METHOD FOR SEISMIC SURVEY WITH EXCITATION OF ELASTIC VIBRATIONS IN AIR OR AQUATIC MEDIUM AND FORMATION OF APPARENT SEISMOGRAMS WITH APPARENT SOURCE, COMBINED WITH SEISMIC DETECTORS AT BOUNDARY OF ACOUSTIC AND ELASTIC MEDIA OR NEAR SAID BOUNDARY

摘要

FIELD: physics.;SUBSTANCE: elastic vibrations are excited repeatedly at different inclination angles relative to the points of reception in air, water or on a solid body floating on water. The elastic vibrations are detected by sensors situated on the earth's surface, at the bottom of the water reservoir or inside an elastic half-space and stored in digital form. Further, seismograms are formed for apparent sources located at each point of reception via summation of records in each seismic detector with advancing delays equal to the time of propagation from real vibration sources to selected apparent sources, controlled based on the time of detecting the first arrival at the location of the apparent source.;EFFECT: high accuracy of exploration data by improving the signal-to-noise ratio.;6 dwg