Single well steam assisted gravity drainage

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/24 (2006.01) E21B 43/30 (2006.01)

Patent

CA 2752059

The present invention provides a method for recovering hydrocarbons from a sub- surface reservoir having present therein a wellbore in which a production conduit and an injection conduit are located, said method comprising injecting a heating fluid into the reservoir via said injection conduit, characterised in that said heating fluid is released via a plurality of discrete permeable sections (injection sections) located along the length of the injection conduit and produced hydrocarbons are collected via a plurality of discrete permeable sections (production sections) located along the length of the production conduit.

La présente invention se rapporte à un procédé de récupération d'hydrocarbures depuis un réservoir souterrain comportant un puits de forage dans lequel se trouvent un conduit de production et un conduit d'injection, ledit procédé comprenant l'injection d'un fluide de chauffage dans le réservoir par l'intermédiaire dudit conduit d'injection, caractérisé en ce que ledit fluide de chauffage est dégagé par l'intermédiaire d'une pluralité de sections perméables distinctes (sections d'injection) situées le long du conduit d'injection et les hydrocarbures produits sont collectés par l'intermédiaire d'une pluralité de sections perméables distinctes (sections de production) situées le long du conduit de production.

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