Gel composition and method of treatment

Details Gel composition and method of treatment Gel composition and method of treatment

1990-07-25

1991-04-30

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166300, E21B 33138, E21B 4322

Patent

active

050109545

ABSTRACT:
A composition for treating a subterranean formation and a method of treatment. An aqueous gel composition is formed by mixing a carboxylate-containing polymer with a crosslinking agent comprised of chromic carboxylate. Ethylenediaminetetraacetic and is incorporated as a single-component gel breaker. When introduced into a permeable formation, the solution forms a gel which makes the formation impermeable. After a predetermined period of time the gel breaker breaks the gel to a predetermied degree which restores partial or limited permeability to the formation.

REFERENCES:
patent: 3490533 (1970-11-01), McLaughlin
patent: 4488601 (1984-12-01), Hammett
patent: 4604218 (1986-08-01), Dawson
patent: 4770796 (1988-09-01), Jacobs
patent: 4848464 (1989-07-01), Jennings, Jr. et al.
patent: 4899818 (1990-02-01), Jennings, Jr. et al.
patent: 4917186 (1990-04-01), Mumallah
patent: 4928763 (1990-05-01), Falk

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