Recent projects

Lord Howe Island – Sea Rescue Mooring

Lord Howe Island – Sea Rescue Mooring

ONA Consultants recently completed a mooring consulting scope with NSW Sea Rescue. The client called on ONA expertise in the mooring field to support considerations for their new rescue capability, the former NSW Police 16m patrol vessel “Fearless” to be situated at the island to support sea rescue endeavors in the Pacific Ocean. The lagoon […]

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Queensland Tug Moorings

Queensland Tug Moorings

ONA Consultants, for the Cardno Maritime Team took the lead on the re-design and refurbishment of terminal tug moorings in North Queensland. The scope was was in three parts including: Investigation Diving Remediation Re-design and Installation The moorings had previously been installed and inspected by various marine contractors yet had a history of ongoing failures. […]

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Woodside DP Risk Engineering

Woodside DP Risk Engineering

Offshore Naval Architects (ONA) provided dynamic positioning risk engineering and support for installation of the 1650 metric ton water handling module for client Woodside on the Woodside-operated Pluto Alpha offshore platform in Australia. The module was fabricated by the MMHE yard in Johor, Malaysia and was picked up by the Heerema Aegir from the quay […]

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JH143 Shipyard Risk Scope – White Rabbit

JH143 Shipyard Risk Scope – White Rabbit

ONA recently provided JH143 Risk Assessment of Echo Yachts, for an underwriter. The scope covered the launch of the luxury motor vessel from the Echo Yachts yard in Henderson WA. ONA was able to draw on our past experience with such shipyard work in combination with our heavy lift and docking capabilities to offer truly […]

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FPSO Positioning and Connect Operability

FPSO Positioning and Connect Operability

ONA Consultants has been contracted by an energy major to undertake marine operations engineering with a view to understand re-connect operability for an FPSO on the North West Shelf, Australia. The work scope included modelling and operability assessments of the FPSO on the connected internal APL turret and mooring system, under the influence of a […]

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FPSO Static Tow and Operability Engineering Scope

FPSO Static Tow and Operability Engineering Scope

ONA Consultants has been contracted by an energy major to undertake position keeping engineering for an FPSO on the North West Shelf, Australia. The work scope included modelling and operability assessments of the FPSO on the connected turret and mooring system, under the influence of a multitude of probable sea states. ONA has developed robust […]

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Greater Enfield Project Tow Consulting

Greater Enfield Project Tow Consulting

ONA were recently completed a tow consulting scope on the Woodside Greater Enfield Project on behalf of TechnipFMC. The scope comprised tow planning, procedures, stability, and tow load path engineering and verification of multiple voyages. Each tow formed part of the mobilisation of equipment and permanent materials from Singapore. Typically marine transportation scopes in the […]

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Nearshore Construction Naval Architectural Support

Nearshore Construction Naval Architectural Support

ONA Consulting were recently awarded naval architectural support scope including stability verification for a nearshore marine contractor. The scope draws on our long experience supporting marine transportation and engineering scopes across Australia. ONA consultants provide a range of engineering and verification support services for marine tow contractors, heavy lift transportation and installation contractors. The scopes […]

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ONA awarded FPSO Marine Engineering Scope

ONA awarded FPSO Marine Engineering 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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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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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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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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