Name: API Straight bow casing centraliser, hinged non-welded positive centraliser
Brand: Zhongshi
Availability: InStock

Product Details

Product Description

API Straight bow casing centraliser, hinged non-welded positive centraliser

1) Material: Steel and 65Mn

2) Type: positive casing centraliser

3) API and ISO certified
4) Specifications: 4 1/2''---20''. More special sizes or combination are available as requested.

Hinged Positive Casing Centraliser:

Woven Casing Centraliser:

Disassembled Straight Bow Casing Centraliser:

5) Introduction

Casing centralizers are to help center the casing in the wellbore, allowing even distribution of the cement around the casing during cementing operations.

The positive casing centralizers are uniquely designed with flat bottom U profile of different depths permitting maximum fluid passage.

6) Application

a. Used in most types of well designs.

b. Most suited for horizontal and directional well designs; favorable in cased hole situation.

7) Features:

a. With straight bows for casing operations, this device provides extremely high stand-off (concentricity) when run inside.

b. Permitting maximum fluid passage.

c. The installation is very convenient by setting two halves on the piece and inserting the pin in the end collar hinge.

d. The disassembled centralizers make a compact package, greatly reducing shipping cost.

8) Parameter of Casing Centralizers

Model	Hooping In-Dia. (mm)	Hooping thickness(mm)	Total length	Max.Out-Di	Amount of spring(mm)
(in)	Hooping In-Dia. (mm)	Hooping thickness(mm)	(mm)	(mm)	Amount of spring(mm)
5-1/2" x 8-1/2"	142-148	3-5	650±50	225±5	5
7" x 9-5/8"	181-186	3-5	650±50	255±5	6
7" x 8-1/2"	181-186	3-5	650±50	235±5	6
8-5/8 x 12-1/4"	223-228	3-5	650±50	330±5	8
9-5/8 x 12-1/4"	250-255	3-5	650±50	330±5	8
10-3/4 x 12-1/4"	274-276	3-5	650±50	330±5	9
13-3/8"x17-1/2"	342-347	3-5	650±50	450±5	11
18-5/8"x24"	475-477	3-5	600±50	610±5	12
20"x26"	509-511	3-5	600±50	660±5	12

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