Selectively controlling the flow of fluids through subterranean

Details Selectively controlling the flow of fluids through subterranean Selectively controlling the flow of fluids through subterranean

1976-03-17

1977-03-01

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166295, E21B 4322, E21B 33138

Patent

active

040097552

ABSTRACT:
A method of forming a combination plug in the more permeable zones of a subterranean formation of nonuniform permeability in which there is injected into the formation (1) aqueous solutions of a polymer and a material that reacts with the polymer to form a polymer-containing plug and (2) thereafter injecting aqueous solutions of an alkali metal silicate and a material that reacts with the silicate to form a silicate-containing plug.

REFERENCES:
patent: 3306870 (1967-02-01), Eilers et al.
patent: 3396790 (1968-08-01), Eaton
patent: 3530937 (1970-09-01), Bernard
patent: 3581824 (1971-06-01), Hurd
patent: 3656550 (1972-04-01), Wagner, Jr. et al.
patent: 3741307 (1973-06-01), Sandiford
patent: 3749172 (1973-07-01), Hessert et al.
patent: 3762476 (1973-10-01), Gall
patent: 3805893 (1974-04-01), Sarem
patent: 3809160 (1974-05-01), Routson
patent: 3921733 (1975-11-01), Clampitt

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