FIELD: manufacture of pumps; submersible oil-well pumping units for operation in oil-and-gas producing industry.
SUBSTANCE: proposed pumping unit includes the following components mounted in well on tubing string: submersible pump, submersible electric motor, power cable passed along tubing string and connected on surface to electric motor control station and submersible instrument module with sensors showing the well state parameters and units for conversion of sensor signals, for example pressure sensors and temperature sensors. Instrument module together with sensors and signal conversion units is mounted on tubing string above pump in hermetic compartment made on tubing string. Mounted on external surface of compartment is hermetic electric distributing unit for connecting the power cable to electric motor and to instrument module.
EFFECT: enhanced operational reliability of oil-well pumping unit.
1 dwg
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