DEVICE FOR STUDIES OF DYNAMIC STATE OF ROCKS IN A WELL Russian patent published in 2018 - IPC G01V1/40 G01V3/18 G01V11/00 

FIELD: geophysics.

SUBSTANCE: invention relates to the field of geophysics and can be used both for logging operations and for monitoring the dynamic state of rocks in wells. Claimed device comprises the following elements: three ferrite antennas (1, 2, 3), third ferrite antenna switch (4), first capacitor switch (5), three capacitors (6), first amplifier (7), signal mixer (8), switchable oscillator (9), low-pass filter (10), electromagnetic signal rectifier (11), three sensors for geo-acoustic signals (12, 13, 14), second geo-acoustic signal switch (15), second amplifier (16), stop filter (17), gamma radiation sensor (18), band-pass filter unit (19), rectifier unit (20), fourth switch (21), analog-to-digital converter (22), transmission unit (23), power supply unit (24), control unit (25), wireline cable (26).

EFFECT: increased informative nature of research.

1 cl, 1 dwg