Stainless Steel Straight Blade Set Screw Solid Roller Centralizer

• Customization: Available
• Certification: ISO 9001:2000, ISO 9001:2008, API
• Surface Treatment: Polishing
• Model NO.: screw
• Structure: Aluminium
• Material: Rigid/Nylon/Cast Aluminum/Idler Wheel
• Type: Heavy Crude Oil
• Height: 650
• Weight: 13
• Bow Number: 6
• Type1: Bow
• Type2: Slip on
• Color: as Requested
• Application: Oil Product
• Transport Package: Wf or Wc
• Specification: API
• Trademark: zhngshi
• Origin: China
• HS Code: 7302
• Production Capacity: 5000PCS/Year

Product Description

Product name: Casing centralizer

Product classification: Bow-spring centralizer, Rigid roller centralizer, Cast aluminum centralizer

Product overview:
Casing centralizer is one of the necessary conventional casing accessories, upon well operationscompletion, the rational use of casing centralizer can play the role of:
Reducing lower casing resistance phenomenon, making the casing smoothly down to the design position;
Making casing centralizer centered within the well|;
Reducing the sticking phenomenon to make the annular space hydrostatic pressure balanced;
Reduce channeling, improve the mud replacement efficiency, thus improve the cementing quality.

The reset force of double bow type centralizer is higher than that of single bow centralizer, centering centering performance is better than that of single bow type.

Bow-spring centralizer
1. These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical, Horizontal and Deviated well
2. Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the uniform hardness all over

3. Spec and performance index of bow spring casing centralizer meet API Spec 10D. The woven centralizer is connected by pin when in use, the unfolded centralizer can be stacked flatly for convenient storage and transportation.
Rigid roller centralizer
Rigid casing centralizer is used in deviated wells and horizontal wells. There are several blades on the rigid roller centralizerthat can keep casing from contacting the wellbore wall

Roller rigid centralizer which is most suitable for highly deviated wells and horizontal wells has two or three rollers in each blade. It can change slipping friction to rolling friction, so the Roller rigid centralizer greatly reduces the friction between casing and wellbore wall and let casing go to desired position smoothly
Cast aluminum centralizer:
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

No.	Type	Inside diameter (mm)	Height (mm)	Total height (mm)	Largest diameter (mm)
1	5 "*12-1/4"	128-131	105	690	330
2	5 "*20"	128-131	105	720	535
3	5-1/2 "*7"	142-148	55	650	215
4	5-1/2 "*8-1/2"	142-148	55	650	225
5	6 "*8-1/2"	156-158	55	650	235
6	7 "*8-1/2"	181-186	55	650	235
7	7 "*9-5/8"	181-186	55	650	255
8	7-5/8 "*9-5/8"	197-201	55	650	275
9	9-5/8 "*12-1/4"	250-255	55	650	330
10	13-3/8 "*17-1/2"	342-347	55	650	450
11	5-1/2 "*8-1/2"	142-148	110	650	225
12	7 "*9-5/8"	181-186	110	650	255
13	7 "*8-1/2"	181-186	110	650	235
14	5 "*6-1/2"	128-131	110	650	175
15	7-5/8 "*9-1/2"	196-200	110	650	250
16	10-3/4 "*12-1/4"	274-276	110	650	330
17	5 "*6-1/4"	130-132	110	650	170
18	9-5/8 "*12-1/4"	250-255	110	650	330
19	13-3/8 "*17-1/2"	342-347	110	650	450
20	5-1/2 "*8-1/2"	142-148	55	650	225

 

No.	Specification	Bow Type	ID(mm)	Length (mm)	Max. O.D (mm)	Bow Spring
1	5-1/2"*8-1/2"	I,II	142-148	650±50	225±5	5
2	7"*8-1/2"	I,II	181-186	650±50	235±5	6
3	9-5/8"*12-1/4"	I,II	250-255	650±50	330±5	8
4	10-3/4"*12-1/4"	I,II	274-276	650±50	330±5	9
5	13-3/8"*17-1/2"	I,II	342-347	650±50	450±5	11
6	20"*26"	I,II	510±1	600±50	660±5	12