Abstract: A capacitor assembly and a method of making the capacitor assembly. The capacitor assembly includes: a power cable including first and second electrical conductors; a motor cable including first, second, and third electrical conductors, the first electrical conductor of the motor cable electrically connected to the first electrical conductor of the power cable, and the second electrical conductor of the motor cable electrically connected to the second electrical conductor of the power cable; a capacitor connected to the first electrical conductors and to the third electrical conductor; and a cover enclosing the capacitor, ends of the first conductors of the power cable and the motor cable connected to the capacitor, and an end of the third conductor connected to the capacitor, the first connection, and the second connection, and wherein after installation the capacitor assembly has an arcuate shape with a concave surface facing the pipe.

Abstract: A capacitor assembly and a method of making the capacitor assembly. The capacitor assembly includes: a power cable including first and second electrical conductors; a motor cable including first, second, and third electrical conductors, the first electrical conductor of the motor cable electrically connected to the first electrical conductor of the power cable, and the second electrical conductor of the motor cable electrically connected to the second electrical conductor of the power cable; a capacitor connected to the first electrical conductors and to the third electrical conductor; and a cover enclosing the capacitor, ends of the first conductors of the power cable and the motor cable connected to the capacitor, and an end of the third conductor connected to the capacitor, the first connection, and the second connection, and wherein after installation the capacitor assembly has an arcuate shape with a concave surface facing the pipe.

Abstract: Modular protector apparatus for oil-filled submergible electric motors that drive submergible pumps comprises pluralities of components that are interconnected in different system permutations to form protectors appropriate for different applications. The components include heads, chambers, bases, and interconnecting bodies. The bodies have fluid passages that are adapted to communicate with other components and that are opened and closed selectively to provide desired inter-component flow paths. By virtue of the invention, a wide variety of protector apparatus may be manufactured economically.

Abstract: Modular protector apparatus for oil-filled submergible electric motors that drive submergible pumps comprises pluralities of components that are interconnected in different system permutations to form protectors appropriate for different applications. The components include heads, chambers, bases, and interconnecting bodies. The bodies have fluid passages that are adapted to communicate with other components and that are opened and closed selectively to provide desired inter-component flow paths. By virtue of the invention, a wide variety of protector apparatus may be manufactured economically.

Abstract: Submergible pumping apparatus for use in an oil or other well comprises, in a self-contained downhole unit, a double-acting reciprocating positive displacement pump for pumping well fluid, a reservoir containing power fluid for operating the double-acting pump, a rotary motor-driven positive displacement pump for supplying power fluid under pressure from the reservoir to operate the reciprocating pump, and a control valve for properly directing high pressure power fluid from the rotary pump to the reciprocating pump and from the reciprocating pump back to the reservoir so as to provide stroke reversal of the reciprocating pump.

Abstract: This disclosure pertains to protection apparatus for liquid-filled submergible equipment such as downhole electric motors used in oil wells and the like. The protection apparatus provides a positive bias force on the filling liquid so that any liquid leakage through motor seals and the like takes place from the inside out. The positive bias pressure is created by a piston having a substantially constant biasing pressure applied thereto by constant force springs. The piston operates in a cylinder which communicates at its head-end with the equipment being protected. The base-end of the cylinder communicates with a conventional labyrinth-type protector for maintaining an interface between the protecting liquid and well fluid externally of the cylinder.