FIELD: physics.
SUBSTANCE: invention relates to geophysics and can be used in borehole seismic exploration. Fibre optic sensor for borehole seismic survey comprises an optical fibre cable being lowered into the well and at least one group of resonators disposed on the fibre optic cable. Each group of resonators contains at least one active element having its own resonant frequency in the frequency range of the measured seismic waves.
EFFECT: technical result is an increase in the accuracy and informativeness of the data obtained.
6 cl, 4 dwg
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