METHOD OF COLLECTING HYDROCARBONS FROM TUNNELS

摘要

There are a number of problems with the existing methods of steam-assisted gravity techniques to recover oil from oil sands. The present invention provides a method for recovering viscous hydrocarbons by installing one or more tunnels in and/or below a hydrocarbon formation; drilling a plurality of wells in the hydrocarbon formation, the wells being transverse and connected to at least one tunnel; injecting steam into the hydrocarbon formation from at least one of the wells; collecting fluid hydrocarbons through at least one of the wells to at least one of the tunnels; and transporting the hydrocarbons from at least one of the tunnels to the surface.