Polymer and method for permeability profile control under severe

Details Polymer and method for permeability profile control under severe Polymer and method for permeability profile control under severe

1986-05-23

1987-07-07

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166300, 523130, E21B 33138

Patent

active

046780327

ABSTRACT:
A method and composition for treating subterranean formation by reducing formation permeability by injecting into the formation through a well bore, a first polymer solution including a polymer selected from the group consisting of poly(vinylalcohol-co-vinylcarboxyl), ##STR1## poly(vinylalcohol-co-vinylether), ##STR2## wherein: R is H, alkyl, alkyl sulfonate or aryl groups having not more than 10 carbon atoms;

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