Foamed drilling fluids, their process for preparation and...

Details Foamed drilling fluids, their process for preparation and... Foamed drilling fluids, their process for preparation and...

C - Chemistry, Metallurgy

09

K

C09K 8/38 (2006.01) C09K 8/16 (2006.01) E21B 21/14 (2006.01)

Patent

CA 2171004

The present invention is directed to an aqueous foamed drilling fluid for drilling well bores into a subterranean formation, comprising water, at least one clay and at least one foaming agent. According to the invention, it further comprises at least one metal hydroxide. The invention further relates to a method for preparing said foamed drilling fluid.

L'invention concerne un fluide de forage moussant et aqueux s'utilisant pour percer des puits de forage dans une formation souterraine et qui est composé d'eau, d'au moins une argile et d'au moins un agent moussant. D'après l'invention, il comprend, de plus, un hydroxyde de métal. L'invention concerne, de plus, un procédé de préparation dudit fluide de forage moussant.

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