NASNet DPR Order for Nautronix
Nautronix, UK, has secured an order from HHI, Korea, to supply a NASNet DPR (dynamic positioning reference) system which will be used on the Bollsta Dolphin drilling rig.
NASNet DPR is a position reference system for dynamic positioning; it also has the benefits of the NASNet subsea acoustic positioning system and can be used either within pre-installed field-wide NASNet arrays, or as a localised positioning system. The system provides robust mitigation against many of the risks associated with both acoustic and satellite positioning systems, allowing multiple users to benefit simultaneously from the same array with no risk of interference. NASNet DPR uses acoustic technology combined with a user-friendly interface to provide high speed position updates and stable positioning in water depths up to 4,000m.
Graeme Murray, managing director of Dolphin Drilling, said that Dolphin Drilling is very supportive of this new technology and sees the significant advantages it can give to the customer. The system will give fast one-way, multi-user acoustic positioning which will give the company opportunities to expand its subsea capabilities and redundancy for any loss of GPS due to scintillation.
Mark Patterson, CEO of Nautronix, comments this is the first time it has been used on a drilling rig.
