Well pumping of fluids having low hydrostatic pressure is provided through
a combination of jet pumping and gas assisted lifting. A jet pump is
located in a borehole in a producing zone of a well, and a source of gas
is introduced into the fluid returning from the production location. The
gas may be injected into the fluid used to operate the jet pump, such
that the gas remains compressed until exiting the jet pump, and then
provides assistance in lifting the returning fluid.