A non-electric drive mechanism connectable to a submersible pump for
pumping a fluid from a wellbore to the surface, the drive mechanism
including a shaft rotatably disposed within a housing, the shaft
operationally connectable to the submersible pump, at least one fan
connected to the shaft and a supply manifold positioned to pass a
pressurized fluid across the at least one fan in a manner to rotate the
fan and the shaft.