API Casing Oilwell Hydroform Rigid Centralizers

• Certification: ISO 9001:2000, ISO 9001:2008, API 10d
• Surface Treatment: Spray-Paint
• Centralizer Type: Rigid
• Structure: Slider
• Material: Cast Steel
• Type: Centralizer
• Model NO.: 4 1/2′′*6′′
• Sample: Available
• Drawings: Available
• Height: 200mm
• Blades: 4-5PCS
• Markings: Available
• Transport Package: Wood Cases
• Specification: 4 1/2′′*6′′
• Trademark: ZHONGSHI
• Origin: China
• HS Code: 843143100
• Production Capacity: 6000PCS/Month

Product Description

                        API Casing Oilwell Hydroform Centralizers


Rigid centralizers are built out of solid steel bar or cast iron, with a fixed blade height and are sized to fit a specific casing or hole size. This type is rugged and works well even in deviated wellbores, regardless of the side force. They provide a guaranteed standoff and function as bearings during the pipe rotation, but since the centralizers are smaller than the wellbore, they will not provide a good centralization as the bow-spring type centralizers in vertical wells.
 
These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical, Horizontal and Deviated well.
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.

Parameters:
 
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

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