Acergy Northern Europe and Canada Survey Business Unit has purchased two KONGSBERG
HAIN subsea positioning reference systems. The systems are due for delivery in late
March for initial use on a key project for a major oil company in Norway.
Reduce cost and operational risk
The HAIN (Hydro-acoustic Aided Inertial Navigation) system, a combination of
KONGSBERG 's HiPAP precise acoustic positioning and INS (Inertial Navigation System)
technologies, is a proven valuable tool in the fight to reduce cost and operation
risk in deepwater field developments and construction projects.
Accuracy can be improved by up to 300%
In the combined operation of HAIN Subsea & HiPAP systems, the overall deepwater
positioning accuracy can be improved by up to 300% in USBL mode. Subsequently, more
subsea work can be completed using this positioning mode, without the time consuming
need to deploy (and retrieve) large numbers of LBL transponders and frames. This
means less subsea assets to be capitalised, maintained and managed, while further
reducing the unit failure risk.
Lower risk of vehicle failure
“ROV pilots have found the HAIN USBL position plots much more reliable, so aiding
navigation and speeding up the vehicle's work rate. Less time in the water means
a lower risk of vehicle failure, thus allowing more time on deck for operational
maintenance, minimising the chance of future costly downtime,” comments Iain Fullerton,
Committed to using the latest technology
“Acergy is committed to using the latest technology combined with our existing
assets to ensure efficient survey operations. Using HAIN, we are confident that
the survey work we carry out at major oil fields will be more time and cost effective,
due to the greater positioning accuracy of the HAIN system,” says John Meaden, Survey
Manager, Northern Europe and Canada.
Significant operational advantages
HAIN is now established as the leading ROV positioning system. Over the last
18 months, more subsea operators have been able to realise significant operational
advantages using the HiPAP / HAIN combination. These operators have been able to
maximise the use of their existing assets while being able to reduce operational
vessel time and subsea hardware while improving ROV positioning repeatability &