Patent ID: 7735554

Claim:
A system for the gasification of a carbonaceous deposit located below the ground surface, the system comprising: an injection well assembly comprising one end positioned at the ground surface and the opposite end of the injection well assembly located within the carbonaceous deposit; a production well assembly comprising one end positioned at the ground surface and the opposite end of the production well assembly located within the carbonaceous deposit; a non-vertical reaction shaft assembly located within the carbonaceous deposit a distance below ground surface, the non-vertical reaction shaft having a length and comprising an injection end in communication with the end of the injection well assembly located within the carbonaceous deposit and a production end in communication with the end of the production well assembly located within the carbonaceous deposit; and a mobile electric device configured to move within the non-vertical reaction shaft assembly; wherein the production well assembly further comprises a product casing, a steam jacket casing surrounding at least a portion of the product casing, and an external water jacket casing surrounding at least a portion of the steam jacket casing, wherein the external water jacket casing comprises an inlet for water and wherein the steam jacket casing comprises an outlet for steam and wherein the product casing transfers product gasification gas from the non-vertical reaction shaft assembly to the surface.