TRC Rod Services of Oklahoma (TRC Company) has launched a new shot peening system at its recently opened rod sucker plant in Oklahoma City.
Offshore staff
Burlington, Canada -- TRC Rod Services of Oklahoma (TRC Company) has launched a new shot peening system at its recently opened rod sucker plant in Oklahoma City. The facility features a Skew Roll Peening machine with a blast wheel, which is capable of effectively shot peening rods at a rate of 75 ft (23 m) per minute.
The shot peening process relieves the residual stresses built up in the sucker rods from downhole usage. The constant movement and weight on the rod string (via the force and rotation of the pump jack) generates significant residual stresses in the sucker rods, often leading to costly breaks, the company says. Shot peening also helps prevent corrosion of sucker rods when they are in oil wells by placing the outer layer of the rods into compression. The anchor pattern supplied by shot peening also allows a corrosion inhibitor to attach easily. The role of the inhibitor is to prevent corrosion during storage and everyday use.
