API 7"X 8 1/2" Bow Spring Casing Centralizer

• Customization: Available
• Certification: ISO 9001:2000, ISO 9001:2008
• Surface Treatment: Spray-Paint
• Model NO.: 7"*8 1/2"/7"* 8 3/4"/7"* 9 5/8"
• Centralizer Type: Elastic
• Structure: Slider
• Material: Carbon Steel
• Type: Centralizer
• Free Sample: Available
• Size: 4 1 /2"-20"
• Drawing: Available
• ODM: Available
• OEM: Available
• Color: Red
• Height: 350mm
• Bows: 6PCS
• Transport Package: Wood Cases
• Specification: 7"&9 5/8"&13 3/8"
• Trademark: zhongshi
• Origin: Henan, China
• HS Code: 843143100
• Production Capacity: 10000PCS/Month

Product Description

                                        API   7"x 8 1/2" Bow Spring Casing Centralizer
 
1.These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical, Horizontal and Deviated well.

2.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.

3.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.

Rigid roller centralizer
Rigid casing centralizer is used in deviated wells and horizontal wells. There are several blades on the rigid roller centralizerthat can keep casing from contacting the wellbore wall.
 





What is the advantages 
 

1) Designed for high restoring force and low running force.
2) End collars are designed with self-locking action, which are easy to assemble.
3) Undergo special coating process to prevent from rust.
4) Can be shipped in half assembled condition for economy in shipping and storage costs.
Featrues:
1,Our newest design has features making them ideal for both tubing and casing applications:
2,The non-weld design eliminates any weak spots.
3,Tapered pin hold the bows and hinges in the collars
4,High-quality, super-strengthen spring-steel bows and especialy designed collar hinges provide reliable downhole performance.
5,The whole casing centralizer is made without any rivet and no welding.
6,The whole casing centralizer is composed of 3 parts, the spring, the hinges and tapered pin.
7,Easy for installation and transport
 
8,Conform to API 10D standard










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