METHOD FOR OBTAINING FIELD SEISMOGRAMS FREE FROM MULTIPLE WAVES Russian patent published in 2010 - IPC G01V1/24 

FIELD: measurement technique.

SUBSTANCE: suggested invention refers to methods for studying deep structures of terrains, exploration activities. The essence of claimed invention consists in excitation, recording oscillations, moving excitation and recording points, transformation of oscillating process of interfering multiple waves into oscillating process of useful reflected waves. For this purpose additionally to control signal, the signal on active element which transmits oscillations into ground or into its surroundings and MRW (multiple reflected wave) records near excitation point are recorded by groups of seismic receivers with various sensitivity. Multiple wave signal is constructed from MRW record, signal on active element and control signal. MRW seismogram correlation is executed with multiple wave signal in reverse polarity supplemented by the signal excited by source.

EFFECT: increase in useful signal intensity, obtaining simple wave pattern with high resolution and high degree of reliability.