Abstract: An electric submersible hydraulic lift pump system is used for removing fluid from a well. The hydraulic lift pump system includes a source of fluid, a tubing string extending from the surface and in fluid communication with the source of fluid, a first pump interposed in the tubing string so the first pump is positioned below the surface and operably arranged to draw fluid from the tubing string upstream of the first pump and to discharge the fluid into the tubing string downstream of the first pump as a power fluid, and a second pump interposed in the tubing string and operably arranged to receive the power fluid from the first pump and be combined with a production fluid to form a return fluid to be discharged into the annulus.

Abstract: A tool joint connection includes a first tool joint and a second tool joint. The first tool joint has a male connector portion with a lobed polygonal profile extending longitudinally from one end of the first tool joint toward an opposing end thereof. The second tool joint has a female connector portion having a lobed polygonal profile extending longitudinally from one end of the second tool joint toward an opposing end thereof. The lobed polygonal profile of the male connector portion corresponds to the lobed polygonal profile of the female so the male connector portion of the first tool joint is non-rotatably receivable in the female connector portion of the second tool joint to form a connection between the first tool joint and the second tool joint.