Set retarded cement compositions, additives and methods

Details Set retarded cement compositions, additives and methods Set retarded cement compositions, additives and methods

1995-08-02

1996-07-16

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106725, 106728, 106802, 106809, 106810, 106823, 166285, 166293, 166294, 405266, 524 2, 524 5, 524650, C04B 2400, C04B 2404, C04B 2416

Patent

active

055363113

ABSTRACT:
The present invention provides set retarding additives, set retarded hydraulic cement compositions including such additives and methods of using the cement compositions for cementing zones in wells. The set retarding additives are copolymers or terpolymers containing monomer units formed from one of maleic acid, itaconic acid, fumaric acid, citraconic acid and mesaconic acid along with other monomer units.

REFERENCES:
patent: 4555269 (1985-11-01), Rao et al.
patent: 4557763 (1985-12-01), George et al.
patent: 4674574 (1987-06-01), Savoly et al.
patent: 4941536 (1990-07-01), Brothers et al.

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