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Aviation Oil & Gas
OEG Offshore Helifuel Laydown Skid Saipem Kaombo web RGB 72dpi

Kaombo is an ultra-deep offshore project in Angola. Its aim is to develop oil deposits spread across six different fields, connected via 300 kilometres of subsea pipelines to two floating production, storage and offloading (FPSO) vessels: Kaombo Norte and Kaombo Sul.

In February 2015 Harran Ltd, now OEG Offshore was awarded a contract from Saipem S.A. for design and fabrication of twin bespoke helicopter refuelling packages for installation on board Total’s Kaombo ‘Norte’ & ‘Sul’ (North & South) FPSO vessels.


Largest single project for Harran

  • Upscale of project and build teams to deliver refuelling systems
  • Workshop facility modifications

Harran’s workshop facility in Aberdeen had to be modified in order to handle the size and number of refuelling skids in production as the build coincided with two other significant projects.

Work scope

To design and build twin bespoke helicopter refuelling packages to comply with highly stringent CAP 437 safety and operational requirements, for installation on board Total’s Kaombo ‘Norte’ & ‘Sul’ (North & South) FPSOs.

The dispensing cabinet housed the necessary delivery equipment to safely deliver on-specification, contaminant-free Jet A-1 fuel to the operator’s aircraft. In 2017, Harran commissioned the systems and thereafter commenced on-going maintenance activities in line with CAP 437 requirements.


Each system comprised of a deluge protected tank laydown area complete with the following:

  • A pump & filtration skid
  • Five 4,000 litre transportable tanks built to IMO/IMDG, DNV and CAP 437 standards
  • A stainless steel dispensing cabinet

Download case study

Bespoke helicopter refuelling systems case study.