FIELD: survey of boreholes or wells, particularly to measure specific borehole fluid resistance.
SUBSTANCE: borehole resistivity meter comprises metal body, detector, including exiting and measuring toroidal coils coaxially arranged inside the body, fluid intake means and borehole fluid channel formed inside the body. The channel includes sealing members and measuring section defined by bush. The bush is made of dielectric material and located outside measuring coil.
EFFECT: increased measuring reliability, increased ability of resistivity meter assembling-disassembling.
3 cl, 2 dwg
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