Abstract: A helical solid profile attached and originating from the outer diameter of a composite or steel sucker rod and extending approximately to the inner diameter of the production tubing, running axially along the sucker rod body and affixed to it for reinforcement and stabilization of the sucker rod tension member body in axial alignment to the central axis of the production tubing which the sucker rod member is housed in, whereas the helical solid profile is made of material which is for acceptable use within the production system environment, the helical solid profile purpose being to control and reduce the sucker rod's deflection during compressive moments, extending the life of the sucker rod or reduction in stress and erratic buckling cycles.

Abstract: A helical solid profile attached and originating from the outer diameter of a composite or steel sucker rod and extending approximately to the inner diameter of the production tubing, running axially along the sucker rod body and affixed to it for reinforcement and stabilization of the sucker rod tension member body in axial alignment to the central axis of the production tubing which the sucker rod member is housed in, whereas the helical solid profile is made of material which is for acceptable use within the production system environment, the helical solid profile purpose being to control and reduce the sucker rod's deflection during compressive moments, extending the life of the sucker rod or reduction in stress and erratic buckling cycles.

Abstract: A new method of curing polymer thermoset materials for use in down-hole production system sucker rod protection devices is disclosed. The process for making sucker rod components on a sucker rod comprises the steps of introducing a thermoset molding compound into a molding tool heated to a first temperature; heating the molding compound in the molding tool for a first processing time to form molded sucker rod components on a sucker rod that are partially cured; removing the molded sucker rod components and sucker rod after the first processing time; and placing the sucker rod components and sucker rod into a thermal chamber at a second temperature for a second processing time to provide secondary curing.

Abstract: A helical solid profile attached and originating from the outer diameter of a composite or steel sucker rod and extending approximately to the inner diameter of the production tubing, running axially along the sucker rod body and affixed to it for reinforcement and stabilization of the sucker rod tension member body in axial alignment to the central axis of the production tubing which the sucker rod member is housed in, whereas the helical solid profile is made of material which is for acceptable use within the production system environment, the helical solid profile purpose being to control and reduce the sucker rod's deflection during compressive moments, extending the life of the sucker rod or reduction in stress and erratic buckling cycles.

Abstract: A composite sucker rod (12) has a tension rod (16) formed of a carbon fiber reinforced phenolic material and a support sleeve (18) formed of aluminum. The support sleeve (18) extends around the tension rod (16). A compressive preload is applied to the support sleeve (18) and a corresponding tensile preload is applied to the tension rod (16). The tensile preload reduces compressive loads applied to the tension rod (16). The compressive preload and the tensile preload are applied by differences in coefficients of thermal expansion of the materials from which the support sleeve (18) and the tension rod (16) are formed, and exposure to well temperatures.

Abstract: A composite sucker rod (12) has a tension rod (16) formed of a carbon fiber reinforced phenolic material and a support sleeve (18) formed of aluminum. The support sleeve (18) extends around the tension rod (16). A compressive preload is applied to the support sleeve (18) and a corresponding tensile preload is applied to the tension rod (16). The tensile preload reduces compressive loads applied to the tension rod (16). The compressive preload and the tensile preload are applied by differences in coefficients of thermal expansion of the materials from which the support sleeve (18) and the tension rod (16) are formed, and exposure to well temperatures.

Abstract: A sucker rod string improved by the use of wear resistant, high temperature resistant, fiber-reinforced phenolic composite materials as centralizing guides on sucker rods and couplings, both molded on the rod and prepared as snap-on couplings for in-the-field use, and on magnet rod inserts, both rod box and pin magnet rod inserts, in which the thermosetting composites are used as sleeves, encapsulating housings, and centralizing guides. The magnet rod inserts and couplings are designed to be machined so that worn phenolic composite can be removed and replaced with fresh composite without removing or damaging the magnet. Processes are disclosed for integrating composite thermoset molding into sucker rod, coupling, and magnet rod insert manufacture and for refurbishing used components of a sucker rod string.