Reverse Circulation Jet Pump and Reaming Stabilizer

A system for drilling an oil, gas, geothermal, or sequestration well or waste disposal reservoir comprising;

• a drill pipe;
• a drilling fluid pumped down the drill pipe;
• a jet pump reamer/stabilizer attached to the drill pipe, the jet pump reamer/stabilizer further comprising;
• a jet pump housing containing a jet pump, the jet pump having a venturi system through which the drilling fluid pumped down the drill pipe is directed into an annulus between the wellbore and the drill pipe;
• conduits in the jet pump housing through which some drilling fluid flows from within the jet pump housing via orifices into the wellbore around the drill bit, through the drill bit and venturi system and back to the surface;
• a reamer/stabilizer surrounding the jet pump housing and
• a rotary drill bit attached to the bottom hole assembly.