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Additives for Improving Motor Oil Properties

  • US 20100187925A1
  • Filed: 01/26/2010
  • Published: 07/29/2010
  • Est. Priority Date: 01/26/2009
  • Status: Active Grant
First Claim
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1. A submersible electric motor for down hole use well, the motor comprising:

  • a shaft;

    a plurality of rotors and bearings mounted on said shaft, each rotor comprising a hollow cylinder comprising a stack of laminations, a copper bar and end rings, and wherein each rotor is supported by at least one bearing;

    a stator positioned external to said rotors;

    a running clearance located between an internal diameter of the stator and an outside diameter of the rotor; and

    wherein the motor is filled with an oil;

    wherein the oil comprises a base oil comprising a hydrocarbon and a plurality of nanoparticles suspended in said base oil.

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