Brian C Llewellyn

US Patent:

7743830, Jun 29, 2010

Filed:

Oct 10, 2008

Appl. No.:

12/249852

Inventors:

Robert E. Hermes - Los Alamos NM, US
Manuel E. Gonzalez - Kingwood TX, US
Brian C. Llewellyn - Kingwood TX, US
James B. Bloys - Katy TX, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Los Alamos National Security - Los Alamos NM

International Classification:

E21B 33/13
E21B 36/00
E21B 43/00

US Classification:

166288, 166292, 166302, 166371, 507269, 507271

Abstract:

A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

US Patent:

7870905, Jan 18, 2011

Filed:

Mar 12, 2010

Appl. No.:

12/723528

Inventors:

Robert E. Hermes - Los Alamos NM, US
Manuel E. Gonzalez - Kingwood TX, US
Brian C. Llewellyn - Kingwood TX, US
James B. Bloys - Katy TX, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Los Alamos National Security, LLC - Los Alamos NM

International Classification:

E21B 33/13
E21B 36/00
E21B 43/00

US Classification:

166302, 166295, 166371, 507231

Abstract:

A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

US Patent:

7950460, May 31, 2011

Filed:

Dec 17, 2009

Appl. No.:

12/641272

Inventors:

Robert E. Hermes - Los Alamos NM, US
Manuel E. Gonzalez - Kingwood TX, US
Brian C. Llewellyn - Kingwood TX, US
James B. Bloys - Katy TX, US
Don M. Coates - Santa Fe NM, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Los Alamos National Security, LLC - Los Alamos NM

International Classification:

E21B 33/13
E21B 36/00
E21B 43/00

US Classification:

166302, 166371, 507266, 507902

Abstract:

A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

US Patent:

7963333, Jun 21, 2011

Filed:

Dec 17, 2009

Appl. No.:

12/641257

Inventors:

Robert E. Hermes - Los Alamos NM, US
Manuel E. Gonzalez - Kingwood NM, US
Brian C. Llewellyn - Kingwood TX, US
James B. Bloys - Katy TX, US
Don M. Coates - Santa Fe NM, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Los Alamos National Security LLC - Los Alamos NM

International Classification:

E21B 33/13
E21B 36/00
E21B 43/00

US Classification:

166300, 166302, 166371, 507260, 507271, 507902

Abstract:

A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

US Patent:

8077053, Dec 13, 2011

Filed:

Mar 31, 2006

Appl. No.:

11/394186

Inventors:

M. Clark Thompson - Los Alamos NM, US
Koby Carlson - Hobbs NM, US
Don M. Coates - Santa Fe NM, US
Manuel E. Gonzalez - Kingwood TX, US
Brian C. Llewellyn - Kingwood TX, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

E21B 43/00

US Classification:

3408557, 3408531, 3408533, 1662525, 367 32, 367 81

Abstract:

An apparatus and method are disclosed for sensing a characteristic of a borehole. An exemplary apparatus includes a conductive pipe; an inlet, connected to the conductive pipe, for applying pulse to the conductive pipe; a resonant network device connected with the conductive pipe; and a transducer which is in operative communication with the resonant network device to measure a borehole characteristic, the transducer being configured to sense a modulated vibration frequency induced in the resonant network device when a pulse is applied to the inlet.

US Patent:

20070114033, May 24, 2007

Filed:

Nov 18, 2005

Appl. No.:

11/282424

Inventors:

Robert Hermes - Los Alamos NM, US
Manuel Gonzalez - Kingwood TX, US
Brian Llewellyn - Kingwood TX, US
James Bloys - Katy TX, US
Don Coates - Santa Fe NM, US

International Classification:

E21B 33/13
E21B 43/00

US Classification:

166295000, 166292000, 166371000

Abstract:

A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

US Patent:

20140158353, Jun 12, 2014

Filed:

May 16, 2013

Appl. No.:

13/896242

Inventors:

Sujin Yean - Houston TX, US
Darrell Lynn Gallup - Meridian ID, US
Lyman Arnold Young - Oakland CA, US
Russell Evan Cooper - Martinez CA, US
Matthew Bernard Zielinski - Missouri City TX, US
Mark Anthony Emanuele - Bellaire TX, US
Brian Christopher Llewellyn - Kingwood TX, US
Dennis John O'Rear - Petaluma CA, US

International Classification:

E21B 43/38
E21B 43/40
E21B 43/34
E21B 43/16
E21B 43/26

US Classification:

166266, 166271

Abstract:

Methods and systems relate to the in-situ removal of heavy metals such as mercury, arsenic, etc., from produced fluids such as gases and crudes from a subterranean hydrocarbon-bearing formation. A sufficient amount of a fixing agent is injected into formation with a dilution fluid. The fixing agent reacts with the heavy metals forming precipitate, or is extracted heavy metals into the dilution fluid as soluble complexes. In one embodiment, the heavy metal precipitates remain in the formation. After the recovery of the produced fluid, the dilution fluid containing the heavy metal complexes is separated from the produced fluid, generating a treated produced fluid having a reduced concentration of heavy metals. In one embodiment, the dilution fluid is water, and the wastewater containing the heavy metal complexes after recovery can be recycled by injection into a reservoir.

US Patent:

20140151040, Jun 5, 2014

Filed:

May 16, 2013

Appl. No.:

13/896255

Inventors:

Sujin Yean - Houston TX, US
Darrell Lynn Gallup - Meridian ID, US
Lyman Arnold Young - Oakland CA, US
Russell Evan Cooper - Martinez CA, US
Matthew Bernard Zielinski - Missouri City TX, US
Mark Anthony Emanuele - Bellaire TX, US
Brian Christopher Llewellyn - Kingwood TX, US
Dennis John O'Rear - Petaluma CA, US

International Classification:

E21B 43/38
E21B 43/40
E21B 43/34
E21B 43/16
E21B 43/26

US Classification:

166266, 166268, 166275, 166271

Abstract:

Methods and systems relate to the in-situ removal of heavy metals such as mercury, arsenic, etc., from produced fluids such as gases and crudes from a subterranean hydrocarbon-bearing formation. A sufficient amount of a fixing agent is injected into formation with a dilution fluid. The fixing agent reacts with the heavy metals forming precipitate, or is extracted heavy metals into the dilution fluid as soluble complexes. In one embodiment, the heavy metal precipitates remain in the formation. After the recovery of the produced fluid, the dilution fluid containing the heavy metal complexes is separated from the produced fluid, generating a treated produced fluid having a reduced concentration of heavy metals. In one embodiment, the dilution fluid is water, and the wastewater containing the heavy metal complexes after recovery can be recycled by injection into a reservoir.