Baker Hughes Corporation

Jim F Evenson

Michael R Rumbaugh

Jackson Reynolds

David G Korte

David H Neuroth

Sean A Cain

Larry James Parmeter

Jeffrey G Frey

Van J McVicker

Chad A Craig

David W Livingston

Jackson E Reynolds

Peter Francis Lawson

Jeffrey Frey

David Neuroth

Michael Rumbaugh

A submersible well pump motor has features to prevent the carrier bearing from sliding axially along the stator due to thermal growth of the rotor. The rotor has a shaft and rotor sections spaced apart from each other. Carrier bearings are located between the rotor sections, each having an anti-rotation member that frictionally engages the inner diameter of the stator to prevent spinning of the carrier bearing. A deflectable thrust washer may be located between ends of the carrier bearing and the rotor sections. The thrust washer reduces in thickness in response to an axial thermal growth force due to axial thermal growth movement of the rotor sections and shaft. The thermal growth force is less than an amount of dislodging force required to cause the anti-rotation member to axially move relative to the stator. Rather than deflectable thrust washers, sacrificial thrust washers that dissolve prior to normal operation may be used.

Non-sliding carrier bearing in submersible pump motor and method of installation

Electric submersible well pumping systems operable in well temperatures of above about 180&#xb0; C. (356&#xb0; F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE film surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.

Electrical submersible pump system having high temperature slot, end bell and phase-to-phase insulation

Electric submersible well pumping systems operable in well temperatures of above about 180&#xb0; C. (356&#xb0; F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The magnet wires in the stator have lead portions that extend The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.

Electrical submersible pump system having improved magnet wire leads

Electrical submersible pump system having high temperature insulation materials

Electrical submersible pump system having high temperature insulation materials and buffered lubricant

Method of assembling and operating a submersible pump motor

A system and method is provided for heating fluid to be pumped by an electrical submersible pumping system. Heat for heating the fluid may be inductively generated by adjusting the power delivered to the motor of the pumping system. In one example, the power adjustment includes supplying the voltage applied to the pump motor to a value less than voltage applied during normal operations. While lowering the voltage the electrical frequency may be varied as well as the electrical waveform.

Method of heating sub sea ESP pumping system

A submersible pump motor having an electroless nickel-boron coating applied to the sleeve and/or bearing.

ESP motor design

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Claremore, OK, United States of America

Jim F Evenson