DEVICE FOR RESEARCHING CONCRETE RING BEHIND CASING COLUMN IN WELLS

摘要

FIELD: geophysics.;SUBSTANCE: device has lead screen, separated on moving and fixed portions. Hollow shaft is held in body of device. On hollow shaft cylindrical frame is mounted, in which lead screen is held with sector collimation window. Device also has balanced load, position sensor, additional fixed screen, detector, electric drive.;EFFECT: broader functional capabilities.;3 cl, 2 dwg