ISOLATED THRUST CHAMBER FOR ESP SEAL SECTION
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United States of America Patent
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Issued Date -
Nov 9, 2017
app pub date -
Dec 3, 2014
filing date -
Dec 3, 2014
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Abstract
An electric submersible pumping system for use in pumping fluids from a wellbore includes a motor that is filled with a motor lubricant, a pump driven by the motor, a thrust chamber connected between the motor and the pump, and a seal section. The thrust chamber is filled with thrust chamber lubricant and the motor and seal section are filled with motor lubricant. To prevent the mixing of the thrust chamber lubricant with the motor lubricant, the thrust chamber is in fluid isolation from the motor and the seal section. The electric submersible pumping system may include an upper seal section, a lower seal section or both upper and lower seal sections.
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