DYNAMICS OF THE EMISSION RESPONSE OF THE GEOLOGICAL MEDIUM ACCORDING TO MARINE SEISMIC DATA

Abstract

The present work is devoted to the study of the process of the induced emission of microseisms in an oil reservoir after the passage of elastic waves through it from shotpoint oscillations during seismic exploration. Based on the example of marine seismic data, proven the absence of spectral anomalies of microseisms at the beginning of the traces, before the arrival of waves from the source, and the occurrence of anomalies of medium-frequency microseisms in the 17–23 Hz range at late times of the seismic gathers, after the passage of reflected and multiple waves, were established. The position of the zones of increased emission of microseisms corresponds to oil deposits. In the case of producted oil field, the emission of microseisms is observed, decaying in time, until the end of the recording.