Technical conditions: well fluid viscosity ≤ 80,000 centipoise (take viscosity reduction measures); suction port pressure under the total volume of three-phase total volume of 0-30% Advantages: increase the flow rate through the submersible motor shaft fluid, is conducive to cooling the submersible motor and extend the operating life of the entire unit; reduce the gas into the centrifugal pump, to prevent air lock, to ensure the normal operation of submersible pump unit The installation of a single casing。
Technical conditions:
The viscosity of the fluid is less than or equal to 80,000 centipoise (take the viscosity reduction measures); the total amount of gas in the inlet pressure accounts for 0-30% of the total volume of the three phases,
advantage:
Increase the flow rate of the flow through the submersible motor, help to cool the submersible motor and extend the operating life of the whole unit; reduce the gas into the centrifugal pump, to prevent air lock, to ensure the normal operation of submersible pump unit ; In a single casing bottom sealed pocket wells installed with shield submersible pump unit, low pressure water can be implemented without leakage pressurized water injection.
Application situation:
In 1998, Dagang Oilfield was the first to use our three sets of shield submersible pumps for the successful production of low-grade heavy oil wells, and then the hood submersible pump units were widely used in several other areas.
