Shear wave method of seismic prospecting

Details Shear wave method of seismic prospecting Shear wave method of seismic prospecting

G - Physics

01

V

349/17

G01V 1/28 (2006.01)

Patent

CA 1125905

ABSTRACT The baseplate of a shear wave seismic vibrator is vibrated to generate a shear wave of predetermined waveform. The resulting seismic waves are recorded. The pressure waves also generated by the shear wave vibrator appear on the record as noise. The baseplate is then vibrated to generate a shear wave of predetermined waveform which is substantially the same as but substantially opposed in phase to the previous shear wave generated. The resulting seismic waves are then detected and subtracted from the previous record to reduce noise caused by pressure waves simulta- neously generated by the shear wave vibrator.

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