Abstract: A rotary gear pump includes a housing, a drive gear, and an idler gear. The housing has a central axis extending in an axial direction, and defines an intake port, a discharge port, and a gear chamber in fluid communication with the intake port and the discharge port. The drive gear and the idler gear are intermeshed, and rotatably disposed within the gear chamber for displacing fluid from the intake port to the discharge port. The drive gear has an axis of rotation that is coaxial with the housing central axis. The drive gear may be directly coupled to the idler gear of a second rotary gear pump, which idler gear has an axis of rotation that is coaxial with the axis of rotation of the drive gear.

Abstract: A reservoir fluid production system for producing reservoir fluid from a subterranean formation is provided for mitigating gas interference by effecting downhole separation of a gaseous phase from reservoir fluids, and also mitigating the adverse effects of solid particulate matter that is entrained within the reservoir fluids by effecting downhole separation of the solid particulate matter from the reservoir fluids.

Abstract: A combination cable guard and centralizer device, comprising an arcuate-shaped elongate base member having tapered ends, a pair of first hinge-housing portions wherein each of said pair is at an opposite end of a first elongate edge, and an opposite first elongate edge has a pair of spaced-apart channels for receiving and demountably engaging therein a shank portion and a flanged head portion of a bolt, and (ii) a complementary arcuate-shaped elongate upper member having tapered ends, a second hinge-housing portion in rotational hinged communication with the pair of first hinge-housing portions. The upper member has a second pair of channels for rotationally receiving therein a cylindrical rod having a female-threaded bore therethrough, and a third set of channels for receiving therethrough a male-threaded portion of the bolt wherein the male-threaded bolt is threadably engaged with the female-threaded bore of the cylindrical rod.