Netherlands-based geoscience services provider Fugro has completed a metocean data acquisition for Hess Ghana Exploration.

During the 33-month period, the company made measurements at three locations in deepwater Tano / Cape Three Points block within western Ghana, in water depths of about 2,400m.

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Fugro deployed a Wavescan buoy to measure waves, currents and meteorological and seawater parameters, and real-time data was displayed on a project-specific webpage that was accessed by Hess with the help of a log-in.

A long mooring was also separately deployed, measuring current profiles over the complete water depth, as well as seawater temperature and salinity. A short mooring was also in place to acquire near seabed currents.

"The final report will include data from each of the three stations over the complete duration of the project, and will form part of the wider FEED study being carried out by Hess."

Data from both current moorings was stored on board the instruments’ internal memories and recovered during each of the service visits at three-month intervals.

Fugro GEOS commercial manager Jonathan Ainley said: “The final report will include data from each of the three stations over the complete duration of the project, and will form part of the wider FEED study being carried out by Hess.”

Hess will use the information for various engineering activities including riser and facilities design, fatigue calculations and also to calculate operability.

The data will also be helpful to assist decisions for physical construction at the field.

Over the life of the project, Fugro’s vessels, including the Fugro Frontier, were used to accomplish the nine site visits required.

Vessel and personnel mobilisations were minimised by combining site visits with other Fugro operations in the region so as to reduce costs.

The metocean measurements were processed after each service visit before being analysed and reported to provide controlled data to Hess.