HINGED WELDED IMPERIAL AND DUAL CONTACT BOW CENTRALIZERS
Hinged Welded Imperial and Dual Contact Bow Centralizers are unmatched for durability and performance. Thanks to their semi-rigid characteristics and optimal centralizing capacity, our dual contact bow spring centralizers are ideal for deviated and horizontal wells. The design of our imperial bow spring centralizers provides strong restoring forces while minimizing starting and running forces, making it a proven choice for excellent casing centralization in vertical, deviated and horizontal wells.
Flexible casing centralizer was made of spring steel which has been heat teated and hardened tempered to ensure proper and consistent spring characteristics.
End collar hinges are folded toward inside. This way will minimize the collar stretch to occur when centralizers encounter tapers, commonly found in certain type of pipe connections.
A reinforcing rib stamped into the end collar. This way will strengthen and preserve it's round configuration during transport.
Several different spring bow heights that are available to accommodate most of casing-to-hole configuration.
Centralizers with built-in stop devices as well as those uncommon sizes are available based on request.
Casing Centralizer Technical Parameters:
No.
|
Type
|
Inside diameter (mm)
|
Height (mm)
|
Total height (mm)
|
Largest diameter (mm)
|
1
|
5“*12-1/4”
|
128-131
|
105
|
690
|
330
|
2
|
5”*20”
|
128-131
|
105
|
720
|
535
|
3
|
5-1/2”*7”
|
142-148
|
55
|
650
|
215
|
4
|
5-1/2”*8-1/2”
|
142-148
|
55
|
650
|
225
|
5
|
6”*8-1/2”
|
156-158
|
55
|
650
|
235
|
6
|
7”*8-1/2”
|
181-186
|
55
|
650
|
235
|
7
|
7”*9-5/8”
|
181-186
|
55
|
650
|
255
|
8
|
7-5/8”*9-5/8”
|
197-201
|
55
|
650
|
275
|
9
|
9-5/8”*12-1/4”
|
250-255
|
55
|
650
|
330
|
10
|
13-3/8”*17-1/2”
|
342-347
|
55
|
650
|
450
|
11
|
5-1/2”*8-1/2”
|
142-148
|
110
|
650
|
225
|
12
|
7”*9-5/8”
|
181-186
|
110
|
650
|
255
|
13
|
7”*8-1/2”
|
181-186
|
110
|
650
|
235
|
14
|
5”*6-1/2”
|
128-131
|
110
|
650
|
175
|
15
|
7-5/8”*9-1/2”
|
196-200
|
110
|
650
|
250
|
16
|
10-3/4”*12-1/4”
|
274-276
|
110
|
650
|
330
|
17
|
5”*6-1/4”
|
130-132
|
110
|
650
|
170
|
18
|
9-5/8”*12-1/4”
|
250-255
|
110
|
650
|
330
|
19
|
13-3/8”*17-1/2”
|
342-347
|
110
|
650
|
450
|
20
|
5-1/2”*8-1/2”
|
142-148
|
55
|
650
|
225
|
