|
|
| model gfz-e zinc alloy centralizer |
|
| |
features
-
protects casing from electrochemical corrosion.
-
lower coefficient of fraction than steel and aluminum centralizers, providing easier casing running and rotation.
-
can be run in vertical, highly-deviated and horizontal wells.
specifications
|
casing size
|
hole size
|
max o.d.
|
|
in.
|
in.
|
mm
|
in.
|
|
4-1/2
|
5-7/8
|
146
|
5.748
|
|
5-1/2
|
8-1/2
|
210
|
8.268
|
|
7
|
8-1/2
|
210
|
8.268
|
|
7-5/8
|
9-1/2
|
233
|
9.173
|
|
|
|
