Has anyone actually used this process in a commercial operation?  Seems kind of experimental at this point.  Although I know it is not possible in the case of tar sands, just the thought of this kind of production brings Centralia to my mind.
THAI is still an experimental technology. Petrobank Energy Inc. has patents on the technology and is currently conducting a trial at its Whitesands facilities. The trial is in a pre-warming stage, with ignition expected within weeks. How well THAI works should be known by the end of this summer.