Allseas GS2 Pipeline Installation



Contact Details


  Carla Peyton
  (08) 9365 7543
 CONTACT EMAIL

  Locations: WA Australia (Offshore)
  Project Status: Execution
  Project Owner ALLSEAS MARINE CONTRACTORS AUSTRALIA PTY LTD

Project Details


Chevron Australia has developed the Gorgon and Jansz gas fields located within the Greater Gorgon area, between 130 and 200 kilometres off the northwest coast of Western Australia. The Gorgon Stage 2 Project supplements the existing Gorgon and Jansz gas field development with additional wells and supporting infrastructure.

 

Allseas Group S.A. is a global leader in offshore pipeline installation and subsea construction. The company employs over 2,000 people worldwide and operates a versatile fleet of six specialised pipelay and support vessels, designed and developed in-house.

 

Founded in 1985, Allseas has gained worldwide experience in all types of offshore and subsea construction projects. Allseas' approach is to support clients already in the conceptual design stage and offer its services for project management, engineering and procurement up to and including installation and commissioning.

 

Allseas will be responsible for Work Package #1 of the Gorgon Stage 2 Project and its scope of work will involve installation of:

•              24-inch Gorgon and 18-inch Jansz CRA production flowlines

•              8-inch Gorgon and 6-inch Jansz MEG pipeline 

•              6-inch Gorgon and 6-inch Jansz Utility pipelines

•              12 pipeline end terminations (PLETs) consisting of:

                a)       4 open PLETs for the CRA production flowlines

                b)       8 J-mode PLETs for the carbon steel MEG and Utility pipelines 

•              18 anti-burial mattresses

•              4 active pipe supports (APS)

•              15 buckle initiator sleepers (BIS)

•              Flooding, cleaning, gauging and hydro-testing of all pipelines

•              Span correction as required.

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Project Documents


Allseas information

  ▲ CONTRACT
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Work Packages


There are currently no open work packages for this project.

OPEN LISTINGS    AWARDED    CLOSED LISTINGS    OTHER
OPEN FOR EOI    INCOMPLETE EOI    EOI COMPLETED
STATUS   ALLSEAS INFORMATION    ▲ CONTRACT OPENS FULL
SCOPE
CLOSES
PARTIAL
SCOPE
CLOSES
DOCS FULL
SCOPE
EOI
PARTIAL
SCOPE
EOI
Flood Clean Pressure Test Dewater and Dry FCGT pipeline package 20 Aug 183 Sep 183 Sep 18
Allseas requires the capability to flood, clean, pressure test, dewater and dry these pipeline
Subsea Structure Fabrication 20 Aug 1810 Sep 1810 Sep 18
Fabricate structures of up to approx. 75 metric tons with footprints up to 25m by 8
Offshore crew for Allseas vessels on Gorgon Stage 2 project20 Aug 1817 Sep 1817 Sep 18
Supply offshore crew for Allseas' pipelay vessel Audacia and offshore construction vessel Oceanic