FEATURES
1.Rib Design(U Sharped) for Fluid Flowing Easily
2.Nearly 100% Stand Off in Cased-hole Application
3.With the Higher Restoring Force to Drag Ratio
4.Powder Baking Coating
5.Interlock between Collar and Bow
Product's advantage
This kinds of rigid positive centralizer requires concentric casing strings,where used in deviated well and horizontal well.
The featured U-profile design is easy to keep the fluid flow at nearly 100% stand off,generally speaking,it is at 67% stand off,so it is more effective than conventional bow spring centralizer in cementing job.
The design of rigid positive centralizer can reduce the frictional drag when used in casing running.
The bow is made of high grade alloy steel like 65Mn steel,it is to increase the restoring force,according to fluid density and quantity in the well ,we can change the U profile height and depth.
For collar of rigid positive centralizer,we still use the same technology as general bow spring centralizer.
The rigid bow can be holed in place by lock tab on the collar,the collar plate can be connected by hinged style,so it is very simple to install on the casing.
The forms of non welded desgin has much more high standoff forces than welded type rigid positive centralizer.
Our rigid positive centralizer is powder baking coating in the high temperature in order to keep the centralizer beautiful and keep it dust free.
For highed rigid positive centralizer during shipment,we can unfold all the centralizers in the wooden case,it will reduce the shipment charges.
Both hinged and slip on type rigid positivie centralizer are available.
Our rigid positive centralizer sizes are from 4-1/2inch to 20inch,any special sizes are available according to your requirement
Specifications:
Model
(in) |
Hooping I.D.
(mm) |
Hooping Thickness
(mm) |
Hooping Height (mm) |
Total Length (mm) |
Max. O.D. (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 |
Our Services
Our products and services are closely related to oil drilling and oil well cementation. Our products include integral casing centralizer, welded casing centralizer, bow spring centralizer, float shoe, float collar, Suck Rod Pump, api pumping unit, Thread Protector, Thread Gauge, Api Valve Ball and Valve Seat, coupling and pump plungers.
Packing and Shipping
Wooden case, standard export packaging, firm enough for long distance sea-shipped, air transportation and even railway transportation.
company information
Restructured from SINOPEC in 1997, Puyang Zhongshi Group Co., Ltd has 20 years manufacturing experience of petroleum machinery products till now, we have competitive prices of our main products of casing accessories like bow spring centralizer, solid rigid centralizer,float equipment, cementing plug ,sucker rod pump ,pumping unit etc.
We have 9 factories, more than 500 employees, and many kinds of production equipments.
We have certificates of API 5CT,6A,10D,11AX,11E, ISO 14001 and 9001.
With 10 years exporting experience,we have exported to more than 30 countries such as America,Canada,Russia,Venezuela,Columbia,Thailand,Indonesia ,UAE,Saudi Arabia,Kazakhstan etc.
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