• Model NO.：7 " & 9 5,8" & 13 3,8"
• Sample：Available
• Color：Red,Orange,Black
• Drawing：Available
• Spec：4 1 ,2"-20"
• ODM：Available
• Certificate：API 10d
• OEM：Available
• Markings：Available
• Transport Package：Wood Cases
• Specification：4 1,2"-20"
• Trademark：zhongshi
• Origin：Henan, China
• HS Code：843143100
• Production Capacity：10000PCS,Month

Basic Info.

Model NO. 7 " & 9 5/8" & 13 3/8" Sample Available Color Red/Orange/Black Drawing Available Spec 4 1 /2"-20" ODM Available Certificate API 10d OEM Available Markings Available Transport Package Wood Cases Specification 4 1/2"-20" Trademark zhongshi Origin Henan, China HS Code 843143100 Production Capacity 10000PCS/Month

Product Description

                                          9 5/8" hinged non weld bow spring centralizer


 Hinged Non Weld Bow Spring Centralizers are designed for high restoring force combined with low starting force for centralizing the casing pipe in vertical, deviated and horizontal wells. 

Feature

 1)Bows can be configured for any hole dia from choice of five standard bow heights for optimum starting and restoring forces. 

2)Compatibility of the bows with various end collar sizes reduces inventory requirements and provides tremendous flexibility of casing and hole size combinations. 

3)Centralizers undergo a special process of rust prevention before painting .















 
Our Services    Weld casing centralizer

Model (in)	Hooping In-Dia. (mm)	Hooping Thickness (mm)	Hooping Height (mm)	Total Length (mm)	Max. Out-Dia. (mm)	Spring Pieces
5-1/2*8-1/2	142-148	5-7	50-60	650±50	225±5	5
6*8-1/2	154-158	5-7	50-60	650±50	255±5	5
13-3/8*17-1/2	342-349	8	50-60	580	450±5	6
20*26	510-518	8	50-60	650±50	670±5	10

This integral one-piece bow spring centralizer is a high-end centralization product. The 
centralizers are built to gauge to offer easier, RIH, maximize standoff, and maximize the cement job. The centralizers are built mostly for passing through close tolerance situations and then opening back up into under reamed holed sections, or washed out  sections, while still providing quality stand-off  performance. Bow spring sections are based on a straight bladed principle, but are curved in both axial and tangential directions. This cross curvature conforms to the borehole wall, while the axial curvature changes proportionally as it encounters different loads. As the loads increase, the surface contact area also increases, reducing the load per square unit of area. This helps avoid compression and shear failure of the formation surface.
Our non-welded bow spring casing centralizer is made of spring steel which
 
has been heat teated and hardened tempered to ensure proper and consistent
 
spring characteristics.
 
2) End collar hinges are folded toward inside. This way will minimize the collar
 
stretch taht tends to occur when centralizers encounter tapers, commonly found
 
in certain type of pipe connections.
 
3)A reinforcing rib stamped into the end collar. This way will strengthen and
 
preserve it's round configuration during transport.
 
4)Several different spring bow heights that are available to accommodate most
 
of casing-to-hole configuration.
 
5)Centralizers with built-in stop devices as well as those of uncommon sizes are
 
available based on request.


 
  Non-weld casing centralizer 
 

Model (in)	Hooping In-Dia. (mm)	Hooping thickness (mm)	Hooping Height (mm)	Total Length (mm)	Max. Out-Dia. (mm)	Spring Pieces
5-1/2*8-1/2	142-148	3-5	90-120	650±50	225±5	5
7*9-5/8	181-186	3-5	90-120	650±50	255±5	6
7*8-1/2	181-186	3-5	90-120	650±50	235±5	6
8-5/8*12-1/4	223-228	3-5	90-120	650±50	330±5	8
9-5/8*12-1/4	250-255	3-5	90-120	650±50	330±5	8
10-3/4*12-1/4	274-276	3-5	90-120	650±50	330±5	9
13-3/8*17-1/2	342-347	3-5	90-120	650±50	450±5	11
18-5/8*24	476±1	3-5	90-120	600±50	610±5	12
20*26	510±1	3-5	90-120	600±50	660±5	12