The primary factors affecting the selection and sizing of rods and the rod system are as follows:
- Size of pump and tubing
- Liquid viscosity and pourpoint
- Kind of corrosion [e.g., H2S, carbon dioxide (CO2), or saltwater]
- Conditions for unseating the downhole pump
- Pump setting depth
- Production rate
- Sand, paraffin, salt crystals, scale, foam, and GLR
These factors should be considered when manual (according to API RP 11L) or computer design calculations are performed to size the rod string and the related production equipment for a specific well.
Vigor's sucker rod is produced using standards such as API Specification 11B, the latest edition, and AISI Steel Products. However, in actual production and quality control, Vigor adopts industry standards higher than API standards. All rods are manufactured from high-quality steel bars that pass magnetic particle testing and straightening. During the forging process, its ends are heated in induction furnaces to ensure optimal fatigue resistance of the forged zone.
If you are interested in high-quality sucker rods, please do not hesitate to get in touch with Vigor for technical support.
