Michael A Forsberg

US Patent:

8537364, Sep 17, 2013

Filed:

Dec 7, 2011

Appl. No.:

13/314010

Inventors:

Ketankumar K. Sheth - Tulsa OK, US
Earl B. Brookbank - Claremore OK, US
Suresha Roshani O'Bryan - Joplin MO, US
Michael Forsberg - Claremore OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

G01N 21/47

US Classification:

356446

Abstract:

A system for monitoring operating parameters for the pump section of an electrical submersible pump. The system includes an optic fiber associated with the pump section of an electrical submersible pump and having a sensor to detect at least one operating parameter within the pump section. The system also includes a signal analyzer operably associated with the optic fiber to receive an optical signal representative of the detected operating parameter.

US Patent:

8616863, Dec 31, 2013

Filed:

Mar 29, 2011

Appl. No.:

13/074865

Inventors:

Michael A. Forsberg - Claremore OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

F04B 17/03
E21B 43/00
F16C 32/06

US Classification:

41742313, 4174233, 41742312, 4174242, 166105, 384100

Abstract:

A submersible pumping system for use downhole, wherein the system includes a pump, a pump motor, a seal section, a shaft coupling the pump motor to the pump, and bearing assemblies for radially retaining the shaft in place that are offset with respect to an axis of the shaft. The offset bearing assemblies produce side loads in the shaft that reduce shaft vibration during use. The bearing assemblies can be a combination of symmetric and asymmetric assemblies set in an alternating pattern along the length of the shaft.

US Patent:

20100143160, Jun 10, 2010

Filed:

Dec 8, 2009

Appl. No.:

12/632883

Inventors:

Michael A. Forsberg - Claremore OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

F04B 39/02
F04B 17/00

US Classification:

417 53, 417321

Abstract:

An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over he circulation tubes.

US Patent:

20120027630, Feb 2, 2012

Filed:

Oct 11, 2011

Appl. No.:

13/270555

Inventors:

Michael A. Forsberg - Claremore OK, US
Ketankumar K. Sheth - Tulsa OK, US
Brown Lyle Wilson - Tulsa OK, US
Donn J. Brown - Broken Arrow OK, US
Dehao David Zhu - Claremore OK, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 47/008
G01N 29/02

US Classification:

4174233, 73 2406

Abstract:

Vibration of an electric submersible pump assembly is monitored to produce a vibration spectrum. The vibration spectrum is compared to a known vibration signature for a pump condition that precedes gas lock. The pump condition is at least one of an impeller rotating stall condition, a diffuser stall condition, a pre-surge condition, and percentage of free gas within the wellbore fluid. Operation of the pump is then adjusted in response to the similarity of the vibration spectrum to the vibration signature for the pump condition to prevent impending gas lock.

US Patent:

20120224985, Sep 6, 2012

Filed:

Feb 16, 2012

Appl. No.:

13/398217

Inventors:

Michael A. Forsberg - Claremore OK, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

F04B 35/04
B21D 53/10

US Classification:

4174101, 29898

Abstract:

A floating ring bearing for an electric submersible pump (ESP) assembly disposable within a cased wellbore and a method to assemble the same are disclosed. The ESP assembly includes a motor, a pump, and a shaft coupling the pump to the pump motor. One or more floating ring bearings are disposed within the motor and the pump, each floating ring bearing circumscribing the shaft to radially support the shaft. A floating ring is disposed within each floating ring bearing. The floating ring circumscribes the shaft so that the floating ring rotates about the shaft in response to rotation of the shaft.

US Patent:

20140079575, Mar 20, 2014

Filed:

Sep 6, 2013

Appl. No.:

14/020034

Inventors:

Michael A. Forsberg - Claremore OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

F04D 29/041

US Classification:

4174233

Abstract:

An electric submersible well pump assembly includes a rotary pump and an electrical motor. The motor has a motor housing filled with a dielectric lubricant. A stator formed of a stack of stator disks with a stator bore is stationarily mounted within the motor housing. A motor shaft extends through the bore. A rotor is mounted to the shaft for rotating the shaft and has a stack of rotor disks. Axially spaced-apart radial stabilizing portions along the rotor have outer peripheries that are greater in outer diameter than remaining portions of the rotor. The outer peripheries of the stabilizing portions rotate with the rotor and are closely spaced to the inner diameter of the stator to radially stabilize the shaft.

US Patent:

20210140436, May 13, 2021

Filed:

Nov 6, 2020

Appl. No.:

17/091686

Inventors:

- Houston TX, US
Michael Forsberg - Claremore OK, US
Risa Rutter - Claremore OK, US
Brett T. Williams - Claremore OK, US

Assignee:

Baker Hughes Oilfield Operations LLC - HOUSTON TX

International Classification:

F04D 13/10
F04D 29/18
F04D 29/54
F04D 29/043

Abstract:

An electrical submersible pump has a stack of diffusers within the housing, each of the diffusers having a conical upper shoulder and a conical lower shoulder. The lower shoulder of each of the diffusers is in abutment with the upper shoulder of an adjacent one of the diffusers. The upper and lower shoulders of each of the diffusers slope downward and outward relative to the axis. Impeller hubs have conical upper and lower ends. At least some of the upper ends of the hubs abut and transfer up thrust to the lower end of an adjacent one of the hubs. At least some of the lower ends of the hubs abut and transfer down thrust to the upper end of an adjacent one of the hubs.

US Patent:

20180051700, Feb 22, 2018

Filed:

Aug 17, 2016

Appl. No.:

15/239721

Inventors:

Ketankumar Sheth - Tulsa OK, US
Michael A. Forsberg - Claremore OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

F04D 15/00
F04D 1/06
F04D 7/02
F04D 13/10
F04D 13/06
F04D 29/22
F04D 29/44
F04D 29/42
E21B 43/12
E21B 43/38

Abstract:

Systems and methods for distributed downhole sensing of operating parameters in an ESP utilizing MEMS sensors. In one embodiment, an ESP is installed in a well. The ESP has a pump, a gas separator, a seal section and a motor. Multiple MEMS sensors are positioned within one or more of the ESP components. Each of the MEMS sensors has a sensor component and on-board circuitry that are formed on a substrate. Each MEMS sensor's sensor component senses a corresponding operating parameter and provides sensed information to the on-board circuitry, which processes the received sensor signal as needed and provides the processed information at an output of the MEMS sensor. The outputs of the different MEMS sensors can be networked together, and the sensor information for the different operating parameters can be communicated to equipment at the surface of the well via a common electrical line.