Single and multichannel seismics

Abstract

Seismic surveys provide one of the most detailed image of the subsurface from shallow (few tens of meters) to deep (several kilometers or even tens of kilometers) intervals. Although most of the recent seismic surveys utilize multichannel recording, high-resolution single-channel seismic surveys can also provide a cost-effective solution for offshore surveys. Main advantage of single-channel seismics is high-resolution imaging and relative simplicity of the survey. Multichannel surveys, on the other hand, can significantly improve the signal-to-noise ratio of the seismic profile by applying multifold imaging and at the same time also provide additional information, for example, estimates of the velocity field.