3.5-Inch / 3-1/2-Inch Rubber Swab Cup — Downhole Load and Tubing Fit Selection
Product introduction
Rubber swab cups are replacement components for fluid-lifting swab tools. This enquiry uses the 3.5-inch or 3-1/2-inch size reference; confirm its meaning against the tubing bore and cup drawing. Select the cup profile, core or bushing and rubber grade for the intended lifting duty. A heavy-load description does not define a standalone pressure or lifting-capacity rating.
Related model and nominal size references are listed below. Confirm the required profile and actual dimensions separately; these references do not establish interchangeable cups.
V type(4-1/2'', 4-3/4'', 5-1/2'', 5-3/4'', 7'')
TA type(2'', 2-7/8'', 3-1/2'')
MV type(2-7/8'')
| Feature |
|
| Durability |
Wear behaviour depends on compound, cup fit, tubing condition and solids exposure; agree the grade for the intended duty. |
| Elasticity |
Cup flexibility supports contact with the matched tubing bore during fluid lifting; the cup is not a well-control pressure barrier. |
| Chemical Resistance |
Confirm rubber compatibility with the actual well fluid, additives and temperature; sour-service suitability requires specific documentation. |
| Temperature Resistance |
Approve operating temperature and exposure duration for the selected compound; no universal temperature range applies. |
| Function |
|
| Liquid Removal |
Supports fluid lifting when installed on a compatible swab tool in the approved operating arrangement. |
| Pressure Reduction |
Removing liquid can reduce the liquid-column hydrostatic head; follow the approved well-operation procedure. |
| Production Optimization |
Swabbing may support well unloading; production response depends on the well and operation, with no guaranteed output increase. |
Product photos show
Company&Factory
Shangahi Qinuo Industry Co., Ltd was established in the year of 2013 at Shanghai Free Trade Zone, we are a new and high-tech enterprise integrating R&D, production and sales. Since its inception, we adhering to the "Quality for Survival, Innovation Competes For Development " concept, continuous development and innovation, we won a good reputation at home and abroad, Qinuo has a brand name "SHQN® ".
Qinuo provides professional rubber parts, plastic parts and maching parts design and production services, products mainly used in oil & gas industry, automobiles, household appliances, machinery equipment etc. We have a professional production and sales team, "High-Quality, High Professionalism, High Efficiency" are the principles of doing things.
Under the Shanghai Qinuo, we have two wholly-owned factories in Nantong City, with shipping arrangements and delivery confirmed for each order, we have more than 30 rubber vulcanizing machines and relevanted equipments, so that Qinuo can produce more than 20 kinds of rubber rings or other rubber products together to meet our customer′s demands, our monthly rubber processing capability can upto 20 tons (about 40, 000 lbs) or more. And Qinuo is still in rapid growthing.
We adopt comprehensive quality management system based on the ISO9001, our products are mainly exported to the United States, Canada, Britain, Germany, Finland, Australia more than 100 countries extend all over the globe. Qinuo is sincerely wishing to cooperate with you.
3-1/2-Inch Heavy-Load Swab Cup Enquiry: Confirm Fit Before Duty
| Size meaning |
Confirm whether 3.5 inches refers to tubing or cup size. Provide actual tubing bore, wall or weight specification and cup OD/ID. |
| Cup profile |
Identify the required profile and part reference; confirm any TA selection against the existing tool drawing. |
| Tool interface |
Check cup bore, overall length, core or bushing and mandrel fit from the assembly drawing. |
| Operating duty |
State liquid column, fluid density, solids, temperature and tool operating limits for the intended lifting duty. |
| Compound and inspection |
Approve rubber grade, hardness value and Shore scale; agree dimensional and visual acceptance. Other nominal sizes require separate fit confirmation. |
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