Stabilizing the viscosity of an aqueous solution of polysacchari

Details Stabilizing the viscosity of an aqueous solution of polysacchari Stabilizing the viscosity of an aqueous solution of polysacchari

1978-05-05

1980-08-19

Padgett, Benjamin R.

Compositions

Leather or fur treating

252 855R, 166246, C09K 300

Patent

active

042183278

ABSTRACT:
In an oil recovery process in which an aqueous solution thickened with a water-soluble anionic polysaccharide polymer (Xanthan gum polymer) is injected into a subterranean reservoir, the stability of the solution viscosity is improved by de-oxygenating the aqueous liquid and then adding a sulfur-containing antioxidant, a readily oxidizable water-soluble alcohol or glycol and the Xanthan gum polymer.

REFERENCES:
patent: 3343601 (1967-09-01), Pyre
patent: 3676494 (1972-07-01), Biland et al.
patent: 3801502 (1974-04-01), Hitzman
patent: 3966618 (1976-06-01), Colegrove
patent: 4141842 (1979-02-01), Abdo

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