FIELD: oil and gas industry.
SUBSTANCE: device contains a submersible pump with a submersible motor, installed in the borehole at the pipe string. The electric power cable passes along the pipe string, connected at the surface to the submersible unit operation control station with state parameters sensors, such as pressure and temperature and sensors signal conversion unit, mounted on the pipe string in the sealed instrumental compartment. The power cable is connected to the submersible motor and submersible instrumental module. The outer surface of the instrumental module is formed with the variable cross section and forms with the borehole casing string inner wall profile the Venturi tube. There are the pressure taps of the overflowing borehole fluid at the tube neck and the diffuser between the casing string inner wall and the outer surface of the instrumental module. The pressure taps are connected to the differential pressure gauge, installed in the sealed instrumental compartment and connected to the signal conversion device. By means of this device it is possible to calculate the flow rate of the borehole overflowing fluid between the inner wall of the casing string and the outer surface of the instrumental module based on the differential pressure gauge.
EFFECT: functionality expansion of the submersible instrumentatal module of borehole state parameters sensors, installed together with the submersible pump by allowing more accurate measurements.
1 dwg
