METHOD OF VIBRATION SEISMIC SURVEY Russian patent published in 2018 - IPC G01V1/02 G01V1/28 

FIELD: geophysics.

SUBSTANCE: vibration seismic survey method includes forcing and recording of continuous signals, as well as subsequent cross-correlation or deconvolution of the received recordings using a reference signal recorded in the near-surface area or in the well. Method is characterized in that the oscillations are forced by means of a sweep signal, which takes the original sweep signal converted into a minimum phase signal. Forcing of a minimum phase, rather than a zero-phase signal, permits the recording of directly minimal phase vibrograms, which are then fed to the input of a Wiener filter. Form of the minimum-phase sweep signal used to excite the minimum-phase continuous signals is obtained from its amplitude spectrum using the Hilbert transform.

EFFECT: technical result is an increase in the resolution enhancement of the method.

1 cl, 2 dwg