Recent projects

Prelude FLNG Position Keeping Analysis

Prelude FLNG Position Keeping Analysis

Scope Keen to tap into our extensive FPSO position keeping experience, the client engaged our team to provide consulting support to the installation contractor for the position keeping of the Prelude FLNG located in the Browse Basin, Australia – the largest floating facility ever built. Due to the location of the Browse Basin, the FLNG […]

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Mooring Feasibility Study of Aging Shiploader Berth

Mooring Feasibility Study of Aging Shiploader Berth

Scope At the request of the facility owner, the ONA team undertook a mooring feasibility study of a typical bulk carrier alongside an aging ship loading facility. The ship loading facility was constructed in the 1940s and consists of unique rectangular box beam dolphins and a non-conventional fendering system made of truck tyres. The feasibility […]

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CALM Buoy Re-lifing

CALM Buoy Re-lifing

Scope The ONA team undertook an asset management challenge to ‘relife’ a CALM buoy and mooring system. The CALM buoy system was reaching the end of its design life and would fall out of class requirements. Our brief was to assess the condition of the CALM buoy system, from the topside components and hawser down […]

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Prelude FLNG Pile Mobilisation and Transportation

Prelude FLNG Pile Mobilisation and Transportation

Scope Our team was engaged to conduct a marine transportation study of the Prelude FLNG anchor piles on behalf of the installation contractor. The 16 piles, which are 5.5 m in diameter at 62 m long and weigh over 650 Te, are the heaviest in the world and were loaded out from a heavy lift […]

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Umbilical Riser Analysis

Umbilical Riser Analysis

Scope The Kitan Field is located in the Timor sea, ~500 km off the Australian coast, and includes an FPSO facility. We undertook an umbilical riser dynamic analysis, as well as a fatigue analysis, on behalf of the installation contractor on the Kitan Field development. The umbilical riser was installed in a lazy wave configuration […]

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Navy Frigate Berthing Feasibility Study

Navy Frigate Berthing Feasibility Study

Scope The client engaged our team to conduct a mooring feasibility study for a defence contractor’s berth facility in Henderson, WA. The facility consists of a small concrete wharf, complemented with dolphin piles and a second berth consisting only of dolphin piles. The goal for the project: to semi-permanently moor these vessels and assess the […]

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ONA awarded FPSO Marine Scope

ONA awarded FPSO Marine Scope

ONA Consultants has been contracted by another major oil and gas operator to undertake an FPSO engineering scope that includes design, structural engineering, finite element analysis, marine operations and procedurisation. Given our strong engineering and operations skills base, this scope was particularly well aligned and the team was able to execute the scope to the […]

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