Low-frictional Turbulence Generating Centralizer is applied for casing RIH and turbulence generation of cement slurry upward flow during cementing. Low-frictional centralizers application
allows to improve casing passing through a bore, especially in horizontal wells and wells with
significant vertical deviation.
CTN centralizers reduce the risk of tool sticking. They are mounted on a casing pipe movably
and are protected from shifting with lockdown rings FK.
| PARAMETER DESCRIPTION | VALUE | ||||||
|---|---|---|---|---|---|---|---|
| CTN.-102/ 116 |
CTN.-102/ 119 |
CTN.-114/ 138 |
CTN.-114/ 150 |
CTN.-127/ 146 |
CTN.-168/ 206 |
CTN.-178/ 206 |
|
| Liner nominal diameter equipped with the device, mm |
102 | 102 | 114 | 114 | 127 | 168 | 178 |
| Outer diameter, mm | 116 | 119 | 138 | 150 | 146 | 206 | 206 |
| Nominal open hole diameter (bit diameter) where the device is RIH, mm |
123,8 | 123,8 | 142,9 | 155,6 | 155,6 | 215,9 | 215,9 |
| Length, mm | 185 | 185 | 220 | 220 | 220 | 250 | 250 |
| Friction coefficient at dry friction | 0,2 | ||||||
| Friction coefficient at fluid friction | less than 0,08 | ||||||
It can be produced according to Customer’s individual sizes.
