A tubing pump is an essential tool in the oil and gas industry, widely used for lifting fluids from wells.

Its design integrates the working barrel directly into the production tubing string, offering a unique approach to well production compared to insert pumps.

Tubing pumps are particularly valued for their simplicity, durability, and capacity for high fluid production, making them indispensable in operations requiring efficient and reliable artificial lift systems.

Design and Structure

The tubing pump’s design features a working barrel that is permanently fixed within the tubing.

This integration eliminates the need for a separate working barrel as found in insert pumps, reducing complexity.

The standing valve is situated at the bottom of the tubing, while the sucker rod and plunger operate within the barrel, performing a reciprocating motion to lift fluids to the surface.

The larger bore size of the tubing pump allows for greater fluid displacement per stroke, making it highly effective in wells with high production demands.

Advantages of Tubing Pumps

1. High Fluid Production
   The large bore diameter enables the pump to move significant volumes of fluid with each stroke, making it ideal for wells with high production rates.
2. Simple and Robust Design
   Tubing pumps have a straightforward structure that reduces the likelihood of mechanical failures. Their durability ensures reliable operation even under challenging well conditions.
3. Cost-Effectiveness
   The simplicity of the tubing pump design leads to lower manufacturing and maintenance costs. Additionally, the pump’s efficiency contributes to lower operating expenses over time.
4. Suitability for Deeper Wells
   Tubing pumps are well-suited for deeper wells, where durability and consistent performance are critical.
5. Long-Term Reliability
   With proper maintenance, tubing pumps can deliver extended service life, ensuring steady production from oil wells.

Operation

The tubing pump operates through a simple yet effective mechanism.

The plunger, connected to the sucker rod, moves in a reciprocating motion within the fixed barrel.

During the upward stroke, the standing valve remains closed while the traveling valve opens, allowing fluid to be lifted to the surface.

On the downward stroke, the traveling valve closes, and the standing valve opens, drawing fluid into the barrel.

This continuous cycle ensures consistent fluid movement from the well to the surface.

Applications

Tubing pumps are commonly used in a wide range of oilfield operations.

They are especially effective in:

• High-Production Wells: Their ability to handle large volumes of fluid makes them ideal for wells requiring substantial production.
• Deep Wells: The durability and efficiency of tubing pumps make them suitable for deeper reservoirs.
• Heavy Oil Fields: Tubing pumps can manage the challenges of lifting heavier and more viscous fluids.

Maintenance and Longevity

Proper maintenance is essential for ensuring the longevity and optimal performance of tubing pumps.

Routine inspection of the sucker rod, plunger, and valves is critical to avoid wear and tear.

Regular cleaning of the wellbore can also prevent blockages, ensuring uninterrupted operation.

In summary, the tubing pump’s robust design, cost-effectiveness, and high production capacity make it a vital tool in oilfield operations.

Its integration into the production tubing string simplifies its use and enhances reliability, ensuring consistent performance across various well conditions.