Reduced biodegradability in a polymer flood process

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United States of America Patent

PATENT NO 4517101
SERIAL NO

06525532

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
CITIES SERVICE COMPANY A DE CORP110 W 7TH ST P O BOX 300 TULSA OK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Munnecke, Douglas M 2712 S. Elder St., Broken Arrow, OK 74012 3 58
Williams, David 2708 S. Elder St., Broken Arrow, OK 74012 273 4987

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