Specifications
1.Reduce frictional forces obviously.
2.Increase casing running depth.
3.Ensure casings are centralized.
2.Increase casing running depth.
3.Ensure casings are centralized.
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The Roller Centralizer consists of rigid body, on which machined five spiral blades or straight blades. There are three modified alloy steel, fully heat treated rollers fixed on every blade. Because of rolling friction between the rollers and inside of well or casing, the capability of the RCR Centralizer is better than others of all. Recommend to use the tool in deviated holes and horizontal holes.
Main Models:
|
Type
|
Casing Size
(mm/inch) |
Minimum Hole
(mm/inch) |
I.D.
(mm/inch) |
O.D.
(mm/inch) |
OAL
(mm/inch) |
|
RCR5
|
139.7(5-1/2)
|
215.9(8-1/2)
|
143(5-5/8)
|
211(8-5/16)
|
260(10-1/4)
|
|
RCR7
|
177.8(7)
|
215.9(8-1/2)
|
181(7-1/8)
|
213.4(8-13/32)
|
260(10-1/4)
|
|
RCR9
|
244. 5(9-5/8)
|
311.15(12-1/4)
|
247.5(9-11/16)
|
305.4(12-1/64)
|
260(10-1/4)
|
|
RCR13A
|
339.7(13-3/8)
|
406.4(16)
|
344(13-35/64)
|
402(15-53/64)
|
260(10-1/4)
|