Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2005-10-11
2005-10-11
Bagnell, David (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S293000, C166S294000, C106S727000, C106S728000, C106S802000, C106S808000, C106S810000, C106S823000
Reexamination Certificate
active
06953090
ABSTRACT:
Methods of cementing subterranean zones using cement compositions containing biogradable dispersants are provided. The methods are basically comprised of the steps of preparing a hydraulic cement, a biodegradable dispersant comprised of polyaspartic acid containing side chains formed by reacting one or more side chain chemicals with said polyaspartic acid and sufficient water to form a pumpable slurry, placing the cement composition into a zone to be cemented and allowing the cement composition to set into an impermeable solid mass therein.
REFERENCES:
patent: 3359225 (1967-12-01), Welsend
patent: 3937282 (1976-02-01), Shryock et al.
patent: 4028125 (1977-06-01), Martin
patent: 4557763 (1985-12-01), George et al.
patent: 4676832 (1987-06-01), Childs et al.
patent: 5158996 (1992-10-01), Valenti
patent: 5284512 (1994-02-01), Koskan et al.
patent: 5340860 (1994-08-01), Brake et al.
patent: 5369198 (1994-11-01), Albrecht et al.
patent: 5610264 (1997-03-01), Wood et al.
patent: 5614017 (1997-03-01), Shawl
patent: 5660626 (1997-08-01), Ohta et al.
patent: 5670578 (1997-09-01), Shawl
patent: 5688904 (1997-11-01), Wood et al.
patent: 5798425 (1998-08-01), Albrecht et al.
patent: 5876623 (1999-03-01), Tang et al.
patent: 5908885 (1999-06-01), Sikes et al.
patent: 6133347 (2000-10-01), Vickers, Jr. et al.
patent: 6136950 (2000-10-01), Vickers, Jr. et al.
patent: 6174980 (2001-01-01), Hirata et al.
patent: 6182758 (2001-02-01), Vijn
patent: 6211317 (2001-04-01), Albrecht et al.
patent: 6284867 (2001-09-01), Vickers, Jr. et al.
patent: 6405801 (2002-06-01), Vijn et al.
patent: 6429266 (2002-08-01), Vickers, Jr. et al.
patent: 6454004 (2002-09-01), Reddy et al.
patent: 6565645 (2003-05-01), Klein et al.
patent: 2002/0005287 (2002-01-01), Reddy et al.
patent: 0 767 807 (1996-01-01), None
patent: 1 238 952 (2002-09-01), None
patent: 2 307 689 (1997-06-01), None
patent: 7172888 (1995-07-01), None
patent: WO 96/00743 (1996-01-01), None
Donlar Corporation Technical Bulletin entitled Higher Molecular Weight Polymers dated Apr. 24, 1998.
Donlar Corporation Technical Bulletin entitled Low Molecular Weight Polymers dated Apr. 24, 1998.
Database WPI; Section Ch, Week 199536; Derwent Publications Ltd., London, GB; AN 1995-272734; XP002254694 & JP 07 172888 A (Mitsui Toatsu Chem Inc.), Jul. 11, 1995 *abstract*.
Database WPI; Section CH, Week 199816; Derwent Publications Ltd., London, GB; AN 1998-174744; XP002254695 & JP 10 036156 A (Mitsui Toatsu Chem Inc.), Feb. 10, 1998 *abstract*.
Claudia Boeker: “Polyaspartic Acid Derivatives as Cement-Additives” Online!; May 2000, Technische Universitat Wien XP002254722; Retrieved from the Internet: <URL:http://www.arcs.ac.at/dissdb/rn036751>; retrieved on Sep. 17, 2002! *see abstract*.
Keilhofer Gregor
Plank Johann
Spindler Christian E.
Vijn Jan Pieter
Bagnell David
Degussa Construction Polymers GmbH
Halliburton Energy Service,s Inc.
McAfee & Taft P.C.
Roddy Craig W.
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