4 1 /2 inch solid casing centralizer

4 1 /2"  spiral solid casing centralizer weatherford 

As one useful cement tool, rigid centralizer enables casing run easily in wellbore with its shape of stream-lined. There are two kinds of Rigid Centralizer available: spiral blade rigid centralizer and straight blade centralizer.

The material for both kinds of centralizers can be cast steel or cast aluminum.

All of our Centralizers/Spiralizers are fully welded and inspected
both inside and out for ease of operation to expedite your assembly in the field.

We make Centralizers, Turbolizers and Spiralizers for your casing 
in stock 4, 4 1/2, 5, 5 1/2, 7, and 7 5/8 inch inside diameters with your specified
 outside diameter and configuration in both sliding and fixed configurations!

We manufacture a large variety of sizes and usually stock the common 4 1/2 *6 5/8 and the 5 1/2 * 7 7/8 Spiral Centralizers !

Specification	ID(mm)	Wall Thickness (mm)	Height(mm)	Total height(mm)	MAX-OD(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

Non-Rotating Cementing Wiper Plugs/anti-rotating cementing rubber plug

             9 5/8 inch non -rotating top and bottom rubber plugs 

The cementing plug is used to separate the cement slurry from the mud. It can prevent the mud from blending into the cement slurry to influece the cementing quality.

Structure:

There are two kinds of cementing plug: conventional cementing plug and special cementing plug. Conventional cementing plug is divided into top plug and bottom plug. Special plug has top/middle/bottom plug used in two-stage cementing, drill pipe plug and hollow plug used in drilling liner cementing and composite plug used in composite casing.

Structure features: 

1.The top plug is solid. The bottom plug is hollow. They can all be drilled out with PDC bits.

2.The material of the plug body is acrylonitrile- butadiene rubber. It is heat-resisting and tough. 

3.Special materials designed for easy drill out with PDC bits

4. Normal and non-rotating type can be available

5. The non-rotating type can save the drilling time

6. Size: 4 1/2"--20":

Specification:

Casing size(in)	casing weight range		Wiper Fin O.D
	mm	in	mm	in
4 1/2"	14.14-17.26	9.50-11.60	110	4.331
5"	17.11-35.86	11.50-24.10	122	4.803
5 1/2"	20.83-39.88	14.00-26.80	135	5.315
7"	25.30-56.55	17.00-38.00	170	6.693
7 5/8"	35.72-63.69	24.00-42.00	185	7.283
9 5/8"	53.57-79.62	36.00-53.50	235	9.252
10 3/4"	60.27-97.77	40.50-65.70	260	10.236
13 3/8"	71.43-107.15	48.00-72.00	333	13.110
20"	139.89-197.93	94.00-133.00	498	19.606