Low-frequency vibroseis data with maximum displacement sweeps

摘要

Several recent advances in land-seismic acquisition equipment and processing algorithms have encouraged exploration geophysicists to reconsider the potential benefits of energetic low frequencies for geophysical applications, imaging beneath high-velocity and highly absorbing formations, deep imaging, acoustic impedance inversion, velocity model estimation in geophysically complex areas, and inversion of surface waves to characterize near-surface elastic properties.