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4 1/2" Spiral Vane Roller Casing Centralizer For Oil Water Well
Roller Centralizers can also remove wellbore cake and improve mud replacement efficiency etc.Roller Centralizers provide superior wear resistance and have been proven to remain functional throughout the life of the well and can aid in casing/tubing retrieval.
Specification:
Specification | casing size (mm) | Hole Size (mm) | Inner Diameter (mm) | Outer Diameter (mm) |
9-5/8″×12-1/4″ | 244 | 311 | 249 | 305 |
13-3/8″×17-1/2" | 340 | 445 | 344 | 439 |
5-1/2″×8-1/2″ | 140 | 216 | 142 | 210 |
6-5/8″×8-1/2″ | 168 | 216 | 172 | 210 |
7″×8-1/2″ | 178 | 216 | 182 | 210 |
7"× 9-1/2" | 178 | 241 | 182 | 235 |
4-1/2"×6" | 114 | 152 | 118 | 146 |
5"×6 5/8" | 127 | 168 | 131 | 162 |