Casing centralizer

Details Casing centralizer Casing centralizer

2005-03-29

2005-03-29

Bagnell, David (Department: 3672)

Wells

Guide for device or conduit

Surrounding existing device or tubing

Reexamination Certificate

active

06871706

ABSTRACT:
A casing centralizer having a pair of longitudinally spaced collars adapted to be assembled about a conduit, and a plurality of outwardly bowed springs extending longitudinally between the collars. Each collar has internal and external upsets formed therein. The external upsets are generally U shaped to receive the end of the bow spring. Each bow spring has an opening at each end thereof adapted to receive the internally upset material, with the internally upset material so formed to extending into the bow spring opening thereby locking the end portion of the bow spring within the externally formed U shaped upsets.

REFERENCES:
patent: 3356147 (1967-12-01), Dreyfuss
patent: 4042022 (1977-08-01), Wills et al.
patent: 4143713 (1979-03-01), Kreft
patent: 4269269 (1981-05-01), Wilson
patent: 4520869 (1985-06-01), Svenson
patent: 4651823 (1987-03-01), Spikes
patent: 4909322 (1990-03-01), Patterson et al.

Affiliated with

Also associated with

Rating

Casing 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 Casing centralizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casing centralizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3391966