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News > Positioning Venture in the Gulf of Guinea

Positioning Venture in the Gulf of Guinea

  19/08/2011
Watergate Technical Services based in Port Harcourt, Nigeria, purchased two Applied Acoustics' Easytrak USBL tracking systems in 2010 and they quickly became a successful operational tool.
 

Screen grab taken from the vessel’s pc showing the operators tracking the divers working in the sea over pipelines.

 

Prior to the purchase of the tracking system, diver positioning and tracking had been challenging during subsea riser and mattress installations during pipelaying projects. Once Easytrak was deployed, interfaced with GPS and gyro compass, precise positioning and heading determination of the diver and mattress installation frame became much easier. During a recent mattress-laying operation off Warri in the Gulf of Guinea, accuracy of less than one metre was achieved, even when working in a near-shallow environment.

 

The ability to interface the unit with a navigation computer also makes the operation free of ambiguity as the positioning information can be displayed at strategic offices as well as at the dive shack. This visible confirmation of operations underwater provides the client with all the necessary confidence in the accuracy and efficiency of the Watergate operation.

 

The company's offshore operations cover the full range of subsea services such as pre-installation pipe route surveys, SEWOP positioning, site hazard surveys, subsea riser and mattress installations. Survey Manager, Ugo Nwangwu, maintains the Easytrak system with its 900 Series Beacons fitting perfectly in their deepwater survey operations in the Nigerian Gulf of Guinea and Bight of Bonny.

 




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 Offshore  Positioning  USBL  Environment  Tracking 
 Acoustics 

Supplier: Applied Acoustic Engineering Ltd.

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SubseaTech CAT Surveyor ASV

 

CAT-Surveyor is a catamaran type drone (3m long), with tele-operated and automatic navigation modes, allowing hydrographic data acquisition and/or port/inland above and under water surveillance. With its open architecture and high-speed PC to PC communication the system permits easy integration and deployment of sensors such as video day/night cameras, side scan sonar, multibeam sonar, acoustic cameras, sediment sounders, magnetometers, physico-chemical sensors, etc. 

 

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