Set retarded cementing compositions and methods

Details Set retarded cementing compositions and methods Set retarded cementing compositions and methods

1996-08-07

1997-09-30

Marcheschi, Michael

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106727, 106823, 106737, 166293, 166294, 405267, C04B 2412

Patent

active

056722036

ABSTRACT:
The present invention provides set retarding additives, set retarded hydraulic cement compositions and methods of using the set retarded cement compositions for cementing subterranean zones in wells. A preferred set retarding additive comprises an alkanolamine salt produced by the reaction of a hydroxy carboxy acid, such as tartaric acid, gluconic acid or glucoheptonic acid, with an alkanolamine, such as monoethanolamine, diethanolamine or triethanolamine.

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