Reducing permeability of highly permeable zones in oil and gas f

Details Reducing permeability of highly permeable zones in oil and gas f Reducing permeability of highly permeable zones in oil and gas f

1987-06-01

1988-09-27

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166295, 166300, 523130, E21B 33138

Patent

active

047734825

ABSTRACT:
High permeability zones in subterranean formations are reduced in permeability by the gelation of water soluble polymers of polyalkylenimines, polyalkylenepolyamines and mixtures thereof in such formations with cross-linking agents containing difunctional groups which are capable of cross-linking with said polymers.

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patent: 3762476 (1973-10-01), Gall
patent: 4155405 (1979-05-01), Vio
patent: 4216307 (1980-08-01), Yuasa et al.
patent: 4326009 (1982-04-01), Royer
patent: 4519843 (1985-05-01), Willis et al.
patent: 4657948 (1987-04-01), Roark et al.
patent: 4703801 (1987-11-01), Fry et al.

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