Pluto LNG Project

Allseas Australia

Project Overview

Woodside's Pluto LNG Project is on track to become the fastest developed liquefied natural gas project in the world, with first LNG delivered in May 2012. The Project processes gas from the Pluto and Xena gas fields, located about 190km north-west of Karratha in Western Australia, into LNG and condensate.

In 2009 MMA provided marine support to the Pluto shallow water pipelay, a contract awarded to Allseas Australia. Allseas' shallow water pipelay barge, the Tog Mor, layed 23km subsea pipeline from landfall to the deepwater section of the project where the deepwater pipelay vessel, the Audacia took over. MMA's role included the provision of a total marine package to support the Tog Mor's pipelaying operations as well as general supply duties in respect of the Audacia.

MMA mobilised the following vessels in support of the project:

  • Star 2, a 72T AHTS. Delivered to MMA as a newbuild, the Star acted as primary tow vessel and AHT for the TOG Mor.
  • Mermaid Supporter, a 65T AHT and secondary shallow water anchor handler.
  • Mermaid Searcher, a Multi-Purpose Vessel with special purpose certificate, delivered as a new build especially for the project.
  • Mermaid Carver, a 40T AZD in field support tug.
  • Mermaid Constructor, a 250’ pipe barge.
  • Maritime Dawn and Maritime Falcon 2 x 250' pipehaul barges. MMA project managed the preparation of these barges to meet strict project and AQIS requirements.

Project Snapshot

Project NamePluto LNG Project
Project OperatorWoodside Energy Limited
LocationNorth West Shelf, Australia
MMA's ClientAllseas Australia
Scope of WorkShallow water pipelay support. Marine and supply base services
Vessels UtilisedPOSH Star 2, tow and AHT support
Mermaid Supporter, AHT support
Mermaid Carver, in field assist
Mermaid Constructor, pipe barge
Maritime Dawn, pipehaul
Maritime Falcon, pipehaul
Various MMA vessels, provided in field support and supply services.


Achievements and Results

MMA's Project Group chartered in additional tugs from overseas to satisfy Allseas' specialised requirements in relation to bollard pull rating and vessel capability. In all cases, the international mobilisation of vessels into Australia was executed to ensure that each vessel met the project's stringent safety standards and was Australian compliant.

In addition, MMA's experienced slipway team made capacity enhancing vessel modifications to both the Mermaid Supporter and the Star 2 such that the Tog Mor's anchors could be deployed safely.

MMA also provided an ad hoc supply base services package to provide Allseas with the flexibility and responsiveness required to react to any changes in the project timeline. As a result, the project was delivered on time and on budget without unnecessary delay.

The project was executed with impeccable safety performance and no industrial action on any MMA assets. MMA contributes this safety and IR performance in part to the fact that we man our vessels with our existing experienced base of employed sea staff. MMA's ability to offer experienced and co-operative seastaff is a unique feature of our operations that consistently impacts positively on the execution of our clients' projects.