Towards the Low Frequencies– Equipments and Applications

B007 TOWARDS THE LOW FREQUENCIES: EQUIPMENTS AND APPLICATIONS 1 Summary New acquisition equipment is described that makes it possible to emit and receive low frequencies (below 10 Hz). This includes: for land heavy vibrators and digital accelerometers; for marine high pressure air gun clusters. The primary interest of recording low frequencies is to improve vertical resolution of surface seismic by widening the frequency spectrum. Enrichment of the reflected signal by lower frequencies is also critical for exploration of deep targets for converted wave recording and for post-stack amplitude inversion. Introduction A large improvement in the vertical resolution of surface seismic