Abstract: The present invention generally relates to corrosion protection of continuous sucker rod weld zones. In one embodiment, a method of manufacturing a continuous sucker rod is provided. The method includes acts of fusing adjacent free ends of adjacent rods together to form one continuous length of rod, said fusing creating a weld zone; treating the weld zone to resist corrosion in a wellbore environment; and winding the continuous length of rod into the continuous sucker rod coil.

Abstract: Box-end rotary sucker rod shear couplings including a substantially cylindrical housing having an interior surface defining a passage from an upper end to a lower end along a longitudinal axis and an exterior surface. The shear coupling also includes a set of threads around an inner circumference of the upper end for receiving a rotary sucker rod coupled directly into the upper end of the passage without an intervening adaptor; a set of threads around an inner circumference of the lower end for receiving a pump pin coupled directly into the lower end of the passage without an intervening adaptor; and one or more circumferential grooves machined into the cylindrical housing between the threads for causing rod shear failure at a predetermined axial load. In some embodiments, the shear couplings are conventional box-end sucker rod couplings. Also disclosed are rotary sucker rod assemblies including such rod shear couplings.

Abstract: A method and apparatus for connecting a component to a rod for use in downhole operations. Wherein the method and apparatus is design to reduce stress and the risk of failures in the connection during downhole operations. The method and apparatus having a connector assembly that is designed with only two wrench flats in order to minimize stress concentrations during operation. The method and apparatus having an optional intermediate alloy metallurgy.