Matrix supplied nearly 1,000 tonnes of production buoyancy for two mid-depth buoys to support flexible production risers for the $434 billion Ichthys LNG project in Western Australia and the Northern Territory. The buoyancy, made of composite syntactic foam, will provide 460 tonnes of uplift to support each buoy structure and was manufactured at Matrix's plant in Henderson, Western Australia. The buoyancy is designed to have a lifespan of over 40 years to match the expected operational life of the Ichthys Project.

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Snapshot
Client - McDermott International, Inc
Project location - Western Australia (WA)/ Northern Territory (NT)
Product - Production Buoyancy
Construction year - 2014
Scenario
Our client, McDermott's required buoyancy that would provide 460 tonnes of uplift to
support the flexible production risers on the Inpex- operated US$434 billion Ichthys
LNG project in WA/ NT.
Solution
Matrix supplied nearly 1,000 tonnes of production buoyancy for two of McDermott's mid
depth buoys (MDBs) which are some of the largest syntactic structures (submerged)
ever produced for production applications. The production buoyancy will sit inside the
steel MDB frame providing 460 tonne uplift to each structure. The MDBs in turn support
the flexible production risers leading to the central production facility. Matrix's
production buoyancy is designed to have a life span of greater than 40 years which is
the expected operational life of the Ichthys Project.
Matrix's production buoyancy is manufactured using composite syntactic foam as an
alternative to steel tanks. Syntactic foam does not corrode, nor does the foam structure
contain compartments which can potentially flood with water. Made from a closed cell
foam system, Matrix's production buoyancy is designed for long term deepwater
submersion. The buoyancy was manufactured at the Company's 20,000m composites
syntactic foam plant in Henderson, Western Australia, and assembled into the MDB
frame in Bayswater, Singapore.
Further Information
Contact
Production Buoyancy - Ichthys LNG Project
(McDermotts)
Category: Case Studies
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2. Outcome
Matrix successfully manufactured and delivered nearly 1,000 tonnes of production
buoyancy designed for long term subsea submersion.
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