SEISMIC METHOD OF DETECTING GEOLOGICAL INHOMOGENEITIES IN COAL-BEARING LAYERS Russian patent published in 2012 - IPC G01V1/00 

FIELD: physics.

SUBSTANCE: disclosed is a seismic method of detecting geologic inhomogeneities in coal-bearing layers, involving recording of seismic wave fields in a wide-band, high-frequency range. Self-contained recorders are synchronised with each other. The excitation start time is recorded with one of the self-contained recorders (with an excitation time marker) connected to an excitation source, by generating duration- and amplitude-standardised pulses. Further, visual analysis is performed over data obtained from the rest of the self-contained recorders, after which seismograms of the common source point (or common reception point) are formed and said seismograms are processed while constructing seismographic velocity sections based on the anomalies of which distinctive features of the geologic structure of the coal-bearing layer is determined.

EFFECT: higher accuracy of recording excitation moment, which enables reliable identification and timing of excitation marks, and also provide a surveying system with a large number of points for receiving seismic data.

3 cl, 10 dwg