C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 73/02 (2006.01) C08G 65/325 (2006.01)
Patent
CA 2600124
A method of controlling the loss of a drilling fluid from a well bore into a subterranean formation in which one illustrative embodiment includes: drilling the well bore with an aqueous based drilling fluid that includes an aqueous phase and a shale hydration inhibitor that is a polyether amine compound, and circulating into the well bore a fluid pill including a dialdehyde crosslinking agent. The dialdehyde crosslinking agent reacts with the polyether amine compound and forms a polymeric material.
L'invention concerne un procédé permettant de commander la perte d'un fluide de forage d'un puits de forage dans une formation souterraine consistant, dans un mode de réalisation: à forer le puits de forage au moyen d'un fluide de forage à base aqueuse comprenant une phase aqueuse et un inhibiteur d'hydratation d'argile litée, soit un composé d'amine de polyéther, et à faire circuler dans le puits de forage un comprimé fluidique comprenant un agent de réticulation de dialdéhyde. Celui-ci réagit avec le composé d'amine de polyéther et forme un matériau polymère.
Finlayson & Singlehurst
M-I L.l.c.
LandOfFree
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