The bow casing centralizer is designed for high restoring force and low starting force for centralizing the casing pipe in a vertical, 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 in use, the unfolded centralizer can be stacked flatly for convenient storage and transportation.
Designed for High Restoring Force and Low Starting & Running Force.
End collars are designed with self-locking action, which are easy to assemble.
Undergo special coating process to prevent from rust.
Can be shipped in half assembled condition for economy in shipping and storage costs.
Specification: 4"---20". Any special sizes or combination can available on request.
API Specification 10D Standard
Non-welded:
Integral bow design for increased strength and performance
Zero weak points, such as hinges, welds, or mechanical interlocks
Flexible to absorb both axial and radial loading
Powder coated red finish
Used in most well applications and geometries for vertical, horizontal extended reach drilling, close tolerance, or under reamed well conditions
Specialized in centralization for under reamed sections
Recommended to be run between limit clamps
Sizes available—4-1/2 to 20 in.; custom sizes available
Model (in) | Hooping In-Dia. (mm) | Hooping thickness (mm) | Hooping Height (mm) | Total Length (mm) | Max. Out-Dia. (mm) | Spring Pieces |
5-1/2*8-172 | 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 |
Model (in) | Hooping In-Dia. (mm) | Hooping Thickness (mm) | Hooping Height (mm) | Total Length (mm) | Max. Out-Dia. (mm) | Spring Pieces |
5-172*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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No 12111,Jingshi Road, Lixia District, Jinan City, Shandong Province. P.R. China
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