Patent ID: 8684072
Filing Date: 2014-04-01
Classification: E21B,F02C,F22B

Abstract:
1. A gas generator for generating gasses in a borehole for use in the recovery of petroleum products, the gas generator comprising: a combustion housing shaped to fit within the borehole, the combustion housing forming an combustion chamber having a combustion end and an exhaust end; an oxygen injection port in the combustion end of the combustion chamber for injecting oxygen or other oxidizing agent into the combustion chamber; a hydrogen injection port in the combustion end of the combustion chamber for injecting hydrogen or other fuel into the combustion chamber adjacent the oxygen injection port; an ignition system operably mounted on the combustion end of the combustion housing for igniting the oxygen or other oxidizing agent and the hydrogen or other fuel from the oxygen injection port and the hydrogen injection port; a plurality of annular cooling jacket segments surrounding the combustion chamber, each of the plurality of annular cooling jacket segments having an inlet port and an outlet port for allowing water to flow therethrough; an inlet water line operably connected to the inlet ports of the plurality of annular cooling jacket segments; an outlet water line operably connected to the outlet ports of the plurality of annular cooling jacket segments; a plurality of apertures through the combustion housing allowing water to flow from the plurality of annular cooling jacket segments into the combustion chamber; and a restricted orifice at the exhaust end of the combustion chamber for allowing gasses from the combustion chamber to exit the combustion chamber and enter the borehole.