Method of altering the permeability of a subterranean formation

Wells – Processes – Cementing – plugging or consolidating

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Details

252 855D, 166270, 166273, 166274, 166275, 166295, 523130, 523131, C09K 300, E21B 4322, E21B 4325

Patent

active

045248290

ABSTRACT:
The production of water from a subterranean formation is reduced by contacting the formation with a water dispersible hydrophilic organic polymer having a molecular weight greater than 100,000 and containing carboxyl functionality and a crosslinking composition comprising water, a zirconium compound having a value of 4+, an alpha-hydroxy acid and an amine compound.

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