Hinged non welded dual contact semi-rigid bow spring centralizer has the hinged design with a dual contact bow profile. It can achieve the highest restoring forces and usually zero to minimum starting force.
Hinged non welded dual contact semi-rigid bow spring centralizer can be used in most wells, and most suitable for horizontal and directional wells.
| Non Welded Centralizer Specification(mm) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | Specification | Bow Type | Hoop Ring Internal Diameter(d) | Hoop Ring Wall Thickness(T) | Hoop Ring Height(H) | Total Length(L) | Max. O.D. Size | Bow Spring(N) | |||||
| 1 | 5-1/2″*8-1/2″ | Double Bow | 142-148 | 3-5 | 90-120 | 650±50 | 225±5 | 5 | |||||
| 2 | 7″*9-5/8″ | Double Bow | 181-186 | 3-5 | 90-120 | 650±50 | 255±5 | 6 | |||||
| 3 | 7″*8-1/2″ | Single Bow | 181-186 | 3-5 | 90-120 | 650±50 | 235±5 | 6 | |||||
| 4 | 8-5/8″*12-1/4″ | Single Bow | 223-228 | 3-5 | 90-120 | 650±50 | 330±5 | 8 | |||||
| 5 | 9-5/8″*12-1/4″ | Single Bow | 250-255 | 3-5 | 90-120 | 650±50 | 330±5 | 8 | |||||
| 6 | 10-3/4″*12-1/4″ | Single Bow | 274-276 | 3-5 | 90-120 | 650±50 | 330±5 | 9 | |||||
| 7 | 13-3/8″*17-1/2″ | Single Bow | 342-347 | 3-5 | 90-120 | 650±50 | 450±5 | 11 | |||||
| 8 | 18-5/8″*24″ | Single Bow | 476±1 | 3-5 | 90-120 | 600±50 | 610±5 | 12 | |||||
| 9 | 20″*26″ | Single Bow | 510±1 | 3-5 | 90-120 | 600±50 | 660±5 | 12 | |||||
| Welded Centralizer Specification(mm) | |||||||||||||
| 1 | 5-1/2″*8-1/2″ | Single Bow | 142-148 | 5-7 | 50-60 | 650±50 | 225±5 | 5 | |||||
| 2 | 5-1/2″*8-1/2″ | Double Bow | 142-148 | 5-7 | 50-60 | 650±50 | 225±5 | 5 | |||||
| 3 | 5-1/2″*8-1/2″ | Cyclone Single Bow | 142-148 | 5-7 | 50-60 | 650±50 | 225±5 | 6 | |||||
| 4 | 6″*8-1/2″ | Double Bow | 154-118 | 5-7 | 50-60 | 650±50 | 225±5 | 5 | |||||
| 5 | 13-3/8″*17-1/2″ | Single Bow | 342-349 | 8 | 50-60 | 580 | 450±5 | 6 | |||||
| 6 | 20″*26″ | Single Bow | 510-518 | 8 | 50-60 | 650±50 | 670±5 | 10 | |||||
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