Description
A-One Oil Roller Centralizer provides a constant centralizing force across opening range and therefore achieving excellent centralization in vertical wells, large deviated well, and horizontal wells. Operating effectively in casing up to 9 5/8″.



Technical Parameters
|
General Specs |
|
|
Temperature Rating |
555℉(292℃) |
|
Pressure Rating |
100MPa (14500psi) |
|
Diameter |
70mm (2 3/4″) |
|
Tool Weight |
15kg (33lb) |
|
Tool Net Length |
965mm (38″) |
|
Centralizing Force |
25kg (55lb) |
|
Opening Range |
70~254mm (2 3/4~10″) |
|
On-state Resistance |
<0.5Ω |
|
Insulation Resistance |
>20MΩ |
|
Upper Joint Connection |
13-Core (Convertible GO Type) |
|
Lower Joint Connection |
13-Core (Convertible GO Type) |
Features
◆ The design of Roller Centralizer is rational and easy to maintain.
◆ Centralization of logging tools at any well deviation.
◆ The anti-rotation spiral ring design easy for tool connection and disassembly and is not prone to unscrewing.
◆ Provide the connection type according to client needs.
Applications
Well completion and cementing
◆ Casing centralization: Ensure uniform distribution of the cement sheath and enhance cementing quality.
◆ Reduce the risk of casing running: Prevent the casing is be blocked or stuck.
FAQ
Q: What are the differences between a Roller Centralizer and a regular centralizer?
A: The roller centralizer adopts rotatable rollers, which have lower frictional resistance and is suitable for high-difficulty Wells (such as horizontal Wells). In contrast, the common centralizer (such as the vane type) has greater friction and is suitable for vertical Wells or simple well conditions.
Q: What is the maximum temperature rating?
A: Within 555℉(292℃)
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