Method for recovering viscous hydrocarbons utilizing heated...

Details Method for recovering viscous hydrocarbons utilizing heated... Method for recovering viscous hydrocarbons utilizing heated...

E - Fixed Constructions

21

B

166/33

E21B 43/24 (2006.01) E21B 43/18 (2006.01)

Patent

CA 1082591

ABSTRACT OF THE DISCLOSURE A multi-phase heated fluid process which avoids heated fluid breakthrough, is used to continually produce subsurface hydrocarbons, utilizing two communicating wells in a process comprising: . simultaneous injection of said heated fluid into said wells until substantial mobilization of hydrocarbons within a zone surrounding said wells is obtained; . one well is shut in while production is commenced in the other well; . preferably a final phase where sufficient heated fluid at relatively restricted rates is continually injected into said one well to provide driving force for con- tinual production in said other well, without inter- ruption, once production has commenced. -1-

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