Annular flow restrictor for electrical submersible pump

Details Annular flow restrictor for electrical submersible pump Annular flow restrictor for electrical submersible pump

E - Fixed Constructions

21

B

E21B 43/12 (2006.01)

Patent

CA 2357620

A method of pumping well fluid from a well having casing with perforations includes connecting an electrical motor to a lower end of a pump and securing the pump to tubing. A restrictor is mounted to the tubing above the pump, the restrictor having a restrictor passage. The well annulus contains a well fluid with a static level under static conditions. When the motor is started to cause the pump to operate, downward flow of well fluid contained in the well annulus flows through the restrictor passage. This reduces the amount of downward flow to increase well fluid flow through the perforations.

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