BOSKALIS OFFSHORE Check under Guide settings the button Display - - PowerPoint PPT Presentation

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BOSKALIS OFFSHORE Check under Guide settings the button Display - - PowerPoint PPT Presentation

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BOSKALIS OFFSHORE Check under Guide settings the button Display drawing DECOMMISSIONING May 2015 \ 1 BOSKALIS FOCUS Construction & maintenance Heavy marine transport and Harbor towage of ports & waterways, land

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Check under Guide settings → the button Display drawing

DECOMMISSIONING

May 2015

BOSKALIS OFFSHORE

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BOSKALIS FOCUS

  • Construction & maintenance
  • f ports & waterways, land

reclamation and coastal defense

  • Civil construction, global

environmental development

  • Heavy marine transport and

logistical management services

  • Offshore transport &

installation, decommissioning & IRM

  • Subsea infrastructure
  • Harbor towage
  • Terminal services
  • Salvage operations
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BOSKALIS OFFSHORE – FOCUS

SUBSEA CONTRACTING SUBSEA SERVICES MARINE SERVICES MARINE CONTRACTING

  • ‚

Landfall solutions

  • ‚

Trenching and backfilling

  • ‚

Rock installation

  • ‚

Cable installation

  • Air/saturation diving and

ROV services

  • Inspection, repair and

maintenance of subsea infrastructure

  • ‚

Subsea construction and removal services

  • Transport and

installation of fixed and floating offshore structures

  • Decommissioning of
  • ffshore platforms
  • Charter of anchor

handling tugs, barges and sheerlegs

  • Complementary

maritime project management and engineering services to the chartering

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Decommissioning

BOSKALIS OFFSHORE - PROPOSITION

Ready For Start Up Final Investment Decision Activities Concept design (pre F.E.E.D.) Front End Engineering & Design (F.E.E.D.) Test & handover

▪ Define concept ▪ Tender FEED

packages

▪ Design of

production facilities

▪ Tender EPC

package

▪ Detailed

(structural) engineering

▪ Procurement ▪ Fabrication ▪ Fixed & floating

structures

▪ Subsea

infrastructure

▪ Testing of

installation

▪ Production of

gas/liquids 3 months – 2 years 1 - 3 years 2 - 3 years ~3 months ~6 months 15 - 30 years Engineering Procurement Construction (E.P.C.) Transport & installation (T&I) Production

▪ Inspection ▪ Repair ▪ Maintenance ▪ Removal of platforms

and subsea structures

▪ Offshore/Onshore

disposal

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3 x Dive Support Vessel

(AIR, SAT systems installed) Constructor (SAT dive) SMIT komodo, EDT Protea (AIR dive)

BOSKALIS OFFSHORE – KEY ASSETS

2 x Multi Purpose / cable lay vessel

Ndurance (Cable lay vessel) Ndeavor (Multi purpose vessel)

23 x Heavy Transport Vessels

(DWT up to 117.000T) Vanguard , Blue/White/Black Marlin, Mighty Servant 1&3, Transshelf, 6 T-, 4 F- & 4 S-class vessels, Super Servant 3 and HSY 278

2 x Rock dump vessels

Rockpiper (26.000T DWT) Seahorse (18.000T DWT)

6 x Sheerlegs

(lifting capacity up to 5000T) Taklift 4, Taklift 6 and Taklift 7 Asian Hercules, Asian Hercules II and Asian Hercules III

13 x Barges and FSP’s

(DWT up to 25.000T) Giants (25.000T) SMIT barges (4500T – 14.000T) Floating super pallets (5000T)

22 x Ocean towage / AH tugs

(AHT 28T – 205T BP) Some anchor handling tugs: Union Princess, SMIT Angola, SMIT Sentosa Ocean towage tugs: Fairmount Sherpa, Glacier, Summit, Expedition, Alpine,

5 x Offshore support Vessels

(DP2, ROV support, AH) Union Manta, SMIT Kamara, SMIT Nicobar, Union Sovereign, SMIT Orca

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P14A PLATFORM REMOVAL

  • Client: Wintershall
  • Period: 2008
  • Location: Southern North Sea, NLCS
  • Scope of Work:

