| Patent | Date |
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Laboratory apparatus and method for evaluating cement performance for a wellbore
Grant 7,296,927 - Reddy , et al. November 20, 2 | 2007-11-20 |
Zeolite-containing cement composition
Grant 7,285,166 - Luke , et al. October 23, 2 | 2007-10-23 |
Foamed cement compositions, additives, and associated methods
Grant 7,255,170 - Chatterji , et al. August 14, 2 | 2007-08-14 |
Set retarder compositions, cement compositions, and associated methods
Grant 7,244,303 - Chatterji , et al. July 17, 2 | 2007-07-17 |
Fluid loss control additives for foamed cement compositions and associated methods
App 20070105995 - Chatterji; Jiten ; et al. | 2007-05-10 |
Apparatus and methods for improved fluid displacement in subterranean formations
App 20070012441 - Heathman; James F. ; et al. | 2007-01-18 |
Well completion spacer fluids containing fibers and methods
Grant 7,143,827 - Chatterji , et al. December 5, 2 | 2006-12-05 |
Well completion spacer fluids containing fibers
App 20060258545 - Chatterji; Jiten ; et al. | 2006-11-16 |
Apparatus and methods for improved fluid displacement in subterranean formations
Grant 7,128,142 - Heathman , et al. October 31, 2 | 2006-10-31 |
Apparatus and methods for improved fluid displacement in subterranean formations
Grant 7,128,149 - Heathman , et al. October 31, 2 | 2006-10-31 |
Laboratory apparatus and method for evaluating cement performance for a wellbore
App 20060225523 - Reddy; B. Raghava ; et al. | 2006-10-12 |
Set retarder compositions, cement compositions, and associated methods
App 20060081155 - Chatterji; Jiten ; et al. | 2006-04-20 |
Apparatus and methods for improved fluid displacement in subterranean formations
App 20060060381 - Heathman; James F. ; et al. | 2006-03-23 |
Apparatus and methods for improved fluid displacement in subterranean formations
App 20060060351 - Heathman; James F. ; et al. | 2006-03-23 |
Foamed cement slurries, additives and methods
Grant 7,013,975 - Chatterji , et al. March 21, 2 | 2006-03-21 |
Foamed cement slurries, additives and methods
Grant 7,008,477 - Chatterji , et al. March 7, 2 | 2006-03-07 |
Set retarder compositions, cement compositions, and associated methods
Grant 7,004,256 - Chatterji , et al. February 28, 2 | 2006-02-28 |
Foamed Cement Slurries, Additives And Methods
App 20060027144 - Chatterji; Jiten ; et al. | 2006-02-09 |
Foamed cement compositions, additives, and associated methods
App 20060016602 - Chatterji; Jiten ; et al. | 2006-01-26 |
Foamed cement slurries, additives and methods
App 20060016601 - Chatterji; Jiten ; et al. | 2006-01-26 |
Methods of cementing in subterranean formations
Grant 6,978,835 - Reddy , et al. December 27, 2 | 2005-12-27 |
Zeolite-containing cement composition
Grant 6,964,302 - Luke , et al. November 15, 2 | 2005-11-15 |
Foamed cement slurries, additives and methods
Grant 6,951,249 - Chatterji , et al. October 4, 2 | 2005-10-04 |
Zeolite-containing cement composition
App 20050204962 - Luke, Karen ; et al. | 2005-09-22 |
Methods and compositions for cementing subterranean zones
Grant 6,843,846 - Chatterji , et al. January 18, 2 | 2005-01-18 |
Evaluating foamed cement under pressure and temperature
Grant 6,829,922 - Patin , et al. December 14, 2 | 2004-12-14 |
Methods and compositions for cementing subterranean zones
App 20040226483 - Chatterji, Jiten ; et al. | 2004-11-18 |
Foamed well cement slurries, additives and methods
Grant 6,797,054 - Chatterji , et al. September 28, 2 | 2004-09-28 |
Well completion spacer fluids containing fibers and methods
App 20040182577 - Chatterji, Jiten ; et al. | 2004-09-23 |
Methods of treating subterranean zones penetrated by well bores
Grant 6,767,867 - Chatterji , et al. July 27, 2 | 2004-07-27 |
Zeolite-containing cement composition
App 20040112600 - Luke, Karen ; et al. | 2004-06-17 |
Evaluating foamed cement under pressure and temperature
App 20040055392 - Patin, Ronald J. ; et al. | 2004-03-25 |
Methods and compositions for cementing subterranean zones
Grant 6,591,910 - Chatterji , et al. July 15, 2 | 2003-07-15 |
Methods of treating subterranean zones penetrated by well bores
App 20030083204 - Chatterji, Jiten ; et al. | 2003-05-01 |
Encapsulated chemicals for use in controlled time release applications and methods
Grant 6,554,071 - Reddy , et al. April 29, 2 | 2003-04-29 |
Foamed well cement slurries, additives and methods
Grant 6,547,871 - Chatterji , et al. April 15, 2 | 2003-04-15 |
Encapsulated chemicals for use in controlled time release applications and methods
Grant 6,527,051 - Reddy , et al. March 4, 2 | 2003-03-04 |
Foamed well cement slurries, additives and methods
App 20030000428 - Chatterji, Jiten ; et al. | 2003-01-02 |
Early-enhanced strength cement compositions and methods
Grant 6,478,868 - Reddy , et al. November 12, 2 | 2002-11-12 |
Encapsulated chemicals for use in controlled time release applications and methods
Grant 6,444,316 - Reddy , et al. September 3, 2 | 2002-09-03 |
Foamed well cement slurries, additives and methods
App 20020096090 - Chatterji, Jiten ; et al. | 2002-07-25 |
Methods and ultra-low density sealing compositions for sealing pipe in well bores
Grant 6,367,549 - Chatterji , et al. April 9, 2 | 2002-04-09 |
Foamed well cement slurries, additives and methods
Grant 6,367,550 - Chatterji , et al. April 9, 2 | 2002-04-09 |
Methods of cementing subterranean zones
Grant 6,227,294 - Chatterji , et al. May 8, 2 | 2001-05-08 |
Controlling the release of chemical additives in well treating fluids
Grant 6,209,646 - Reddy , et al. April 3, 2 | 2001-04-03 |
Apparatus and method for simulating well bore conditions
Grant 6,055,874 - Onan , et al. May 2, 2 | 2000-05-02 |
Cement compositions and biodegradable dispersants therefor
Grant 6,019,835 - Chatterji , et al. February 1, 2 | 2000-02-01 |
Universal well cement additives and methods
Grant 5,972,103 - Mehta , et al. October 26, 1 | 1999-10-26 |
Universal well cement additives and methods
Grant 5,968,255 - Mehta , et al. October 19, 1 | 1999-10-19 |
Container for a fluid to be tested under pressure
Grant 4,823,594 - Gray April 25, 1 | 1989-04-25 |
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