| 摘要 |
FIELD: geophysics.SUBSTANCE: invention relates to geophysics and can be used in seismic surveys. Disclosed is method for vibration seismic survey, based on excitation and recording of vibration seismic vibrations, and including correcting excited signals by reducing relative intensity spectrum component for oscillations, being of no interest for exploration. In compliance with present invention, also proposed to excite and register vibrations thereafter, as resonance frequency is defined for at least one of interferences required to be suppressed. Interference suppression can be achieved directly by exclusion of excited frequencies from spectrum, for example by excitation of oscillations using different reference signals (sweep signals), which do not contain resonance frequencies. Other alternative way proposed in one embodiment of invention, consists in that frequency variation rate of excited signal is increased when oscillations are excited in frequency range, containing each of resonance frequencies.EFFECT: technical result is increased data quality in vibration seismic survey.1 cl |
