5 1/2 Inch V Style Swab Cup for Stackable Light Load Service in Oilfield Applications

Product Introduction

The Professional 5 1/2 inch V Style Swab Cup is an engineered downhole solution designed specifically for light load fluid recovery in large-bore casing and tubing operations. This model utilizes a fluid-actuated sealing lip that expands outward as hydrostatic pressure increases, supporting contact with the bore when the cup dimensions and service conditions are suitable. Its primary advantage lies in its stackable architecture, allowing operators to customize the tool string by mounting multiple cups on a single mandrel according to the mandrel design and operating procedure; inspect bore condition and cup wear before service.

Technical Specifications

The 5-1/2 inch designation is a nominal reference. The existing size table lists this version with a 4.970 inch cup OD and 2.495 inch cup ID. Confirm these dimensions against the required bore and mandrel before ordering; nominal size and actual cup diameter are different references.

Key Features and Engineering Advantages

1. Superior Debris and Sand Tolerance: The flexible thin-lip design allows the V-cup to bypass sand and scale during the downward run and effectively seal around particulates during the lift.

2. Optimized for Light Loads: Specifically engineered for low fluid columns where heavy-duty cups may not achieve a full seal. Confirm the selected cup and stack arrangement for the expected fluid load.

3. Controlled Descent: Follow the equipment operating procedure for running speed and fluid entry. Avoid treating the flexible profile as permission to increase wireline speed.

4. Steel Reinforced Foundation: The 5 1/2 inch model includes a steel base insert to prevent the elastomer from deforming or extruding over the mandrel shoulder during the upward stroke.

5. Stackable for Load Versatility: While designed for light loads, the cup count and spacing must be confirmed for the mandrel and planned fluid load. No universal stack count applies to every assembly.

Why Partner With Our Engineering Team?

ISO 9001:2015 Quality Standards: Our facility operates under a strict Quality Management System, ensuring repeatability across high-volume production runs.
In-House Tooling & Design: Our engineers assist with Design for Manufacturing (DFM), helping to refine part geometry to reduce costs and improve performance.

FAQ

Question: Why is a stackable V-cup preferred over a single large cup?
Answer: Stacking multiple V-cups allows for better load distribution. A single cup would have to be extremely rigid to lift the same load, making it prone to tearing. Multiple flexible cups provide a redundant sealing system.

Question: Can these cups handle sand and silt?
Answer: Confirm suitability for the sand concentration and particle size. Inspect the lip for cuts, trapped debris and uneven wear; a flexible profile does not eliminate abrasion.

Question: Is the steel insert necessary for light load service?
Answer: Yes, the steel insert is critical for maintaining the cup position on the mandrel. Without it, the hydrostatic pressure could force the rubber base to deform over the mandrel shoulder.