Viscous heavy brines

Details Viscous heavy brines Viscous heavy brines

1984-06-20

1986-01-28

Guynn, Herbert B.

Compositions

Leather or fur treating

252 855R, 2523635, C09K 702, E21B 4300

Patent

active

045669767

ABSTRACT:
Hydroxyethyl cellulose and a sequestrant are added to a heavy brine containing one or more salts selected from calcium chloride, calcium bromide, and zinc bromide to increase the viscosity of the brine. Preferably the brine contains zinc bromide, has a density in the range from about 14.2-19.2 pounds per gallon, and the sequestrant is a polyphosphonic acid or water soluble salt thereof.

REFERENCES:
patent: 3356519 (1967-12-01), Chambers et al.
patent: 4003838 (1977-01-01), Jackson et al.
patent: 4330414 (1982-05-01), Hoover
patent: 4350601 (1982-09-01), Mosier et al.
patent: 4359392 (1982-11-01), Rygg

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