Thermal-mining method of oil production

Details Thermal-mining method of oil production Thermal-mining method of oil production

E - Fixed Constructions

21

B

166/39

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

Patent

CA 1105378

Abstract of the Disclosure Disclosure is made of a thermal-mining method of oil production, according to which a plurality of underground workings are provided as well as at least one injection gal- lery and one production gallery. Injection wells are driven from the injection gallery and production wells from the production gallery. Then, the heat carrier is force-fed to the oil-bearing bed via injection wells for heating the oil- -bearing bed to a temperature at which oil assumes the requ- ired fluidity in the bed, and for forcing oil from the oil- -bearing bed to the production wells. Prior to feeding the heat carrier into the bed, the injection gallery is filled with an insulating medium serving to preclude the breakthro- ugh of heat carrier to the gallery from the bed. After that, oil from the production wells is withdrawn to the production gallery from which it is supplied to the surface via injec- tion workings.

320364

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