SAN ANTONIO, Texas –Sercel Inc. featured its new Nautilus acoustical range measurement and streamer positioning system at the annual SEG meeting in San Antonio. The device controls both the depth and lateral movement of the streamer lines. Field testing is under way and the first commercial application is expected in 1Q 2008.
The control wings clamp onto an in-line canister which houses all the functions of leveling, steering, acoustics, and telemetry. Power is from the streamer with an internal rechargeable battery for operation during streamer maintenance.
The control "birds" steer themselves in relationship to the adjacent birds using a main line as a reference streamer for 3D and 4D configurations. This capability, when coupled with thee acoustic positioning, is expected to increase the repeatability of successive acquisition runs for 4D reservoir monitoring, Sercel says.