PGS prove GeoStreamer power with Quantification in Australia
Quantitative analysis of GeoStreamer® data acquired in a spatially-coincident manner with conventional streamer data demonstrate a four to five-fold boost in the low frequency signal content, about twice the high frequency signal content (before the application of any spectral enhancement processing), and a higher signal-to-noise content for all frequencies and for all depths.
Furthermore, the frequency range of signal is boosted by 55 – 65% through the main target interval. Pre-stack relative impedance inversion analysis demonstrates a significant improvement in low frequency content and character, and high frequency resolution. GeoStreamer® data thus provides a bridge through the historical gap between the seismic bandwidth available for inversion and the low frequency model derived from well log data.
A test using the GeoStreamer® combined with a “multi-level” source array also demonstrates the additional improvements derived from attenuating the source ghost, in addition to removing the receiver ghost with the GeoStreamer®. Data in one of the most problematic seismic areas of the North West Shelf of Australia is significantly improved. Thus, a new exploration region has been created. PGS is now working on further development and commercialization of the multi-level source strategy.
Full information can be found at PGS Geostreamer
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