Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Patent
1994-05-13
1995-06-06
Bell, Mark L.
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
106808, 106823, 166293, 166294, 405267, C04B 2412
Patent
active
054218799
ABSTRACT:
Cement set retarding additives, set retarded hydraulic cement compositions and methods of using the cement compositions for cementing zones in wells are provided. The set retarding additives are copolymers containing monomer units formed from a first monomer of acrylic acid or methacrylic acid and a second monomer of acrylamide or a derivative of acrylamide.
REFERENCES:
patent: 4500357 (1985-02-01), Brothers et al.
patent: 4555269 (1985-11-01), Rao et al.
patent: 4557763 (1985-12-01), George et al.
patent: 4676317 (1987-06-01), Fry et al.
patent: 4941536 (1990-07-01), Brothers et al.
patent: 5092935 (1992-03-01), Crema et al.
Bell Mark L.
Halliburton Company
Kent Robert A.
Marcheschi Michael
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