The oil pumping unit pony rod clamp, also known as a sucker rod clamp, is a critical component used to connect sucker rods in the petroleum drilling and oil well production processes. It facilitates the connection of different diameters and thread sizes of sucker rods, ensuring a continuous assembly for power transmission and support, enabling the extraction of underground crude oil or other fluids to the surface.
- Types: The oil pumping unit pony rod clamp can be categorized into the following types based on their connection characteristics and application scenarios:
- Same-thread clamp: Used to connect sucker rods with the same thread size, common thread types include Non-Upset End (NUE) and External Upset End (EUE) threads.
- Different-thread clamp: Used to connect sucker rods with different thread sizes, ensuring interchangeability and versatility of downhole equipment.
- Flanged clamp: Employed to connect sucker rods with other downhole equipment, such as pumping units, intake, and outlet valves, utilizing a flange connection method for enhanced sealing and detachability.2.Materials: The oil pumping unit pony rod clamp is typically manufactured from high-strength alloy steel or carbon steel materials, offering excellent corrosion resistance, high strength, and wear resistance to withstand the harsh conditions encountered in downhole environments.
2.Manufacturing Process: The production process of oil pumping unit pony rod clamps generally involves the following steps:
- Forging: The initial material is forged through pressure to achieve the preliminary shape of the clamp.
- Heat treatment: The forged clamp undergoes heat treatment to relieve internal stress, enhancing its strength and toughness.
- Turning and grinding: Machining techniques are applied to achieve precise dimensions and shapes, meeting standard requirements.
- Surface treatment: The clamp undergoes spray coating or plating to improve its corrosion resistance.
3.Performance: Superior oil pumping unit pony rod clamps should exhibit the following key performance features:
- High strength and wear resistance: Ensuring the clamp can withstand high loads and frequent movements, preventing fractures and wear due to load-bearing.
- Excellent sealing capability: Ensuring no leakage occurs downhole, preventing oil and gas from escaping, thus avoiding environmental pollution and energy wastage.
- Outstanding corrosion resistance: The clamp must withstand corrosive media present downhole, such as saltwater and hydrogen sulfide, to extend its service life.
