9 5/8" Casing Bow Spring Integral Centralizers

• Certification: ISO 9001:2000, API
• Surface Treatment: Spray-Paint
• Centralizer Type: Elastic
• Material: Alloy
• Type: Centralizer
• Sample: Avaliable
• Model NO.: ZS69
• OEM: Acceptable
• Features 1: High Restoring Force
• Features 2: Only Two Weld Point
• Transport Package: Wooden Case
• Specification: standard 4 1/2′′~20′′
• Origin: Henan
• HS Code: 8431
• Production Capacity: 5000 Piece/Pieces Per Month

Product Description

One Piece Pipe Construction Bow Spring Integral Centralizers
 

Model (in)	Hooping In-Dia.  (mm)	Hooping thickness (mm)	Total length (mm)	Max.Out-Dia (mm)	Amount of spring (mm)
5-1/2" x 8-1/2"	142-148	3-5	650±50	225±5	5
7" x 9-5/8"	181-186	3-5	650±50	255±5	6
7" x 8-1/2"	181-186	3-5	650±50	235±5	6
8-5/8 x 12-1/4"	223-228	3-5	650±50	330±5	8
9-5/8 x 12-1/4"	250-255	3-5	650±50	330±5	8
10-3/4 x 12-1/4"	274-276	3-5	650±50	330±5	9
13-3/8"x17-1/2"	342-347	3-5	650±50	450±5	11
18-5/8"x24"	475-477	3-5	600±50	610±5	12
20"x26"	509-511	3-5	600±50	660±5	12

 

1. Feature of Integral Casing Centralizer
1) Material: 65Mn steel
2) Type: Single Piece Bow Spring Casing Centralizer
3) Standard: API 10D
4) API and ISO certified
5) Specifications: 4 1/2''---20''. More special sizes or combination are available as requested.
6) High Restoring Force:  This kind of single piece casing centralizer has restoring force about 198% higher than API standard. 
 
2. Application of Integral Casing Centralizer
Bow spring centralizers are to help center the casing in the wellbore, allowing even distribution of the cement around te casing during cementing operations.
 
3. Function of Integral Casing Centralizer
a. Take casing to designed position by reducing sticking while casing going down.
b. Centralize casing in well.
c. Balance liquid pressure in annular space by reducing adhesion phenomenon.
d. Improving replacing ratio of mud and boosting cementing quality by reducing channeling effect.
 
4. Advantage of Integral Casing Centralizer
a. Designed for high restoring force and low starting&running force
b. Undergo special coating process to prevent from rust
c. Averagely 198% higher restoring force than API standard.