Method of reducing fluid loss in cement compositions

Details Method of reducing fluid loss in cement compositions Method of reducing fluid loss in cement compositions

1987-03-27

1989-02-21

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

166285, 166293, 166294, C04B 735, E21B 3314

Patent

active

048061646

ABSTRACT:
Cementing compositions having improved fluid loss capabilities for use in oil, gas, water and other well cementing operations are disclosed. Such compositions are comprised of water, hydraulic cement and a fluid-loss additive comprising a polymerization reaction product of styrene with 2-acrylamido-2-methylpropanesulfonic acid and their salts, said styrene being present in an amount of from about 15 to about 60 mole percent and said 2-acrylamido-2-methylpropanesulfonic acid being present in an amount of from about 40 to about 85 mole percent of said polymer.

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patent: 4700780 (1987-10-01), Brothers

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