FIELD: mining industry. SUBSTANCE: this relates to non-destructive testing procedure and can be used in drilling prospecting and productive wells. Device allows at early stage to determine type of behavior of productive oil bed and reduce probability of emergency situations. Device has sensors installed in technological circuit of drill mud circulation. First temperature sensor, first sensor of specific electric resistance, viscosity sensor, and first neutron-gamma sensor of salinity are installed at inlet to well in reservoir. First flow rate sensor, first gamma sensor of density and first neutron sensor of mass proportion of liquid phase are installed in pipeline at inlet to well. Second flow rate sensor, second gamma sensor of density and second neutron sensor of mass proportion of liquid phase are installed at outlet from well before purification system. Installed after purification system are second sensor of specific electrical resistance, second temperature sensor, third gamma sensor of density, and third neutron sensor of mass proportion of liquid phase. Outputs of all sensors are connected through commutator with microcomputer and its output is connected to indication unit. EFFECT: high velocity. 4 dwg