− Survey, Cutting, Lifting, Transport / De-installation and onshore disposal of jacket & topside

  • Equipment:

− Sheerleg Taklif 4 − SMIT Tugs

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MAERSK IRM CAMPAIGN

  • Client: Maersk Oil
  • Period: 2011
  • Location: Danish section, North Sea
  • Scope:

− Removal of Boatlandings, mooring stations & skim pile; Installation of reinforcement clamps; splashzone works − air diving, ROV services, daugther diving craft, diamond wire cutting, rope access, project management & engineering

  • Equipment:

− EDT Protea (AIR dive vessel) − SMIT Stour daugther diving Craft − Diamond Wire Cutting Machines

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CONTROL BUOY REMOVAL

  • Client: Maersk Oil Denmark
  • Period: 2011
  • Location: Danish sector, North Sea
  • Scope:

− Disconnecting and recovery of Subsea infrastructure; Recovery of Buoy and tow to Port − W-ROV services, Air & SAT Diving, Anchor Handling Duties

  • Equipment:

− Constructor (AIR/SAT Diving) − Anchor Handling Tug

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Q8A/B PLATFORM REMOVAL

  • Client: Wintershall
  • Period: 2012
  • Location: Southern North Sea, NLCS
  • Scope of Work:

− Survey, Cutting, Lifting, Transport / De-installation and onshore disposal of 2 jackets & topsides on full LS basis incl. weather risk

  • Equipment:

− Sheerleg Taklif 4 and 7 − SMIT Tugs and Barges

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Q8A/B PLATFORM REMOVAL

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CAMELOT DECOMMISSIONING

  • Client: Helix UK
  • Period: 2012
  • Location: UK sector, Southern North

Sea

  • Scope:

− Disconnecting and recovery of Subsea infrastructure; Cutting and recovery of flow lines and mattresses − W-ROV services, Air Diving, use of cutting tool and grabber

  • Equipment:

− Protea (AIR Diving) − WROV

CAMELOT SUBSEA DECOMMISSIONING

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TYPICAL SCOPE OF WORK

  • MANAGEMENT, ENGINEERING & WORK PREPARATION

− MWS approvals − Risk- & environmental impact assessments − Workability assessments & motion analyses

  • PREPARATORY WORKS

− Surveys & inspections − Installation of lifting eyes, structural steel and cutting

  • PREPARATORY WORKS (SUBSEA)

− Subsea inspections − Removal and recovery of flowlines, spool pieces, jumpers, j-tubes, umbilicals and risers − Removal and recovery of concrete and frond -mattresses − Cutting, dredging, excavation and seabed rectification

  • HEAVY LIFT OPERATIONS & TRANSPORTATION
  • ONSHORE DISPOSAL (managing subcontractor)
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LESSONS LEARNED

COMMERCIAL

  • Large execution window is beneficial

(Availability of assets vs execution window have an impact on price)

  • Ownership of the offshore assets, possible

JV’s

  • Liabilities, risk distribution and division of

responsibilities to be clarified in early stage

  • Variations and management of change

(allow contractor time and freedom to deviate in a controlled manner)

  • Purchasing & contracting strategy

(traditional approach or alliance)

  • Division in Lots ?

OPERATIONAL

  • Drawings provided may not represent actual

situation (e.g. weights, marine growth, etc.)

  • Unexpected situations to be dealt with (e.g.

scour holes, rock dumps or canvas mats used as protection).

  • Structural integrity / suitability lifting operations
  • Soil plugs / grout in piles
  • Drill cuttings and debris encountered
  • Make safe & inventory phase critical
  • (Crew) access more complex then expected
  • Site access, simeops and 3rd party interfaces
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DEVELOPMENTS

  • 1. FLOATING JACKET REMOVAL
  • Based on buoyancy tanks
  • (As done for FRIGG in 2008)
  • 2. COOPERATION
  • Based on complementary assets
  • (e.g. heavy lift vessel)
  • 3. NEW ASSETS
  • Based on asset development
  • 4. R&D / TML
  • Cutting technology / motion control