API Casing Roller Casing Swage Restoring Buckled Collapsed or Dented Casing to Normal O. D and Roundness in Oil

• Customization: Available
• After-sales Service: 3 Years
• Warranty: 24moths
• Model NO.: Eccentric Roller Swage
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Transport Package: Wood Case or Stantdard Sea Packing
• Specification: custom sizes avaliable
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000000PCS

Product Description

1.Application

The Eccentric Roller Swage is used to restoring buckled, collapsed

or dented casing to its normal diameter and roundness in oil, gas,

and water well. The maximum may revert to the 98% of the casing's

original inside diameter.

2.Construction

Eccentric Roller Swage consists of eccentric mandrel,top roller,

center roller, bottom roller, taper roller, screw, steel ball, and so on, as

 

Eccentric Roller Swage

Eccentric Mandrel: The top of the eccentric mandrel is box thread

connected with drill string. The lower end is four steps with different

sizes and different axis. Thereinto, the axes of box thread, top roller

and bottom roller are the same; the axes of center roller and taper

eTianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.

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roller are the other same one. The eccentricity of two axes is e.

Roller: The roller is divided into four kinds, top roller, center roller,

bottom roller and taper roller, among which, the top roller center roller

and bottom roller are the expand parts. Taper roller can play the role

of guide shoe; in addition, it is processed a hemispherical-slot inside

the roller to adapt for eccentric mandrel, load a corresponding steel

ball to lock the top roller, center roller and bottom roller when rotating;

at the same time, taper roller is also participated in the initial

modification.

3.Working Principle

When the drill string rotated along its axis, top roller and bottom

roller are rotated along their axis. There is an eccentricity e between

center roller and top roller/bottom roller axes, so that form a group of

crankshaft cam mechanism with top roller and bottom roller as the

pivot points to make the center roller rotate and expand to restoring

collapsed or dented casing. In addition, when working in a relatively

complex deformation well, as a result of the different deformation, the

top roller, bottom roller and center roller shall be the rolling fulcrum for

each other; but every fulcrum resistance force are different, so when

the eccentric mandrel with eccentricity e rotated, the fulcrum of the

less deformation, the roller is rolled and expand to normal. The Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.

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fulcrum of the more deformation and more resistance force, the roller

is generated sliding friction movement with eccentric mandrel, and

expand collapsed or dented part to normal.

 

Certifications

Packaging & Shipping

 

Company Profile

Our Advantages

Tianhe principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run.
We are the Leading manufacturer in China since 1973 for drilling /fishing /milling equipment for oil and gas.
We have established a complete quality control system, all products& equipments manufactured as per international standard and API standard.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time & Flexible payment terms.
3. Full range of drilling /fishing /milling equipment for oil and gas.
4. Timely after-sale service.
5. Imported International brands Machines such as Japan Mazak machining center, Austria WFL machining center etc
6. Complete quality control system, offices and testing equipment.
 

FAQ

Dear  customer,

Thanks for your time of visiting us on made in china, if you have any further questions and needs, please kindly inform us by inquiry online or contact us by below information.

We look forward to your kind reply, thanks very much.

Ms. Dongyan
Sales Manager

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.