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Help CenterCasing Centralizer for Oil Pipe/Oil and Gas Bow Spring Centralizer
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Casing Centralizer for oil pipe/Oil and Gas Bow Spring Centralizer
* Type of casing centralizer:
1. Roller centralizer
2. Bow spring centralizer
3. Rigid centralizer
* Description:
Casing centralizer is a cementing tool which applied to centralize casing to improve the cementing quality. Designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in Horizontal and Deviated well.
Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the uniform hardness all over.
Spec and performance index of bow spring casing centralizer meet API Spec 10D.
The woven centralizer is connected by pin when operation, the unfolded centralizer can be stacked flatly for convenient storage and transportation.
1. There are welded and non-welded type, double bow and single bow available for supplying.
2. Non-welded bow spring casing centralizer is made of spring steel which has been heat teated and hardened tempered.
2. End collar hinges are folded toward inside. This way will minimize the collar stretch tendsthatto happenwhen centralizers encounter tapers, commonly found in certain type of pipe connections.
3. A reinforcing rib stamped into the end collar. This way will strengthen and preserve it's round configuration during transport.
4. Several different spring bow heights that are available to accommodate most of casing-to
-hole configuration.
5.Centralizers with built-in stop devices as well as those of uncommon sizes are available based on request
Non-weld casing centralizer
| Model (in) | Hooping In-Dia. (mm) | Hooping thickness (mm) | Hooping Height (mm) | Total Length (mm) | Max. Out-Dia. (mm) | Spring Pieces |
| 5-1/2*8-1/2 | 142-148 | 3-5 | 90-120 | 650±50 | 225±5 | 5 |
| 7*9-5/8 | 181-186 | 3-5 | 90-120 | 650±50 | 255±5 | 6 |
| 7*8-1/2 | 181-186 | 3-5 | 90-120 | 650±50 | 235±5 | 6 |
| 8-5/8*12-1/4 | 223-228 | 3-5 | 90-120 | 650±50 | 330±5 | 8 |
| 9-5/8*12-1/4 | 250-255 | 3-5 | 90-120 | 650±50 | 330±5 | 8 |
| 10-3/4*12-1/4 | 274-276 | 3-5 | 90-120 | 650±50 | 330±5 | 9 |
| 13-3/8*17-1/2 | 342-347 | 3-5 | 90-120 | 650±50 | 450±5 | 11 |
| 18-5/8*24 | 476±1 | 3-5 | 90-120 | 600±50 | 610±5 | 12 |
| 20*26 | 510±1 | 3-5 | 90-120 | 600±50 | 660±5 | 12 |
Weld casing centralizer
| Model (in) | Hooping In-Dia. (mm) | Hooping Thickness (mm) | Hooping Height (mm) | Total Length (mm) | Max. Out-Dia. (mm) | Spring Pieces |
| 5-1/2*8-1/2 | 142-148 | 5-7 | 50-60 | 650±50 | 225±5 | 5 |
| 6*8-1/2 | 154-158 | 5-7 | 50-60 | 650±50 | 255±5 | 5 |
| 13-3/8*17-1/2 | 342-349 | 8 | 50-60 | 580 | 450±5 | 6 |
| 20*26 | 510-518 | 8 | 50-60 | 650±50 | 670±5 | 10 |
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