API 10d Hinged Non Welded Bow Spring Centralizer

• Certification: ISO 9001:2000, ISO 9001:2008
• Surface Treatment: Spray-Paint
• Centralizer Type: Elastic
• Structure: Slider
• Material: Cast Steel
• Type: Centralizer
• Model NO.: 4 1/2"-20"
• Size: 4 1 /2"-20"
• Sample: Available
• Color: Red/Orange/Black
• ODM: Available
• Drawing: Available
• Markings: Available
• Height: 350mm
• Bows: 6PCS
• Transport Package: Wood Cases
• Specification: 4 1/2"-20"
• Trademark: zhongshi
• Origin: Henan, China
• HS Code: 843143100
• Production Capacity: 20000PCS/Month

Product Description

                                API 10D Hinged Non Welded Bow  Spring Centralizer

PRODUCT NAMEHINGED WELDED STANDARD SPIRAL BOW SPRING CENTRALIZER

Rating	non-API. Some sizes meet or exceed API Specification 10D.
Design appearance	hinged design with smooth spiral bow profile with LH or RH deflection.
Performance	acceptable restoring force achieved and minimum starting force.
Applications	- Used in most types of well designs and wells with less stringent well design requirements. - Smooth running capabilities - Less susceptible to tracking key seats. - Recommended for minor restrictions
Sizes available	4 1/2 to 26 in.
Minimum hole size	6 in.
Maximum hole size	16 in.

API 10D Slip-on Single Bow Spring Casing Centralizer, One Piece Casing Centralizer in oilfield
 
1) Material: 65Mn steel
 
2) Type: welded and non-welded
 
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)Application
Bow spring centralizers are to help center the casing in the wellbore, allowing even distribution of the cement around te casing during cementing operations.
 
7) Function
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.
e. Reset force of double-bow casing centralizer is higher than sigle-bow casing centralizer's, and centralization performance is stronger.





 
Features:
1. Starting and restoring force confirm to API Standard.
2. More flexibility as comparison to other spring bow centralizer
3. Greater centering efficiency
4. Higher Stand Off.
5. 360° wall coverage for increased load bearing area.
 
Available Size: 4-1/2" to 20".











Main Technical data:
 

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

Features of Bow Spring Casing Centralizer:
a. Designed for high restoring force and low starting & running force
b. The larger bows provide complete centralization in vertical or slightly deviated wells.
c. Due to the flexibility of bows, they can pass through narrow hole sections and expand in the targeted locations.
d. Undergo special coating process to prevent from rust
e. For hinged bow spring casing centralizers, end collars are designed with self-locking action, which are easy to assemble and can be shipped in half assembled condition for less shipping and storage costs.
 
f. The double bow casing centralizer permits compression to facilitate movement through tight spots and dog legs. Compared to other spring bow centralizers, this structure attains higher stand-off because of its higher restoring force.