Geo Streamer
Tansa is equipped with TGS dual sensor “GeoStreamer®”. By using pressure sensors and vertical velocity sensors, GeoStreamer® can discriminate between sea bottom reflections from ghost reflections, effectively “de-ghosting” the reflected signals. This allows the streamers to be towed deeper, reducing unwanted noise from the sea surface, improving low frequency signal and allowing streamer control and data acquisition to continue in higher sea states.
Combining the latest acquisition technology onboard with our experienced crews, Tansa’s seismic acquisition efficiency and data quality delivers more value than ever.
3D seismic acquisition with triple sourc
Instead of the dual source, which is widely adopted as the data acquisition method in seismic surveys, the triple source, which allows for denser data acquisition with the same number of streamers is the standard specification in OGF. This increases survey efficiency without compromising the cross-line spacing of the acquisition or increasing the number of streamers. The relative reduction in the number of streamers can consequently lower the risk to the towing equipment itself.
OGF has pioneered the use of the triple source as a standard specification in Japan since FY2023, and is working to improve data acquisition efficiency.
