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Currently 90% of all seismic information about what is under the sea bed is obtained using ships that tow sensors and measure the echo while cruising. This method can be difficult especially if the area is obscured by existing infrastructure such as drilling rigs and underwater pipelines or are too costly for smaller areas.
Reservoir Exploration Technology "RTX", a marine geophysical company specializing in multi-component sea floor acquisition, places sensors in 6 km long cables and lays these directly on the sea bed. Each cable is connected to a large floating buoy which contains the equipment for storing the data received from the sensors in the cables and sends these via a radio link to the main ship. This technique also means even more detailed information can be obtained.
Fitted inside each buoy is an AGT 4000 generator which ensures the battery systems are constantly charged and sufficient energy is available for on-board computers and radios. By automating deployment, reducing the number of vessels and manpower involved, the costs for acquiring detailed data is made commercially affordable not only for smaller companies but also for exploring smaller areas.
Searching for oil in the Gulf of Mexico
Norwegian Fjords were used to test the generators within the buoys during the development phase and early trials.
A Fischer Panda generator within each buoy provides power for electronic systems after deployment.
The self-contained power solution using generators allows operations to be extended over longer periods. The buoys can even be attached to the sea floor so that detailed 4D data models can be produced. Activity within an existing field can be monitored over a longer period of time so that the reserves within can be optimally extracted.
The generator project is being managed by Fischer Pandas Norwegian Distributor Anda-Olsen. The generators were recently deployed in the Gulf of Mexico in a deployment using six 6000 meter long cables placed at 25 meter intervals.