Thomas Heinold

US Patent:

7191663, Mar 20, 2007

Filed:

Dec 12, 2003

Appl. No.:

10/734873

Inventors:

Virgilio Go Boncan - Spring TX, US
Murray J. Rogers - Houston TX, US
Thomas Heinold - Houston TX, US
Robert L. Dillenbeck - Spring TX, US

Assignee:

BJ Services Company - Houston TX

International Classification:

G01N 3/00

US Classification:

73803

Abstract:

A method of testing and a tester apparatus to determine the axial stress and strain of cements under the temperature and pressures encountered by cement during use in wellbore environments. Using these stress and strain measurements, the Young's Modulus may be established for a material at the encountered temperature and pressure of the wellbore. By combining static tensile strength testing and elasticity measurements of cements, Young's Modulus values for different cement compositions under stresses that are similar to the conditions occurring in an actual wellbore are possible.

US Patent:

20050166803, Aug 4, 2005

Filed:

Dec 16, 2004

Appl. No.:

11/013931

Inventors:

Robert Dillenbeck - Spring TX, US
Thomas Heinold - Houston TX, US
Murray Rogers - Houston TX, US
Windal Bray - Cypress TX, US

Assignee:

BJ Services Company - Houston TX

International Classification:

C04B014/00

US Classification:

106814000, 106810000, 106809000, 106806000, 106708000, 106641000, 106733000, 106801000

Abstract:

The storable, low-density, hydraulically-active, cementitious slurry of the invention is suitable for cementing within a subterranean formation for oil or gas wells. The low-density slurry comprises a hydraulically-active cementitious material, a set retarder, a plasticizer, glass or ceramic micro-spheres, and a strengthening agent. Further the slurry is substantially free of a suspension agent. The storable, low-density, hydraulically-active, cementitious slurry is made by adding glass or ceramic micro-spheres to a hydraulically-active cementitious material, adding a strengthening agent to the microsphere containing composition, and mixing the resulting composition with water, a set retarder, and a plasticizer to generate a slurry, wherein the set retarder is present in an amount sufficient to allow storage of the slurry.

US Patent:

20060278024, Dec 14, 2006

Filed:

Jun 23, 2006

Appl. No.:

11/473491

Inventors:

Virgilio Boncan - Spring TX, US
Murray Rogers - Houston TX, US
Thomas Heinold - Houston TX, US
Robert Dillenbeck - Spring TX, US

Assignee:

BJ SERVICES COMPANY - Houston TX

International Classification:

G01L 1/22

US Classification:

073862627

Abstract:

A method of testing and a tester apparatus to determine the axial stress and strain of cements under the temperature and pressures encountered by cement during use in wellbore environments. Using these stress and strain measurements, the Young's Modulus may be established for a material at the encountered temperature and pressure of the wellbore. By combining static tensile strength testing and elasticity measurements of cements, Young's Modulus values for different cement compositions under stresses that are similar to the conditions occurring in an actual wellbore are possible.

US Patent:

6832652, Dec 21, 2004

Filed:

Aug 22, 2003

Appl. No.:

10/646147

Inventors:

Robert L. Dillenbeck - Spring TX
Thomas Heinold - Houston TX
Murray J. Rogers - Houston TX
Windal S. Bray - Cypress TX

Assignee:

BJ Services Company - Houston TX

International Classification:

E21B 3313

US Classification:

166293, 106705

Abstract:

The storable, low-density, hydraulically-active, cementitious slurry of the invention is suitable for cementing within a subterranean formation for oil or gas wells. The low-density slurry comprises a hydraulically-active cementitious material, a set retarder, a plasticizer, glass or ceramic micro-spheres, and a strengthening agent. Further the slurry is substantially free of a suspension agent. The storable, low-density, hydraulically-active, cementitious slurry is made by adding glass or ceramic micro-spheres to a hydraulically-active cementitious material, adding a strengthening agent to the microsphere containing composition, and mixing the resulting composition with water, a set retarder, and a plasticizer to generate a slurry, wherein the set retarder is present in an amount sufficient to allow storage of the slurry.