In situ heat treatment process utilizing oxidizers to heat a...

E - Fixed Constructions – 21 – B

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E21B 36/02 (2006.01) E21B 43/24 (2006.01)

Patent

CA 2666206

Systems for heating a subsurface formation are described. The systems include a plurality of oxidizers positioned in a wellbore to form an oxidizer assembly. One or more of the oxidizers may include a shield with flame stabilizers. The flame stabilizers may stabilize the flame zone of the oxidizer by controlling fluid flow entering the shield and by controlling fluid flowing in the oxidizer. One or more of the oxidizers may be a catalytic oxidizer. Catalytic oxidizers may facilitate ignition of the oxidizers of the oxidizer assembly.

L'invention concerne des systèmes pour chauffer une formation souterraine. Les systèmes comprennent une pluralité d'agents d'oxydation positionnés dans un puits de forage pour former un ensemble d'agents d'oxydation. Un ou plusieurs agents d'oxydation peuvent comprendre un écran de protection comportant des stabilisateurs de flamme. Les stabilisateurs de flamme peuvent stabiliser la zone de flamme de l'agent d'oxydation en régulant un écoulement de fluide entrant dans l'écran de protection, et en régulant un fluide s'écoulant dans l'agent d'oxydation. Un ou plusieurs des agents d'oxydation peuvent être un agent d'oxydation catalytique. Des agents d'oxydation catalytique peuvent faciliter l'allumage des agents d'oxydation de l'ensemble d'agents d'oxydation.

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