motor 33 and shroud 31 once the blended oil enters the annulus inside shroud 31 the oil undergoes the same conditioning process as described above in the first embodiment the present invention enhances pumping viscous well fluid by reducing the viscosity of crude oil the oil heats to a higher temperature when separated than it would if mixed with water even when recombined with water the oil will be less viscous because of its higher temperature lowering the viscosity of the fluid being pumped to the surface increases the pump efficiency a better pump efficiency results in greater flow rates which leads to increases in oil production better efficiency also leads to a reduction in the head to stage ratio which means for the same amount of fluid delivered to the surface a smaller pump requiring less horsepower can be used lower horsepower requirements means that a smaller motor is needed to drive the pump all of these results lead to less cost per unit produced the embodiment of fig2 a and 2b may be alternately configured so that the water forced to the outer edge of the interior of separator 45 is routed into the annular passage between motor 33 and shroud 31 while the.