DEVICE FOR CALIBRATION OF BOREHOLE INSTRUMENTATION Russian patent published in 2015 - IPC G01V13/00 G01V5/12 

FIELD: physics, geophysics.

SUBSTANCE: invention relates to geophysical instrument making, in particular to gamma-gamma logging devices, namely to the field of metrological support of geophysical instrumentation and making reference samples for calibration of borehole instrumentation. The technical result is achieved by that the device for calibration of borehole instrumentation of density and lithodensity gamma-gamma logging in the form of saturated model of the bed, contains a cylindrical housing, filled with rock material and intercrossed by the well in the form of thin-walled glass-fibre pipe located along its long axis and ended with dib hole. Meanwhile in the housing, at least two vertical bafflers, tightly connected with the housing wall, its bottom and glass-fibre pipe are radially installed, forming identical, isolated from each other containers. Each of these containers is filled with rock material with preset density ρ and effective nuclear number Z_ef.

EFFECT: increase of speed of process of calibration of borehole instrumentation of density and lithodensity gamma-gamma logging, profitability and decrease of a radiation loading of personnel.

2 cl, 6 dwg