Gel for retarding water flow

Details Gel for retarding water flow Gel for retarding water flow

1988-08-01

1990-07-03

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525 60, 525 61, C08L 2904

Patent

active

049392034

ABSTRACT:
A polyvinyl alcohol-aldehyde gel having a high water content and low degree of crosslinking is provided which has improved stability. The gel can be used to retard the flow of water in subterranean formations encountered in hydrocarbon production. One embodiment of the invention provides a method of forming the gel in-situ in the pores of subterranean zones thereby retarding or blocking the flow of water therein.

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