Wells – Guide for device or conduit – Surrounding existing device or tubing
Reexamination Certificate
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).
REFERENCES:
patent: 1807050 (1931-05-01), Stolz
patent: 2166116 (1939-07-01), Bettis
patent: 3692109 (1972-09-01), Grayson
patent: 4081203 (1978-03-01), Fuller
patent: 4088185 (1978-05-01), Carson
patent: 4664206 (1987-05-01), Butler
patent: 4913230 (1990-04-01), Rivas et al.
patent: 5031709 (1991-07-01), Fischer
patent: 5095981 (1992-03-01), Mikolajczyk
patent: 5334268 (1994-08-01), Hermanson et al.
patent: 5853199 (1998-12-01), Wilson
patent: 5937948 (1999-08-01), Robbins, III
patent: 6039127 (2000-03-01), Myers
patent: 6250180 (2001-06-01), Legner et al.
patent: 0064730 (1982-11-01), None
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.
Barron William
Clark Allstair Bertram
Kirk Ian Alastair
Newton Barry
Rimmer Arron
Blackwell Sanders Peper Martin LLP
Dang Hoang
Downhole Products PLC
LandOfFree
ADI centralizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with ADI centralizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ADI centralizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3414044