Aqueous well fluids

Compositions – Leather or fur treating

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Details

252 8514, C09K 702, E21B 4300

Patent

active

046997229

ABSTRACT:
Aqueous well fluids, such as completion, stimulation and work over fluids contain, as a viscosifier, a polymer having recurring units derived from monomers of the formula

REFERENCES:
patent: 3744566 (1973-07-01), Szabo et al.
patent: 3909423 (1975-09-01), Hessert et al.
patent: 3938594 (1976-02-01), Rhudy et al.
patent: 4046197 (1977-09-01), Gruesbeck et al.
patent: 4460758 (1984-07-01), Peiffer et al.
patent: 4490261 (1984-12-01), Heilweil
patent: 4540496 (1985-09-01), Peiffer et al.
patent: 4554081 (1985-11-01), Borchardt et al.

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