Method of oil recovery by thermal mining

Details Method of oil recovery by thermal mining Method of oil recovery by thermal mining

E - Fixed Constructions

21

B

166/35

E21B 43/24 (2006.01)

Patent

CA 1123727

ABSTRACT OF THE DISCLOSURE A method of oil recovery by thermal mining from oil deposit sections into which the mine field is divided, according to which a plurality of underground workings are provided ensuring a successive recovery of oil from the mine field sections. The plurality of underground work- ings include intake and development wells. Thereupon, an overall mine ventilation system is set up ensuring the ventilation of the workings. Prior to the supply of heat- ing medium to the development wells, the flow of coolant is throttled. Then, the throttled heating medium flow is force-fed via pipes into the development wells for heating the oil bed to the temperature at which oil assumes the required fluidity in the oil bed. A fluid medium is then force-fed to the intake wells to force oil from the oil bed into the development wells and pump it up to the sur- face.

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