A Comparison of Vintage Hydrophone Seismic And Dual-sensor Seismic Offshore Cyprus

Lie, Øystein (Petroleum Geo-Services) | Semb, Per Helge (Petroleum Geo-Services)



New dual-sensor streamer 2D data have been compared to legacy conventional streamer data offshore Cyprus to analyze the differences and quantify the improvements in seismic resolution. A comparison of PSTM stacks after processing through the same flow of the vintage hydrophone data and the up-going pressure field (P-up) showed in general a higher signal-to-noise ratio and better resolution of the P-up image. Spectral analyses quantified the amplitude versus frequency level and showed a significant increase of low and high frequencies. The low frequency enhancement was particularly significant deeper in the sections with spectacular penetration below the highly reflective Messinian Salt layer.