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    • Jan 29, 2021

BPT signs collaboration agreement with Subsea 7

A pioneering design for a Floating Normally Unattended Installation (NUI) that has the potential to unlock smaller and deepwater oil and gas reservoirs is one step closer to commercialisation following the announcement of a collaboration agreement between Buoyant Production Technologies Ltd. (BPT), the engineering consultancy behind the design, and Subsea 7.


The agreement will see both BPT, a wholly-owned subsidiary of Crondall Energy Ltd, and Subsea 7 jointly promote, through early client engagement, compact NUIs for use in offshore energy developments in the oil and gas sectors globally. The technology provides a cost-effective and sustainable solution to producing stranded or uneconomic oil and gas reserves. The units can also be used as offshore substations in the renewables sector.




    • Jan 29, 2021

BPT signs collaboration agreement with Siemens Energy

BPT has announced that its pioneering Floating Normally Unattended Installation (NUI) design has moved closer to commercialisation with a strategic collaboration with Siemens Energy AS, to jointly market and deliver the units. NUI has the potential to economically unlock smaller and deep-water reservoirs.


The partnership will focus on the use of compact NUIs for the development of offshore oil and gas fields in deep-water locations. Siemens Energy’s digital solution will facilitate a low lifecycle cost solution to BPT’s proprietary ‘Floating NUI’ design that can make projects economically viable and significantly reduce carbon footprint when compared with traditional offshore facilities. With increasing focus on the environmental impact of oil and gas projects, as well as uncertainty surrounding commodity prices, Floating NUIs can offer a robust development solution for the future. The design also presents the potential to tie in sustainable power sources.

Siemens Energy AS and BPT have been successfully working together for the past two years, as part of the Oil and Gas Technology Centre’s ‘Facility of the Future’ study, developing and maturing Floating NUI technology. In this collaboration, BPT brings their proprietary Floating NUI designs, configured for a range of offshore developments. Siemens Energy AS provides the digital hardware and software necessary to enable remote control and operation for the duration of an asset’s lifecycle.


    • Sep 10, 2020

BPT`s Floating Normally Unattended Installation (NUI) receives Acceptance in Principle (AiP) from Ll


BPT’s floating unattended offshore installation – dubbed a “Floating NUI”, has received Acceptance in Principle (AiP) from Lloyds Register, indicating that the concept has been examined for compliance with the LR Rules and Regulations for the Classification of Offshore Units and is now ready to start engineering for project specific applications. ​

BPT’s patented proprietary design, is a compact single column offshore facility, designed and equipped specifically for unmanned operations. The unit’s low OPEX and low CAPEX deliver optimised lifecycle costs for a range of offshore developments. BPT has developed Floating NUI into several configurations including:

  • Utility buoys powered using renewable sources, that can replace subsea umbilicals for well control and management.

  • Normally unattended production units.

  • Offshore substation units for use in offshore wind farms and for power import/export to oil and gas infrastructure.

This Class Society AiP represents a significant stride forward in the development of the Floating NUI, providing clients with confidence that the design is sufficiently mature for near term offshore energy projects. ​ Buoyant Production Technologies is a wholly owned subsidiary of Crondall Energy, which has been set up to develop and commercialise a number of floating production technologies created by Crondall Energy. ​ For more information contact David Steed, General Manager Buoyant Production Technologies Ltd.

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