ADI centralizer

Details ADI centralizer ADI centralizer

2005-01-25

2005-01-25

Dang, Hoang (Department: 3672)

Wells

Guide for device or conduit

Surrounding existing device or tubing

C166S241100, C175S325100, C175S325500

Reexamination Certificate

active

06845816

ABSTRACT:
A centralizer for use in centralizing casing or other tubulars such as tubulars in an oil or gas well comprising an annular body with a bore extending through the body and one or more blades, the centralizer being adapted to fit around a tubular to be centralized, and comprising a tempered metal such as austemperized ductile iron (ADI).

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American Society for Metals,ASM Metals Handbook: Properties and Selection; Irons, Steels, and High Performance Alloys, 10thed., vol. 1 (ASM, Apr. 1990), contents page, p. 42.
American Society for Metals,ASM Specialty Handbook: Cast Irons(ASM, 1996), contents page, pp. 197-199.

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