FIELD: mining.
SUBSTANCE: there are performed surface radon survey, radon indicator surveys and measurement of gamma activity with borehole gamma-gamma penetrometre calliper (BGPC). Also surface radon survey is carried before hydraulic break of bed in square 400*400 m with a step of 50 m. There are performed radon indicator surveys to obtain hydro-dynamic characteristics of bed as penetrability and profile of intake. Gamma activity is measured with instrument of BGPC. The bed is hydraulically broken. There are repeated radon survey, radon indicator surveys and measurement of gamma activity with instrument of BGPC. Obtained data are compared and there is determined azimuth location of hydraulic break fractures and penetrability with profile of bed intake.
EFFECT: obtaining reliable hydro-dynamic characteristics of fracture systems formed as result of hydraulic break of bed, simplification of their modelling in space.
1 dwg
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