SYSTEM FOR MICROSEISMIC PROBING EARTH'S CRUST AND SEISMIC MONITORING

摘要

FIELD: physics.;SUBSTANCE: disclosed method of detecting seismic signals when searching for underwater hydrocarbon deposits involves detecting seismic vibrations of the Earth's surface using seismic vibration detectors capable of detecting seismic vibrations in the range from 0.1 to 20 Hz. The method involves further detection of seismic vibrations in the 20-40 Hz range, the electromagnetic field in the frequency range from 300 to 0.0001 Hz with detection period of 0.033-10000 s. The method also involves detection of seismic vibrations in the 20-40 Hz range, the electromagnetic field in the frequency range from 300 to 0.0001 Hz with detection period of 0.033-10000 s to obtain simultaneous records of variations of the electromagnetic field and the seismic field. The geoelectric section and velocity section of the sedimentary cover are constructed and geologic interpretation of the sedimentary section is performed.;EFFECT: high accuracy of probing data.