EXPLORATION SEISMOLOGY METHOD Russian patent published in 2006 - IPC G01V1/00 

FIELD: geophysics.

SUBSTANCE: in accordance to the method, dispersive curve of micro-seismic waves is determined preliminarily. Wave lengths λ are determined as well as frequency spectrum of micro-seismic signal on basis of analysis of apparent speeds, wherein it consists of Raleigh waves. Seismic indicators are positioned across researched territory in such a way, that distance between them was not more than half the shortest length of Raleigh wave. Then, amplitude difference of measuring channels of seismic indicators is determined within frequencies band of micro-seismic signal. Micro-seismic signal is registered by no less than two seismic stations, one of which is mounted in stationary manner in the central portion of researched territory, and the rest are moving across researched territory. Accumulation of power spectrum of micro-seismic signal is performed in each measurement point during time, enough to reach stationary spectrum. Spatial variations spectrum of micro-seismic signal is connected for each measurements point. Maps of amplitude variations of micro-seismic signal are built for each spectrum frequency of spatial variations. Alignment of each received map is performed to appropriate depth H.

EFFECT: increased depth capacity of exploration seismology with simultaneous increase in trustworthiness of results.

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