Halliburton Energy Services, Inc.

Baker Hughes Corporation

Schlumberger Technology Corporation

Camco International, Inc.

Baker Hughes, a Ge Compnay, LLC

Bakers Hughes Inc.

Ketankumar Kantilal Sheth

Donn Jason Brown

Robert Charles De Long

Casey Laine Newport

Suresha Roshani O'Bryan

Trevor Alan Kopecky

Earl Bruce Brookbank

Brown Lyle Wilson

Risa Rutter

David Christopher Beck

Michael Forsberg

Steven Keith Tetzlaff

John L Bearden

Andre Joseph Bernier

Gerald Glen Goshorn

Brooks A Childers

Roger Glen Duncan

Steven L Anyan

Robert M Harman

John David Rowatt

Dezhi Zheng

Philippe Legrand

Fred S Martin

Michael W Miller

Malcolm S Laing

Randy Louis Mathes

Thurkral Mandeep

Suresha R O'bryan

Christopher Michael Jones

Bin Dai

Etienne M Samson

John Knapp

Sean A Cain

Jason Eugene Hill

Jianzhong Yang

Diego A Narvaez

Tauseef Salma

Woon Yung Lee

Thomas N Hendryx

William B Newberry, Jr

Dehao David Zhu

Kevin Scott Tingler

Ryan Anthony Lack

William F Pranger

Thien Q Tran

Janet Savarimuthu

Dwight Cameron Chilcoat

James Milton Parmeter

Randy Louis Mathes, Ii

Mike Forsberg

Kevin S Tingler

Robert C De Long

A rotating machine. The rotating machine comprises a tubular housing; a drive shaft disposed at least partly inside the tubular housing; a component disposed inside of the tubular housing that is coupled to the drive shaft and configured to do work as the drive shaft rotates; and a shaft stop assembly coupled to the drive shaft comprising a collet disposed around the drive shaft, a compressor flange disposed around the collet and around the drive shaft and engaging with the collet to compress the collet to form a friction fit with the drive shaft, and a compression stop disposed around the compressor flange and around the drive shaft, wherein a first axial end of the compression stop abuts an end of the collet.

Mechanical shaft stop in a rotating machine

A gas separator for an electric submersible pump includes an inlet, an outlet, and a first portion including a first inner circumferential surface and a first outer circumferential surface having a first diameter. The first portion is disposed between the inlet and the outlet. The gas separator further includes a second portion including a second inner circumferential surface and a second outer circumferential surface having a second diameter. The second portion is disposed between the first portion and the outlet. The first diameter is less than the second diameter.

Gas separator for electric submersible pump

A downhole gas separator assembly. The gas separator comprises a drive shaft; a first fluid mover mechanically coupled to the drive shaft having a fluid inlet and a fluid outlet; a fluid reservoir concentrically disposed around the drive shaft and located downstream of the first fluid mover, wherein an inside surface of the fluid reservoir and an outside surface of the drive shaft define a first annulus that is fluidically coupled to the fluid outlet of the first fluid mover; a second fluid mover having a fluid inlet and a fluid outlet, wherein the second fluid mover is located downstream of the fluid reservoir, and wherein the fluid inlet of the second fluid mover is fluidically coupled to the first annulus; and a gas flow path and liquid flow path separator having a gas phase discharge port open to an exterior of the assembly and a liquid phase discharge port.

Electric submersible pump (ESP) gas slug processor and mitigation system

A fluid flow rate sensor. The fluid flow rate sensor comprises an elongated structure; a heating element installed into a first end of the elongated structure; a first temperature transducer coupled to an outside of the elongated structure at a first predefined location; a second temperature transducer coupled to the outside of the elongated structure at a second predefined location; and a control unit that is configured to turn the heating element on and off, to analyze a first temperature indication received from the first temperature transducer, to analyze a second temperature indication received from the second temperature transducer, to determine a flow rate of a fluid that is in intimate contact with the outside of the elongated structure based on analyzing the first temperature indication and the second temperature indication, and to output the flow rate via a communication line.

System and method of determining reservoir fluid flow condition and composition downhole

An electrical submersible pump (ESP) assembly. The ESP assembly comprises an electric motor having a first drive shaft; a seal section having a second drive shaft that is coupled to the first drive shaft; a third drive shaft that is coupled to the second drive shaft; and an axial flow centrifugal pump stage, wherein the centrifugal pump stage comprises an impeller coupled to the third drive shaft and a diffuser, wherein the impeller defines a plurality of impeller vanes attached between an impeller hub and an impeller shroud, wherein the impeller shroud is a straight-walled cylindrical shape, wherein the diffuser defines a plurality of diffuser vanes attached between a diffuser hub and a diffuser shroud, and wherein the diffuser shroud is a straight-walled cylindrical shape.

High volume axial flow electric submersible pump (ESP) pump stage

An electric submersible pump (ESP) assembly comprising an electric motor, a seal section disposed uphole of the electric motor, a gas separator disposed uphole of the seal section, a downhole transmission assembly disposed uphole of the gas separator, comprising a flow passage fluidically coupled to a liquid phase discharge port of the gas separator, a first drive shaft coupled to a drive shaft of the gas separator, a second drive shaft, and a transmission that mechanically couples the first drive shaft to the second drive shaft, wherein the transmission is configured to turn the second drive shaft at a slower angular speed than the angular speed of the first drive shaft, and a centrifugal pump assembly disposed uphole of the downhole transmission assembly, having a fluid inlet coupled to a fluid outlet of the downhole transmission assembly, and having a drive shaft coupled to the second drive shaft.

