| 摘要 |
A well arrangement suitable for recovery by an in situ combustion process of hydrocarbons from a subterranean reservoir (1), said well arrangement comprising: a vertical injection well (2) extending into the upper portion of said reservoir suitable for the injection of oxygen-rich gas into said reservoir; a horizontal oil production well (6), positioned in said reservoir (1) in a position below the lower end of said injection well (2) and substantially aligned with it; and a plurality of vertical vent wells (3) for removal of flue gases, said vertical vent wells (3) extending into the upper portion of said reservoir and substantially aligned along the line of said horizontal production well (7); as well as a method for recovering hydrocarbons from a subterranean reservoir comprising providing a subterranean reservoir with at least one well arrangement in accordance with the present invention, performing in situ combustion using said well arrangement and recovering mobilised hydrocarbon from the horizontal production well. |
