Reduced biodegradability in a polymer flood process

Details Reduced biodegradability in a polymer flood process Reduced biodegradability in a polymer flood process

1983-08-22

1985-05-14

Sebastian, Leland A.

Compositions

Leather or fur treating

166246, 435104, 435910, 536114, E21B 4322

Patent

active

045171017

ABSTRACT:
In a polymer flood, where bacterial contamination frequently causes a loss in viscosity of the polymer, the viscosity of the polymer solution is maintained by the use of a xanthan polymer modified by methylation of a portion of the subunit sugar residues of the xanthan base.

REFERENCES:
patent: 4256590 (1981-03-01), Naslund et al.
patent: 4340678 (1982-07-01), Wernau
patent: 4352741 (1982-10-01), Wernau

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