Patent ID: 9638014
Date: 2017-05-02
CPC Classifications: E21B,F04D

Claim:
1. A well pump assembly, comprising: a rotary pump having a pump intake and a discharge above the pump intake for connection to a string of production tubing; a submersible motor operatively engaged with the pump below the pump for driving the pump; a shroud surrounding the pump intake and the motor, the shroud having an open upper end in fluid communication with the pump intake for drawing well fluid along an upper flow path down the shroud into the pump intake; a dip tube secured to and extending downward from a junction with a lower end of the shroud, the dip tube being in fluid communication with the pump intake and having an open lower end for drawing well fluid along a lower flow path up the dip tube to the pump intake; and wherein the upper flow path has a minimum flow area that is smaller than a minimum flow area of the lower flow path.