Baker Hughes Corporation

Kevin Scott Tingler

Ketankumar Kantilal Sheth

John Jay Mack

Earl Bruce Brookbank

Jianzhong Yang

Suresha Roshani O'Bryan

Tauseef Salma

An electrical submersible pump having a pump section with a stack diffusers and a stack of impellers mounted on a rotatable shaft. Flow paths extends through the pump section directed axially and radially within the impellers and diffusers. Vanes define the flow path through each impeller that provide fluid communication with an upstream side of each impeller and an outer circumference. An annular flow diverting hub is provided on a downstream side of each impeller. The hub has an outer surface that curves radially inward, and having a minimum radius proximate its middle portion. The diffusers are annular members coaxially mounted in a housing of the pump section. Passages define the flow path through each diffuser that extend axially along the pump section and radially between an outer and inner circumference of each diffuser. The outer surface of each hub makes up a portion of an associated passage.

Integrated open impeller and diffuser for use with an electrical submersible pump

A method of performing a wellbore operation is disclosed. A device is provided that includes a material that expands from an original shape to an expanded shape when a selected charge is applied to material. The device is placed in the wellbore in the original shape. The selected charge is applied to the material to expand the material, causing a pressure differential across the device in the wellbore. A fluid is supplied into the device to set the device in the wellbore.

Electrically engaged, hydraulically set downhole devices

An electric submersible motor is provided that includes a plurality of rotors and bearings mounted on a shaft, and a stator external to said rotors. A running clearance is located between an inner diameter of the stator and external diameter of the rotors, and includes a lubricating oil that includes a base hydrocarbon oil and a plurality of nanoparticles. Also provided is an improved lubricant oil and method of preparation thereof are provided. The lubricant oil includes a hydrocarbon containing base oil and a plurality of nanoparticles. The nanoparticles may be present in an amount up to 30% by volume.

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Bartlesville, OK, United States of America

Kevin Scott Tingler