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

1980-10-14

Novosad, Stephen J.

Wells

Processes

Heating, cooling or insulating

166288, E21B 4324

Patent

active

042275750

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

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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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