Cross-linked polyvinyl alcohols and oil reservoir permeability c

Details Cross-linked polyvinyl alcohols and oil reservoir permeability c Cross-linked polyvinyl alcohols and oil reservoir permeability c

1987-09-04

1989-08-22

Pertilla, Theodore E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

166270, 166272, 166295, 252 8554, 524503, 525 58, C09K 700

Patent

active

048597171

ABSTRACT:
A novel cross-linked polymer is obtained by cross-linking polyvinyl alcohol with a cross-linking agent which is a mixture of a phenolic component and an aldehyde or a mixture of a naphtholic component and an aldehyde. The resulting polymer is exceptionally thermally stable and, therefore, can be used as an effective permeability control agent in all enhanced oil recovery operations, including steam flooding.

REFERENCES:
patent: 4276209 (1981-06-01), Petersen et al.
patent: 4458048 (1984-07-01), Schmitt
patent: 4458052 (1984-07-01), Schmitt
patent: 4498540 (1985-02-01), Morocco
patent: 4666957 (1987-05-01), Marrocco
patent: 4708974 (1987-11-01), Chang et al.

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