| 摘要 |
A process for viscous oil recovery from a subsurface formation wherein the electric power is generated by burning combustible material and the electric power is passed through the formation via electrodes, preferably producing wells, to apply heat to the oil and reduce its viscosity. Simultaneously therewith, the hot flue gas is used to heat water which is injected into the formation to apply heat to the formation, or reduce loss of the heat created by the electric current, or to force oil toward the producing wells, or any combination thereof.
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