Downhole transmission with wellbore fluid flow passage

An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor; a seal section coupled to the electric motor; a fluid intake coupled to an uphole end of the seal section, wherein the fluid intake defines a plurality of inlet ports; a gas separator comprising a plurality of gas phase discharge ports, and at least one liquid phase discharge port, wherein the gas separator is located uphole of the fluid intake; a centrifugal pump comprising a fluid inlet at a downhole end, wherein the at least one liquid phase discharge port of the gas separator is fluidically coupled to the fluid inlet of the centrifugal pump; and an inverted shroud assembly, wherein a downhole end of the inverted shroud assembly is coupled to an outside of the gas separator downhole of the gas phase discharge ports of the gas separator and uphole of the fluid intake.

Electric submersible pump (ESP) shroud system

A downhole gas separator fluid mover assembly comprising a fluid mover having an inlet and an outlet, a separation device, a separation chamber, and a flow path separator located downstream of the fluid mover. The fluid mover comprising a centrifugal pump stage with an impeller and a diffuser moves production fluid comprising a high viscosity fluid portion and a gas portion to the separation device. The separation device produces a fluid motion that separates the gas phase from the liquid phase in response to the flow rate of production fluid from the fluid mover. A portion of the high viscosity fluid passes through the gas phase discharge port in response to the over-supply of high viscosity fluid to the liquid discharge port in response to the flow rate of the production fluid through the fluid mover.

Electric submersible pump with improved gas separator performance in high viscosity applications

An electric submersible pump (ESP) assembly. The ESP assembly comprises a centrifugal pump, an electric motor mechanically coupled by a drive shaft to the centrifugal pump, wherein the electric motor comprises a stator and a rotor, a bearing, wherein the bearing is disposed inside the electric motor, and a magnetic shield disposed in the electric motor between bearing and the rotor and stator.

Shielding for a magnetic bearing in an electric submersible pump (ESP) assembly

An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor; a seal section coupled to an uphole end of the electric motor; a fluid intake coupled to an uphole end of the seal section, wherein the fluid intake defines a plurality of inlet ports; a gas separator coupled to an uphole end of the fluid intake, wherein the gas separator has a plurality of gas phase discharge ports; a pump assembly coupled to an uphole end of the gas separator; and an intake extension tubular, wherein an uphole end of the intake extension tubular is coupled to the fluid intake uphole of the inlet ports, and wherein an annulus defined between an inside of the intake extension tubular and an outside of the seal section defines a fluid flow path from a downhole end of the intake extension tubular to the inlet ports of the fluid intake.

Electric submersible pump (ESP) assembly fluid intake extension

Provided, in one aspect, is a spin control valve assembly, comprising a stationary valve plate having a first stationary valve plate opening and a second stationary valve plate opening; and a rotating valve plate coupled longitudinally adjacent to the stationary valve plate, the rotating valve plate having a rotating valve plate opening, wherein the rotating valve plate is configured to rotate among at least three positions such that at each position of the at least three positions fluid flows at a different flow rate through the spin control valve assembly.

Anti-spin control for an electric submersible pump permanent magnet motor

An electric submersible pump (ESP) assembly that includes an electric motor with a splined drive shaft with drive shaft teeth, an ESP mechanically coupled to the electric motor that includes a splined ESP shaft with ESP shaft teeth, and a downhole component mechanically coupled to the electric motor that includes a splined component shaft with component shaft teeth. Splined couplings each include a central axis and grooves through the coupling with groove sidewalls sized to receive the shaft teeth. The grooves are angled relative to the central axis to form a space on either side of each tooth in each groove for at least a portion of the overlapped length of the tooth within the groove. Each coupling is engageable with the teeth of two of the drive shaft, the pump shaft, or the component shaft to mechanically couple the electric motor, the ESP, and the downhole component.

Electric submersible pump (ESP) assembly with load absorbing coupling

A downhole gas separator and pump assembly. The downhole gas separator and pump assembly comprises a drive shaft; a first fluid mover having an inlet and an outlet; a separation chamber located downstream of the first fluid mover and fluidically coupled to the outlet of the first fluid mover; a gas flow path and liquid flow path separator located downstream of the separation chamber, having an inlet fluidically coupled to the separation chamber, having a gas phase discharge port open to an exterior of the assembly, and having a liquid phase discharge port; and a second fluid mover mechanically coupled to the drive shaft, located downstream of the first gas flow path and liquid flow path separator, and having an inlet fluidically coupled to the fluid phase discharge port of the first gas flow path and liquid flow path separator.

Integrated gas separator and pump

A downhole integral gas separator and pump assembly, The assembly comprises a drive shaft; a separation chamber concentrically disposed around the drive shaft; a gas flow path and liquid flow path separator having a gas phase discharge port open to an exterior of the assembly, and having a liquid phase discharge port; a fluid mover mechanically coupled to the drive shaft having an inlet fluidically coupled to the liquid phase discharge port of the gas flow path and liquid flow path separator, and having an outlet; a housing that retains the drive shaft, the gas flow path and liquid flow path separator, and the fluid mover; and a pump discharge coupled to a downstream end of the housing, wherein the pump discharge is fluidically coupled to the outlet of the fluid mover and is configured to connect to a production tubing.

Integral gas separator and pump

Growing community of inventors

Tulsa, OK, United States of America

Ketankumar Kantilal Sheth