Solid Body Rigid Cast Aluminum Casing Centralizer
Centralizers are an integral part of the cementing process. They provide the mechanism that centers the casing in the hole and allows uniform cement flow around the casing to help protect it at all points. Several styles of centralizers are available for matching different well specifications and hole sizes, including turbulence generating designs that help clean the annulus and distribute the cement more evenly and uniformly. All models offer ample clearance for fluid passage and are extra effective in centering the casing, even in highly deviated holes and improve cement flow by reducing the effects of channeling.
Features
1. Spiral blades increase annular turbulence.
2. With the shape of stream-lined, it enables casing run easily in wellbore.
3. Both straight blade and spiral blade are available.
4. The material can be cast steel or cast aluminum.
This centralizer should be used in areas where a good primary cementing job is required, including deviated and horizontal wells, liner overlaps, and shoe joints. They are suitable for either cased or open hole. These are made of high tensile, solid, cast aluminum, for shock, impact, and corrosion resistance.
Vane ends are beveled 30 degrees relative to casing centerline to provide excellent lead into restrictions, and reduced drag when running into hole. Wide vanes distribute load from the casing string into the wellbore without gouging. It is made of softer material than wellhead equipment to avoid damage to the wellhead when running through. Has provided excellent results in extended reach and horizontal applications. The design of the vanes keeps running forces at a minimum. Any special sizes or combination can available on request.
Technical Parameter:
| Specification |
In-Dia(mm) |
Wall
Thickness
(mm) |
Height(mm) |
Total height(mm) |
Largest Dia(mm) |
Spring Number |
| 5-1/2"*8-1/2" |
142-148 |
3-5 |
55 |
650 |
225 |
5 |
| 7"*9-5/8" |
181-186 |
3-5 |
55 |
650 |
255 |
6 |
| 7"*8-1/2" |
181-186 |
3-5 |
55 |
650 |
235 |
6 |
| 8-5/8"*12-1/4" |
223-228 |
3-5 |
55 |
650 |
330 |
8 |
| 9-5/8"*12-1/4" |
250-255 |
3-5 |
55 |
650 |
330 |
8 |
| 10-3/4"*12-1/4" |
274-276 |
3-5 |
55 |
650 |
330 |
9 |
| 13-3/8"*17-1/2" |
342-347 |
3-5 |
55 |
650 |
450 |
11 |
| 18-5/8"*24 |
476 |
3-5 |
55 |
600 |
610 |
12 |
| 20"*26 |
510 |
3-5 |
55 |
600 |
660 |
12 |
The smooth spiral 360 overlap solid vane design of centralizers provide max wall contact will not damage wellhead equipment, has high impact and shock resistance comand fluid swirl. The 30slope from the body to the height of the vane will eliminate scraping, or digging into the formation.
The solid cast aluminum centralizers bine with high tensile and yield strengths.
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