Matrix Delivers Installation Buoyancy Structure to Heerema for LNG Project

Australia's Matrix Composites & Engineering (MCE) reported Monday the delivery of one of the largest installation buoyancy structures in the world to Heerema Marine Contractors (HMC). The structure weighs 103 metric tons in air and provides 150 metric tons of uplift in seawater, the equivalent of eight large public buses. Made from a modular design, the buoyancy system (called IsoBlox) can be assembled in an almost infinite number of 3D configurations to meet the most challenging requirements. The structure forms part of a modular installation buoyancy package and will be used to deploy HMC’s subsea production equipment used on a major liquefied natural gas (LNG) project off the coast of Western Australia.

The modular installation buoyancy package will be used in conjunction with HMC’s installation vessel Aegir. Together, they will ensure the safe installation of the Flowline End Termination (FLET) and In Line Tee (ILT) structures onto the seabed, 820 feet (250 meters) below water. The largest buoy in the package will be used to install the 150 metric ton, 18 inch ILT and associated pipework.

Matrix’s modular installation buoyancy structures (IsoBlox are assembled from a number of standard elements. The 150 metric ton buoy is made up of 72 standard elements held in place with a through member. The structure is 40.3 feet (12.3 meters) high, 21.1 feet (6.44 meters) long and weighs 103 metric tons in air.

A standard, modular design allows the structure to be reassembled into different configurations as client requirements change. Manufacturing efficiency is maximized as customized configurations can easily be assembled from a single standard building block element. Standard, modular designs also allow for damaged elements to be removed rather than replacing the entire module. Together, these features make the Company’s installation buoyancy a more cost effective and flexible solution compared to customised buoyancy.

Matrix’s CEO Aaron Begley said there is nothing like our buoyancy in the market today. The standard element design means clients can take advantage of significant cost savings over customized designs. The modularity of the design means that in most cases, only one set of modules needs to be purchased in order to satisfy an entire set of requirements. This represents a significant cost savings for clients as well as eliminating the time factor involved with manufacturing new buoyancy as client requirements change.

Using our advanced syntactic foam buoyancy system which has made Matrix a global technical leader in the manufacture of riser buoyancy, clients can be assured of a quality, reliable product”.

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