Gregory R Nazzal

6419025, Jul 16, 2002

Apr 9, 1999

09/289928

Wilhelmus Christianus Maria Lohbeck - Rijswijk, NL
Timothy John Frank - Houston TX
Robert Joe Coon - Houston TX
Gregory Richard Nazzal - Houston TX

Shell Oil Company - Houston TX

E21B 2900

166380, 166277, 166207

A method of selective plastic expansion of sections of a tubing to create one or more recesses in the tubing with a larger diameter than that of the original tubing in which the tubing is radially symmetrically or asymmetrically expanded at one or more locations by application of a radial force to the interior of the tubing thereby inducing a plastic radial deformation of the tubing and removing said radial force from the interior of the tubing.

7334650, Feb 26, 2008

Feb 2, 2004

10/772217

Richard L. Giroux - Cypress TX, US
Gregory G. Galloway - Conroe TX, US
Tuong Thanh Le - Katy TX, US
Raymond H. Jackson - Spring TX, US
Gregory R. Nazzal - Kingwood TX, US
James C. Swarr - The Woodlands TX, US
David J. Brunnert - Houston TX, US
William M. Beasley - Waller TX, US
Brent J. Lirette - Houston TX, US
Albert C. Odell - Kingwood TX, US
Jim Terry - Houston TX, US
Dave McKay - Stonehaven, GB
Samir Alkhatib - Aberdeen, GB
Mike Wardley - Aberdeen, GB

Weatherford/Lamb, Inc. - Houston TX

E21B 7/20

175 26, 175171, 175 57, 166380

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

7823660, Nov 2, 2010

Oct 31, 2007

11/932430

Richard L. Giroux - Cypress TX, US
Gregory G. Galloway - Conroe TX, US
Tuong Thanh Le - Katy TX, US
Raymond H. Jackson - Spring TX, US
Gregory R. Nazzal - Kingwood TX, US
James C. Swarr - The Woodlands TX, US
David J. Brunnert - Houston TX, US
William M. Beasley - Waller TX, US
Brent J. Lirette - Houston TX, US
Albert C. Odell - Kingwood TX, US
Jim Terry - Houston TX, US
Dave McKay - Stonehaven, GB
Samir Alkhatib - Aberdeen, GB
Mike Wardley - Aberdeen, GB

Weatherford/Lamb, Inc. - Houston TX

E21B 7/08

175 61, 175 73

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

8127868, Mar 6, 2012

Oct 31, 2007

11/932495

Richard L. Giroux - Cypress TX, US
Gregory G. Galloway - Conroe TX, US
Tuong Thanh Le - Katy TX, US
Raymond H. Jackson - Spring TX, US
Gregory R. Nazzal - Kingwood TX, US
James C. Swarr - The Woodlands TX, US
David J. Brunnert - Cypress TX, US
William M. Beasley - Waller TX, US
Brent J. Lirette - Houston TX, US
Albert C. Odell - Kingwood TX, US
Jim Terry - Houston TX, US
Dave McKay - Stonehaven, GB
Samir Alkhatib - Aberdeen, GB
Mike Wardley - Aberdeen, GB

Weatherford/Lamb, Inc. - Houston TX

E21B 10/60

175340, 175393

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

8534379, Sep 17, 2013

Mar 5, 2012

13/412297

Richard L. Giroux - Cypress TX, US
Gregory G. Galloway - Conroe TX, US
Tuong Thanh Le - Katy TX, US
Raymond H. Jackson - Spring TX, US
Gregory R. Nazzal - Kingwood TX, US
James C. Swarr - The Woodlands TX, US
David J. Brunnert - Cypress TX, US
William M. Beasley - Waller TX, US

Weatherford/Lamb, Inc. - Houston TX

E21B 10/66

175 6, 175171

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

8042616, Oct 25, 2011

Sep 30, 2010

12/894433

Richard L. Giroux - Cypress TX, US
Gregory G. Galloway - Conroe TX, US
Tuong Thanh Le - Katy TX, US
Raymond H. Jackson - Spring TX, US
Gregory R. Nazzal - Kingwood TX, US
James C. Swarr - The Woodlands TX, US
David J. Brunnert - Cypress TX, US
William M. Beasley - Waller TX, US
Brent J. Lirette - Houston TX, US
Albert C. Odell - Kingwood TX, US
Jim Terry - Houston TX, US
Dave McKay - Stonehaven, GB
Samir Alkhatib - Aberdeen, GB
Mike Wardley - Aberdeen, GB

Weatherford/Lamb, Inc. - Houston TX

E21B 33/1295

166382, 166384, 166 557

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

61553433, Dec 5, 2000

May 2, 1997

8/848961

Gregory R. Nazzal - Kingwood TX
Gerald D. Lynde - Houston TX

Baker Hughes Incorporated - Houston TX

E21B 2900
E21B 2906

166 55

The present invention provides a downhole cutting tool for cutting materials at a worksite in a wellbore. The cutting tool includes a cutting end that is adapted to discharge a high pressure fluid therefrom. A power unit in the tool includes a plurality of serially arranged pressure stages, wherein each such stage increases the fluid pressure above its preceding stage until the desired high pressure has been obtained. The high pressure fluid is discharged through the cutting end to effect cutting of a material. A pulsar in the tool is provided to pulse the fluid before it is discharged through the nozzle, which enables the use of lower pressure compared to the pressure required without pulsation of the fluid. A control unit controls the position and orientation of the cutting end relative to the material and may be programmed to cut the material according a predetermined pattern provided to the control unit. An imaging device may be included in the downhole cutting tool to obtain images of the worksite prior to and after the cutting operations.

60418605, Mar 28, 2000

Jul 16, 1997

8/893312

Gregory R. Nazzal - Kingwood TX
Paulo S. Tubel - The Woodlands TX
Gerald D. Lynde - Houston TX
John W. Harrell - Spring TX
James V. Leggett - Houston TX

Baker Hughes Incorporated - Houston TX

E21B 4700

16625001

The present invention provides a downhole service tool for imaging a location constituting a work site of interest downhole at which a tool operation is to be performed in a preexisting wellbore and for performing a tool operation at the work site during a single trip of the tool, The downhole service tool includes an imaging device which sensors properties associated with the work site and generates data representative of the work site. The imaging date is transmitted to the surface via a two-way telemetry system. An end work device in the downhole service tool performs the desired tool operation at the desired work site. The service tool images the work site, communicates imaging data to the surface and performs the desired operation during a single trip into the wellbore.