‘Pioneering Spirit’

‘Pioneering Spirit’

D.P. Platform Installation/Removal and Pipelay Vessel

Special offshore vessels - Pioneering Spirit D.P. Platform Installation/Removal and Pipelay Vessel - Allseas
Customers: ALLSEAS Engineering B.V. / Société d’Exploitation du Pieter Schelte NV

The largest construction vessel ever built and designed for the single-lift installation and removal of large oil and gas platforms and the installation of record-weight pipelines.

Main dimensions of the platform installation/removal and pipelay vessel:

LOA 382.0 m
Breadth 124.0 m
Draught, scantling 27.0 m
Displacement, transit 365,000 t
Displacement, max 932,000 t
Thrusters 12 pcs
Vessel capabilities:
DP Class DP3
Topside lift capacity 48,000 t
Jacket lift 25,000 t
Pipelay S-lay
Pipe size 6-68”
Pipe joint up to 12.8 m


Basic design:

  • Update of the P&ID´s and D&ID´s provided by the Client
  • Structural design and calculation/analysis of large equipment foundations, supporting structures, smaller deckhouses, etc.
  • E&I design except power generation, HV distribution and propulsion systems
  • Technical specification for procurement purpose

Detail engineering, Complete engineering package of the Vessel consisting of:

TRIBON M3 3D model including:

  • Structures as per scantling drawings, inclusive updates during detail engineering
  • Openings for windows, doors, stairs etc.
  • Reinforcements for heavy equipment
  • Penetrations for piping, ducting and cable trays
  • Main equipment (mechanical & electrical)
  • Equipment foundations
  • Piping DN 25 and larger including pipe supports
  • Ventilation- and spiro ducts inclusive supports
  • Cable trays inclusive supports
  • Deck outfitting equipment (anchoring, mooring, cranes, lifesaving eq. etc)
  • Steel outfitting such as stairs, ladders, platforms, railings, etc.
  • Accommodation (Interior part) in 2D
  • Electrical & Instrumentation in 2D, including calculations and cable database

Customer Benefits:

  • “One stop” engineering office
  • Short engineering time, at peak up to 300 engineers involved
  • On-line access to all project documents via Deltamarin Web based Document Management System
  • MTO´s and weight information available before entering yard discussions
  • Access to 3D model / possibility to control the detail engineering phase
  • Handed over 3D model good platform for the yard to continue the work

Special Features:

  • One of the largest individual engineering packages contracted by Deltamarin
  • The largest ever TRIBON 3D model by Deltamarin.
Ship delivered in 2014, formerly named Pieter Schelte
Esa Jokioinen
Sales, offshore
Tel. +358 2 4336 344
Mobile +358 40 834 8112
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