Certification: | API 10d |
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Surface Treatment: | Sand Blast |
Centralizer Type: | Elastic |
Structure: | Slider |
Material: | Cast Steel |
Type: | Centralizer |
Samples: |
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Customization: |
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Product's advantage
Puyang Zhongshi designs the non-welded,one -piece construction centralizer,called single piece centralizer.
This kinds of centralizer is with higher strength than traditional bow spring centralizers,although we call it bow spring centralizer.
Our single piece centralizer performance is obviously better than any casing centralizers like bow spring centralizer and solid centralizer for casing running applications.
Our single piece centralizers have exceptional restoring force by pressional downhole tool lab,meeting even exceed API 10D bow spring centralizer test specification.
Generally speaking,Increasing restoring force of casing centralizer is by high grade spring steel and then doing some heat treatment,but in order to get higher restoring force and lower starting force,we redesign our bow which is like Chinese shuttle,the central part of centralizer bow combines higher restoring force.
At the same time,our spring bow of single piece centralizer can bear pressure repeatly.We use two kinds of coating technology,one is powder baking,other is paint baking,thes two is completed by high temperature,what we do is to make the centralizer beautiful from appearance and then have dust-free function.
Our single piece centralizer sizes are available from 4-1/2in to 20inch,any special sizes can meet your requirement according to casing and well hole size.
It is shipped in assembled condition only,when shipping them,in order to save space and shipment charges for customers,we usually put the smaller size centralizer into bigger size centralizer.
Specifications
Casing Size | Hole Size | Max O.D. | |
in. | in. | mm | in. |
20 | 24/26 | 650/714 | 25.591/28.110 |
18-5/8 | 22/24 | 590/680 | 23.228/26.772 |
16 | 20/22 | 550/613 | 21.654/24.132 |
14 | 18 | 484 | 19.055 |
13-3/8 | 17-1/2 | 470 | 18.504 |
12-3/4 | 17- 1/2 | 466 | 18.346 |
10-3/4 | 12-1/4 | 370 | 14.567 |
9-5/8 | 12-1/4 | 375 | 14.764 |
7-5/8 | 9-7/8 | 273 | 10.748 |
7 | 8- 1/2 | 252 | 9.921 |
6-5/8 | 8- 1/2 | 245 | 9.646 |
5- 1/2 | 8- 1/2 | 256 | 10,079 |
5 | 6- 1/2 | 190 | 7.480 |
4-1/2 | 6 | 181 | 7.126 |
We provided single piece centralizer is highly admired by our respected clients owing to its features like flexibility, operating fluency and many more. The offered piece centralizer is used to centralize casing during the cementing stage of oil wells. This provided piece centralizer is manufactured using the superb quality raw material and the latest technology
The Single piece centralizer can be installed with 2 stop rings, 1 internal stop ring or casing couplings. The blades, top and bottoms rings are made of one piece to ensure the centralizer s integrity during rig operations.
Welded Slip On Spring Bow Centralizer has the same Operation, General Design, Features and Characteristics as the Hinged Welded Centralizers. Collars are specially designed with roll formed peripheral ridges which provide extra rigidity. Slips On Centralizers are provided for direct installation on pipe by slipping on and can be providing with SetScrew for elimination of Stop collar. They are shipped in assembled condition only.
Both types Centralizers are available with combination of Bows configure from choice of seven standard Bow height for optimum Starting and Restoring Force. These centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder they are available in all sizes ranging from 4 ½ " to 20 ".
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