SUCKER ROD

  • Material: Typically made of high-strength steel, fiberglass, or composite materials.

  • Types:

    • Solid Sucker Rods: Single-piece steel rods, durable and widely used.

    • Hollow Sucker Rods: Allow fluid passage, used in specific applications.

    • Fiberglass/Composite Rods: Lightweight, corrosion-resistant, suitable for deep wells.

  • Connections: Threaded ends (API-standard pin-and-box connections) for secure assembly.

Key Features

  • High tensile strength to withstand cyclic stress.

  • Corrosion-resistant coatings (e.g., chrome plating) for harsh environments.

  • Precision machining for reliable load transfer.

Applications

  • Used in beam pumping (nodding donkey) systems.

  • Transmits mechanical energy from the surface pump jack to the subsurface plunger pump.

  • Suitable for vertical, directional, and horizontal wells.

Standards & Specifications

  • Complies with API Spec 11B (Sucker Rods) for dimensions, materials, and performance.

  • Graded by strength (e.g., Grade C, D, K for steel rods).

Advantages

  • Efficient artificial lift for low-pressure wells.

  • Cost-effective and adaptable to various well conditions.

  • Long service life with proper maintenance.

SUCKER ROD