Breaker system for aqueous fluids containing xanthan gums

Details Breaker system for aqueous fluids containing xanthan gums Breaker system for aqueous fluids containing xanthan gums

1990-08-31

1991-10-08

Suchfield, George A.

Wells

Processes

Graveling or filter forming

166300, 252 8551, E21B 4304

Patent

active

050545523

ABSTRACT:
This invention relates to the breaking of high viscosity aqueous fluids in which xanthan gum was used as a thickening agent. The invention provides a breaker system comprising two oxidizers, an organic acid, and two catalysts. The invention is particularly useful in oil field operations such as placement of a gravel pack or distribution of a proppant in a fractured formation.

REFERENCES:
patent: 4067389 (1978-01-01), Savins
patent: 4081030 (1978-03-01), Carpenter et al.
patent: 4250044 (1981-02-01), Hinkel
patent: 4506734 (1985-03-01), Nolte
patent: 4610795 (1986-09-01), Norris et al.
patent: 4647385 (1987-03-01), Williams et al.
patent: 4895207 (1990-01-01), Friedman et al.
patent: 4928763 (1990-05-01), Falk
patent: 4969526 (1990-11-01), Cawiezel

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