API Welded Bow Flexible Centralizer for Casing & Drilling

• Certification: API
• Surface Treatment: Spray-Paint
• Centralizer Type: Elastic
• Structure: Automatic Reversing
• Material: Alloy
• Type: Centralizer
• Model NO.: flexible centralizer
• Classification: Hinged, Welded, Bow Spring
• Transport Package: Pallets
• Specification: 5 1/2" --- 20"
• Trademark: MED
• Origin: China
• HS Code: 7307
• Production Capacity: 10000 PCS/Year

Product Description

API Welded Bow Flexible Centralizer for Casing & Drilling

1. Type: Bow Spring Centralizer
 
2. Materials:  65Mn steel, carbon steel, or others as required
 
3. Standard: API, or others as required
 
4. Specifications: 4 1/2''--- 20'', or others as required

5. Introduction
Bow spring centralizer is used to keep casing in the central place of wellbore in cementing process, making cement to be evenly distributed around casing string. It has high restoring capacity, which is determined by the shape and stiffness of its bows.
 
6. Characteristics
1) Has high restoring force and low starting and running force;
2) Mostly be used in vertical or slightly deviated wells;
3) Be capable to pass through narrow hole sections and expand in the targeted locations;
4) Be anti-corrosive after special coating process.
 
7. Parameters

Model (In)	In-Dia.  (mm)	Thickness (mm)	Length (mm)	Out-Dia (mm)	Number of bows
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

Hinged welded bow spring centralizer