Hydrolytically stable polymers for use in oil field cementing me

Details Hydrolytically stable polymers for use in oil field cementing me Hydrolytically stable polymers for use in oil field cementing me

1985-02-20

1985-11-26

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106314, 166293, C04B 735

Patent

active

045552690

ABSTRACT:
Cementing compositions and methods of using such compositions in oil, gas and water well cementing operations to reduce fluid loss from the composition to the formation are disclosed. Such compositions incorporate certain copolymers and copolymer salts of N,N dimethylacrylamide and 2-acrylamido, 2-methyl propane sulfonic acid having mole ratios of between 1:4 and 4:1 respectively and average molecular weights of between about 75,000 and about 300,000.

REFERENCES:
patent: 4011909 (1977-03-01), Adams et al.
patent: 4015991 (1977-04-01), Persinski et al.
patent: 4515635 (1985-05-01), Rao et al.

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