Methods and compositions for reducing water production from subt

Details Methods and compositions for reducing water production from subt Methods and compositions for reducing water production from subt

1996-04-17

1997-12-30

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166294, 507211, 507216, 507225, 507237, 507903, 523130, E21B 33138

Patent

active

057019568

ABSTRACT:
The present invention relates to methods and compositions for reducing the production of water from water and oil producing subterranean formations. The methods basically comprise the introduction of an aqueous polymer composition into the water producing zones of the formation which cross-links after being placed therein. The compositions of the invention are comprised of a heavy brine and a graft copolymer of a hydrophilic polymer and a phosphonate.

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