David L Carbajal

US Patent:

7278485, Oct 9, 2007

Filed:

Sep 4, 2004

Appl. No.:

10/933560

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 43/00
C09K 8/36
C09K 8/035
C09K 8/04

US Classification:

1663051, 1662441, 166282, 166283, 166285, 507117, 507138

Abstract:

A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.

US Patent:

7439210, Oct 21, 2008

Filed:

Apr 24, 2004

Appl. No.:

10/831668

Inventors:

Gary C. West - Spring TX, US
Ernest Len Grebe - Cypress TX, US
David Carbajal - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/12
C09K 8/24

US Classification:

507120, 175 65, 507225, 507925

Abstract:

An inhibitive water-based polymer mud system and method for using the system in drilling and in stabilizing wellbores is disclosed for use in water sensitive formations as an alternative to oil-based muds. The system comprises a non-ionic low molecular weight polyacrylamide in combination with a non-ionic high molecular weight polyacrylamide, preferably long chain alcohol and poly anionic cellulose.

US Patent:

7456135, Nov 25, 2008

Filed:

Nov 12, 2002

Appl. No.:

10/292124

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US
Ian Robb - Duncan OK, US
Dale E. Jamison - Humble TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/32
B01F 17/00
B01F 3/08

US Classification:

507103, 175 65, 507136, 507138, 507140, 516 21

Abstract:

Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

US Patent:

7462580, Dec 9, 2008

Filed:

Dec 5, 2006

Appl. No.:

11/633822

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US
Ian Robb - Duncan OK, US
Dale E. Jamison - Humble TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/08
B01F 3/08
E21B 21/00

US Classification:

507138, 1662441, 1663051, 166369, 175 65, 507103, 516 53

Abstract:

Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

US Patent:

7488704, Feb 10, 2009

Filed:

Dec 5, 2006

Appl. No.:

11/634008

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US
Ian Robb - Duncan OK, US
Dale E. Jamison - Humble TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/36
E21B 21/00
E21B 43/18

US Classification:

507138, 507103, 507203, 507267, 1662441, 1663051, 166369

Abstract:

Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

US Patent:

7534743, May 19, 2009

Filed:

Dec 5, 2006

Appl. No.:

11/633703

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US
Ian Robb - Duncan OK, US
Dale E. Jamison - Humble TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/36
E21B 21/00

US Classification:

507103, 175 65, 507138, 507136, 507140, 516 21

Abstract:

Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

US Patent:

7547663, Jun 16, 2009

Filed:

Dec 5, 2006

Appl. No.:

11/633704

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US
Ian Robb - Duncan OK, US
Dale E. Jamison - Humble TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

C09K 8/36
E21B 21/00

US Classification:

507103, 175 65, 507136, 507138, 507140, 516 21

Abstract:

Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

US Patent:

7645723, Jan 12, 2010

Filed:

Aug 15, 2007

Appl. No.:

11/893195

Inventors:

Jeff Kirsner - Humble TX, US
Don Siems - Houston TX, US
David Carbajal - Houston TX, US

Assignee:

Halliburton Energy Services - Duncan OK

International Classification:

E21B 21/00
B01F 3/08
C09K 8/32
C09K 8/06

US Classification:

507136, 175 65, 507103, 507138, 507140, 516 21

Abstract:

A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.