Neil A Stegent

US Patent:

7500519, Mar 10, 2009

Filed:

May 20, 2005

Appl. No.:

11/133554

Inventors:

Jim D. Weaver - Duncan OK, US
Billy F. Slabaugh - Duncan OK, US
Diederik van Batenburg - Delft, NL
Mark A. Parker - Marlow OK, US
Matthew E. Blauch - Duncan OK, US
Neil A. Stegent - Cypress TX, US
Philip D. Nguyen - Duncan OK, US
Thomas D. Welton - Duncan OK, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

E21B 43/25
E21B 43/267

US Classification:

166281, 166295, 1663051, 1663082, 507922, 507925

Abstract:

Provided are methods of modifying the stress-activated reactivity of subterranean fracture faces and other surfaces in subterranean formations. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid and a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface in a subterranean formation; introducing the treatment fluid into a subterranean formation; and allowing the surface-treating reagent to modify the stress-activated reactivity of at least a portion of a mineral surface in the subterranean formation.

US Patent:

7580796, Aug 25, 2009

Filed:

Jul 31, 2007

Appl. No.:

11/888277

Inventors:

Mohamed Y. Soliman - Cyress TX, US
Loyd E. East - Tomball TX, US
Neil A. Stegent - Cypress TX, US
Joseph Ansah - Sugar Land TX, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

G01V 9/00

US Classification:

702 11

Abstract:

Methods, computer programs, and systems for evaluating and treating previously-fractured subterranean formations are provided. An example method includes, for one or more of the one or more layers, determining whether there are one or more existing fractures in the layer. The method further includes, for one or more of the one or more existing fractures, measuring one or more parameters of the existing fracture and determining conductivity damage to the existing fracture, based, at least in part, on one or more of the one or more measured parameters of the existing fracture. The method further includes selecting one or more remediative actions for the existing fracture, based, at least in part, on the conductivity damage.

US Patent:

7591313, Sep 22, 2009

Filed:

Jul 12, 2007

Appl. No.:

11/776956

Inventors:

Jim D. Weaver - Duncan OK, US
Billy F. Slabaugh - Duncan OK, US
Diederik van Batenburg - Delft, NL
Mark A. Parker - Marlow OK, US
Matthew E. Blauch - Duncan OK, US
Neil A. Stegent - Cypress TX, US
Philip D. Nguyen - Duncan OK, US
Thomas D. Welton - Duncan OK, US

Assignee:

Halliburton Energy Services, Inc. - Duncan OK

International Classification:

E21B 43/04
E21B 43/22
E21B 43/267

US Classification:

1662802, 166276, 166278, 166295, 1663051, 1663082, 1663083, 507204, 507924

Abstract:

Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of particulates, at least one of which comprises a mineral surface; providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and allowing the surface-treating reagent modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate. In other embodiments, the methods comprise the use of particulates comprising a modified mineral surface in fluids introduced into subterranean formations.

US Patent:

20050269099, Dec 8, 2005

Filed:

Jun 4, 2004

Appl. No.:

10/862000

Inventors:

Neil Stegent - Kilgore TX, US
David Adams - Katy TX, US
Leldon Farabee - Houston TX, US

International Classification:

E21B043/26

US Classification:

166308100

Abstract:

The present invention relates to systems and methods useful in subterranean treatment operations. More particularly, the present invention relates to systems and methods for treating subterranean formations using low-molecular weight treatment fluids. Examples of methods of the present invention include methods of fracturing a subterranean formation; methods of enhancing production from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; methods of enhancing production, in real time, from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; and methods of reducing the cost of enhancing production from multiple subterranean formations penetrated by a well bore by stimulating multiple formations, on a single trip through the well bore, with a fluid that minimizes damage to the formation.

US Patent:

20050269101, Dec 8, 2005

Filed:

Jun 4, 2004

Appl. No.:

10/861829

Inventors:

Neil Stegent - Kilgore TX, US
David Adams - Katy TX, US
Leldon Farabee - Houston TX, US

International Classification:

E21B043/26

US Classification:

166308200, 166308500

Abstract:

The present invention relates to systems and methods useful in subterranean treatment operations. More particularly, the present invention relates to systems and methods for treating subterranean formations using low-molecular-weight fluids. Examples of methods of the present invention include methods for fracturing a portion of a subterranean formation penetrated by a well bore; methods of enhancing production from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; methods of enhancing production, in real time, from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; and methods of reducing the cost of enhancing production from multiple subterranean formations penetrated by a well bore by stimulating multiple formations, on a single trip through the well bore, with a fluid that minimizes damage to the formation.

US Patent:

20050284637, Dec 29, 2005

Filed:

Jun 4, 2004

Appl. No.:

10/860951

Inventors:

Neil Stegent - Kilgore TX, US
David Adams - Katy TX, US
Leldon Farabee - Houston TX, US

International Classification:

E21B043/26

US Classification:

166308100

Abstract:

The present invention relates to systems and methods useful in subterranean treatment operations. More particularly, the present invention relates to systems and methods for treating subterranean formations using low-molecular-weight fluids. Examples of methods of the present invention include methods of treating a subterranean formation intersected by a wellbore; methods of enhancing production from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; methods of enhancing production, in real time, from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; and methods of reducing the cost of enhancing production from multiple formations penetrated by a well bore by stimulating multiple formations, on a single trip through the well bore, with a fluid that minimizes damage to the formation.

US Patent:

20060196661, Sep 7, 2006

Filed:

Mar 7, 2005

Appl. No.:

11/074401

Inventors:

Loyd East - Tomball TX, US
Neil Stegent - Cypress TX, US

International Classification:

E21B 43/02
E21B 43/04

US Classification:

166276000, 166295000, 507925000, 166278000, 166050000

Abstract:

Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a sufficient amount of the gravel matrix composition in the longitudinal portion to enhance the structural support of the longitudinal portion. Optional additives may include curable resins, tackifiers, and/or the incorporation of a degradable material in the gravel matrix composition.

US Patent:

20060260808, Nov 23, 2006

Filed:

May 20, 2005

Appl. No.:

11/133697

Inventors:

Jim Weaver - Duncan OK, US
Billy Slabaugh - Duncan OK, US
Robert Hanes - Oklahoma City OK, US
Diederik van Batenburg - Delft, NL
Mark Parker - Marlow OK, US
Matthew Blauch - Duncan OK, US
Neil Stegent - Cypress TX, US
Philip Nguyen - Duncan OK, US
Thomas Welton - Duncan OK, US

International Classification:

E21B 43/04
C09K 7/02
E21B 43/26
E21B 21/00

US Classification:

166276000, 166278000, 166297000, 175072000, 166308200, 166308300, 507140000, 507127000, 507234000, 507269000, 507904000

Abstract:

Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of particulates, at least one of which comprises a mineral surface; providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and allowing the surface-treating reagent modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate. In other embodiments, the methods comprise the use of particulates comprising a modified mineral surface in fluids introduced into subterranean formations.