Compositions – Leather or fur treating
Patent
1981-09-18
1984-01-10
Guynn, Herbert B.
Compositions
Leather or fur treating
166246, 536114, E21B 4322
Patent
active
044252463
ABSTRACT:
A process for recovering crude oil from a subterranean formation using aqueous saline heteropolysaccharide solutions containing at least 0.5 wt. % of inorganic salts which are stabilized against viscosity loss on heat treatment. The stabilization process comprises preparing an aqueous solution containing heteropolysaccharide and inorganic salts, removing oxygen from the saline solution, heating to a temperature of at least 100.degree. C. in an inert atmosphere, then removing cell debris. The solutions also have improved filterability and are free of cell debris.
REFERENCES:
patent: 3625888 (1971-12-01), Redmore et al.
patent: 3634232 (1972-01-01), Dunlop
patent: 3764548 (1973-10-01), Redmore
patent: 3800877 (1974-08-01), Knight
patent: 3801502 (1974-04-01), Hitzman
patent: 3976593 (1976-08-01), Hartke et al.
patent: 4182860 (1980-06-01), Naslund et al.
patent: 4218327 (1980-08-01), Wellington
patent: 4256590 (1981-03-01), Naslund et al.
patent: 4299825 (1981-11-01), Lee
Lipton, "Improved Injectibility of Biopolymer Solutions", SPE Paper No. 5099, 49th Annual Meeting SPE of AIME, Houston, 1974, p. 3.
Patton, "Chemical Treatment Enhances Xanflood Polymer", SPE Paper No. 4670, 48th Annual Meeting of SPE of AIME, Las Vegas, 1973, p. 3.
Holzwarth George M.
Naslund Lars A.
Sandvik Erik I.
Exxon Research & Engineering Co.
Guynn Herbert B.
Locker Howard J.
Simon Jay
Takemoto James H.
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