperationcutting, airlifting and onshore disposal
Shell/NAM – Leman BH, SNS UK, 2017Removal of Topside and Jacket incl engineering cutting, airlifting and onshore disposal
Perenco – Welland, SNS UK, 2015Removal of three subsea templates, incl engineering and preparatory works
Wintershall - Q8-A & B, SNS NL, 2012Platform removal, incl survey, cutting, lifting, transport / de-installation and onshore disposal of two jackets & topsides
NAM / SHELL - L13-FH, SNS NL, 2011Subsea template removal, incl engineering and preparatory works
Wintershall - P14A, SNS NL, 2008Platform removal, incl survey, cutting, lifting, transport / de-installation & onshore disposal of jacket & topside
Wintershall – K10-V, SNS NL, 2004Removal of jacket and topside, incl engineering and preparatory works
DECOMMISSIONINGPREVIOUS PROJECTS
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OFFSHORE WIND DECOMMISSIONING PROJECTS
Yttre Stengrund, Sweden – 5 WTGs
Vindeby, Denmark – 11 WTGs
Utgrunden, Sweden – 7 WTGs
Hywind, Norway – 1 WTG (postponed)
What’s next?
− Larger scale projects like Horns Rev, Middelgrunden?
SMALL SCALE TEST PROJECTS
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SIMILARITIES O&G DECOMMISSIONING & OFW DECOMMISSIONING - JACKETS
Q8A/B DECOMMISSIONING - 2012 ABERDEEN OWF INSTALLATION - 2018
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SIMILARITIES O&G DECOMMISSIONING & OFW DECOMMISSIONING - TOPSIDES
SHERINGHAM SHOAL OSS INSTALLATION - 2010LEMAN BH DECOMMISSIONING - 2017
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SIMILARITIES O&G DECOMMISSIONING & OFW DECOMMISSIONING - MONOPILES
VARG A DECOMMISSIONING STUDY/TENDER - 2017WEST OF DUDDON SANDS INSTALLATION - 2013
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SIMILARITIES O&G DECOMMISSIONING & OFW DECOMMISSIONING - HVDC
REVERSED FLOATOVER HVDC – 20XX??SYLWIN FLOATOVER INSTALLATION - 2014
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ONSHORE RECYCLING AND DISPOSAL
THANK YOU JOHAN TOP!
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LESSONS LEARNED
Large execution window is beneficial (Availability of assets vs execution window have an impact on price)
Drawings/information provided may not represent actual situation (e.g. weights, marine growth, grout, etc.)
Structural integrity / suitability lifting operations
Soil plugs / grout in piles
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DECOMMISSIONINGNEW HORIZONS
THANK YOU / QUESTIONS?