| 摘要 |
A motor cooler for an electrical submersible pump (ESP). The ESP is typically deployed within casing and defines an annular space between the ESP and the casing. The ESP includes a pump having an intake, a motor cooler pump having an output port, a seal section below the motor cooler pump, and a motor located below a well inlet. Fluid is directed downwardly from the motor cooler pump output port to cool the motor. In one example, a shroud directs fluid received from the motor cooler pump output port downwardly past the motor and back up an outside of the shroud. In another example, longitudinal ribs direct flow in an annular space between the ESP and the casing. Fluid from the motor cooler pump output port is directed downwardly between adjacent ribs over a surface of the motor and then back up between another pair of ribs.
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