and production tubing 102 are disposed in a wellbore 104 which is drilled for the production of a fluid such as water or petroleum as used herein the term u201c petroleum u201d refers broadly to all mineral hydrocarbons such as crude oil gas and combinations of oil and gas the pumping system 100 preferably includes a pump 108 a motor 110 a seal section 112 and a fluid expansion module 114 the production tubing 102 connects the pumping system 100 to a wellhead 106 located on the surface although the pumping system 100 is primarily designed to pump petroleum products it will be understood that the present invention can also be used to move other fluids it will also be understood that although each of the components of the pumping system are primarily disclosed in a submersible application some or all of these components can also be used in surface pumping operations generally the motor 110 is configured to drive the pump 108 in a particularly preferred embodiment the pump 108 is a turbomachine that uses one or more impellers and diffusers to convert mechanical energy into pressure head in alternate embodiments the pump 108 is configured as a positive displacement pump the pump 108 includes a pump intake 118 that allows fluids from the wellbore 104 to be drawn into the pump 108 the pump 108 forces the wellbore fluids to the surface through the production tubing 102 in the.