Experiencing the full bandwidth of energy from exploration to production with the art of BroadSeis

Jo Firth, Idar Horstad and Menne Schakel present the latest developments in BroadSeis broadband technology. The exceptionally broad bandwidth of more than 6 octaves delivered by BroadSeis variable-depth streamers, in combination with a BroadSource multi-level broadband source and advanced imaging algorithms, not only provides unprecedented information about the subsurface, it also produces stunning images. In particular, the additional high signal-to-noise ratios at low frequencies, down to 2.5 Hz, provide extra ‘texture’ as these provide an envelope to the seismic signal which shapes the larger-scale impedance variations, to deliver clear distinction between stratigraphic packages (see Figure 1). This full bandwidth has been exploited in many areas of the world to reduce exploration risk, improve development plans and maximize return on investment.