Waterflood oil recovery process employing stabilized biopolymers

Details Waterflood oil recovery process employing stabilized biopolymers Waterflood oil recovery process employing stabilized biopolymers

1977-03-28

1979-02-27

Guynn, Herbert B.

Compositions

Leather or fur treating

166246, E21B 4322

Patent

active

041418425

ABSTRACT:
Waterflood oil recovery process employing a Xanthomonas polysaccharide as a thickening agent in which the aqueous polysaccharide solution contains a C.sub.3 -C.sub.5 aliphatic alcohol. The aliphatic alcohol functions to stabilize the polysaccharide against thermal degradation in reservoirs having temperatures in excess of 60.degree. C. The polysaccharide solution may also contain an alkali metal carbonate which functions with the alcohol to impart further stability to the Xanthomonas polysaccharide solution.

REFERENCES:
patent: 3079336 (1963-02-01), Stright et al.
patent: 3305016 (1967-02-01), Lindblom et al.
patent: 3532166 (1970-10-01), Williams
patent: 3637017 (1972-01-01), Gale et al.
patent: 3801502 (1974-04-01), Hitzman

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