| 摘要 |
FIELD: geophysics.SUBSTANCE: invention relates to nuclear geophysics, and more specifically to nuclear-physical determination of density of rocks crossed by drilling well, instruments, delivered to interval of survey on drilling tool. Device for radioactive logging with delivery to interval of investigation on drill tool comprises housing of downhole instrument, in which there are collimation openings for passage of gamma-radiation, where container with radiation source and sealed housing electronic unit with detectors of gamma-radiation and electronic circuits are located, wherein container for arrangement of gamma-radiation source and in housing of downhole instrument there are side channels for installation and fixation of radioactive emission source in container on side of side surface of device.EFFECT: technical result is reduction of radiation of service personnel.1 cl, 1 dwg |
