Method for the in place recovery of heavy oil from a...

Details Method for the in place recovery of heavy oil from a... Method for the in place recovery of heavy oil from a...

E - Fixed Constructions

21

B

E21B 43/248 (2006.01) E21B 43/263 (2006.01) E21C 41/24 (2006.01)

Patent

CA 2559833

A method for extracting bitumen from a subterranean oil sand deposit including: blasting the subterranean deposit to fragment the subterranean deposit thereby forming a blasted deposit, the blasted deposit being operable to permit a flood volume of fluid to admix with the blasted deposit, to ablate and then release the heavy oil off an inert material so that the heavy oil floats on the flood volume of fluid forming a froth composed of the flood volume and the released bitumen up through and then above the blasted deposit; flooding the blasted deposit using the fluid , thereby forming a flooded deposit; recovering the heavy oil with the flood volume of fluid in the flooded deposit; and removing the fluid from the flooded deposit, thereby forming a treated deposit, the treated deposit being compacted by removing a fluid from the flooded deposit.

Méthode d'extraction de bitume à partir de dépôts souterrains de sables bitumineux comprenant les étapes suivantes : l'explosion du dépôt souterrain pour le fragmenter et ainsi former un dépôt explosé qui pourra être mélangé à un fluide d'injection, ce qui permettra d'ablater et de libérer ensuite l'huile lourde d'un matériau inerte de sorte que l'huile lourde flotte dans le fluide d'injection qui forme une mousse composée du fluide d'injection et du bitume libéré, dans et sur le dépôt explosé; l'injection du fluide dans le dépôt explosé pour former un dépôt injecté; la récupération de l'huile lourde avec le fluide d'injection dans le dépôt injecté; le retrait du fluide du dépôt injecté pour former un dépôt traité, le dépôt traité se trouvant compacté sous l'effet du retrait du fluide du dépôt injecté.

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