Baker Hughes Corporation

Baker Hughes, a Ge Compnay, LLC

Michael R Rumbaugh

Jeffrey G Frey

Jim F Evenson

David G Korte

Jackson Reynolds

David W Livingston

Ryan P Semple

John Knapp

James Christopher Clingman

Carlos A Prieto

Sean A Cain

Dan A Merrill

Chad A Craig

Kevin J Gilmore

Larry A Parmeter

Jackson E Reynolds

Systems and methods for protecting motor lead from debris and fluid contamination. In one embodiment, detachable, flexible lead wires within an ESP motor are covered by protective sleeves that are sealed against the end connectors of the leads. The end connectors are coupled to corresponding terminals in an epoxy fixture of the motor and a motor head in a manner that provides a seal between them. The sealed sleeve and end connectors prevent debris and contaminants in the fluid within the motor from reaching the conductive elements of the motor leads, thereby preventing accumulations of debris and contaminants that could otherwise cause electrical faults.

Systems and methods for preventing electrical faults associated with motor leads

An electrical submersible pump assembly has a motor that drives the pump. The motor has a stator having a bore, a shaft extending through the stator, and rotor sections mounted to the shaft, each of the rotor sections having first and second end rings. A non rotating bearing body has a periphery retained in non rotating engagement with the bore of the stator. The bearing body has a first end axially spaced from the first end ring, defining a first gap, and a second end axially spaced from the second rotor ring, defining a second gap. A first thrust washer is located in the first gap. Each thrust washer has a metal or carbide thrust surface for contact with the bearing body and an elastomeric thrust surface for contact with one of the end rings.

Radial bearing thrust washer arrangement for submersible pump motor

A submersible well pump assembly has a pump and an electrical motor for driving the pump. The motor has an electrical receptacle with a base and a central bore containing a plurality of motor electrical terminals. An annular groove in the base encircles the central bore and has a closed bottom. A motor lead extends to the motor for supplying power to the motor. An electrical connector on an end of the motor lead has a rim that inserts into the groove. Either the forward edge of the rim or the bottom of the groove is conical, defining an annular void within the groove that is triangular in cross section when the rim is fully inserted into the groove. A seal ring is located in the void of the groove and is deformed by the forward edge of the rim into sealing engagement.

Crushed seal arrangement for motor electrical connection of submersible well pump

In aspects, the present disclosure provides an apparatus for handling axial thrust in rotating equipment. The apparatus may include a thrust bearing and a runner having a contact surface engaging the thrust bearing. The runner may include passages extending between the contact surface and an opposing surface of the runner. The apparatus may further include a lock ring assembly that has channels in communication with the passages of the runner. In certain embodiments, one or more cavities may be formed on the contact surface of the runner. The cavities may be in communication with the internal passages of the runner. In aspects, the present disclosure provides a method for handling axial thrust in a pump assembly. The pump assembly may include a thrust bearing assembly that may include a runner having a contact surface engaging a thrust bearing pad. The method may include flowing a lubricating fluid to the contact surface using at least one internal passage formed in runner.

Runner with integral impellor pump

Systems and methods for the construction of electric motors, where expandable material is inserted into the slots in which magnet wires are positioned and expanded in the slots to mechanically restrain the wires. One embodiment comprises a downhole electric motor such as might be used in an electric submersible pump (ESP) system. The motor has a stator with multiple slots in which magnet wires are positioned. A slot liner is positioned in each slot and an expansion pad is positioned in each slot between the slot liner and the slot wall nearest the bore of the stator. The wires are positioned inside the slot liner. When the motor is almost completely assembled, it is filled with oil. Some of the oil is absorbed by the expansion pads, which then expand to fill the unoccupied volume in the slots, thereby restraining the movement of the wires within the slots.

Systems and methods for wire containment within an electric motor

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.

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Claremore, OK, United States of America

Michael R Rumbaugh