Method for thermoshaft oil production

Details Method for thermoshaft oil production Method for thermoshaft oil production

E - Fixed Constructions

21

B

166/39, 262/6

E21B 43/00 (2006.01) E21B 43/16 (2006.01)

Patent

CA 1041560

-15- ABSTRACT A method for thermoshaft oil production comprises the provision of a combination of mining holes above an oil-bear- ing bed which are inclined at from 1° to 3° to the horizon. Then injection holes are drilled from these mining openings for feeding a heating medium into the bed. After that, a slope and a footway leading to the bottom part of the oil-bearing bed are constructed, and a production gallery is provided within the bottom part of the bed. Horizontal and ascending within the bottom part of the bed. Horizontal and ascending holes are drilled from the production gallery for oil produc- tion. A heating medium is fed into the injection holes for oil bearing bed and for displacement of oil into the horizont- al and ascending production holes towards the production gal- lery wherefrom the oil is fed up to the surface.

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