Reservoir stabilization by treating water sensitive clays

Details Reservoir stabilization by treating water sensitive clays Reservoir stabilization by treating water sensitive clays

1978-06-30

1979-08-21

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166303, 252855D, E21B 4322, E21B 4324

Patent

active

041649796

ABSTRACT:
A method of treating subterranean formations containing water-sensitive montmorillonite clays by contacting the formation with an aqueous solution of potassium salts of organic acids at elevated temperatures whereby the montmorillonite is transformed into other clay minerals which are less sensitive to swelling when contacted with water.

REFERENCES:
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patent: 3087539 (1963-04-01), Maurer, Jr.
patent: 3237692 (1966-03-01), Wallace et al.
patent: 3347313 (1967-10-01), Matthews et al.
patent: 3360043 (1967-12-01), Braden, Jr. et al.
patent: 3444931 (1969-05-01), Braden, Jr.
patent: 3476183 (1969-11-01), Haynes, Jr. et al.
patent: 3491833 (1970-01-01), Braden, Jr.
patent: 3847222 (1974-11-01), Braden, Jr.

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