Multi-unit centralizer

Wells – Processes – Placing or shifting well part

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C166S241100, C175S325400, C175S325700

Reexamination Certificate

active

07048064

ABSTRACT:
A multi-unit centralizer for centralizing or otherwise positioning a tubing string in a well bore. The centralizer has a centralizer hub including multiple hub subunits for removably engaging each other and at least one spacer lug for removably engaging each of the hub subunits.

REFERENCES:
patent: 2252978 (1941-08-01), Parkin
patent: 2389906 (1945-11-01), Heard
patent: 2657907 (1953-11-01), Cochran et al.
patent: 2789870 (1957-04-01), Hanes
patent: 2813697 (1957-11-01), Swart
patent: 2973996 (1961-03-01), Self
patent: 3292708 (1966-12-01), Mundt
patent: 3370894 (1968-02-01), Pourchot
patent: 3447839 (1969-06-01), Salvatori
patent: 3680646 (1972-08-01), Hughes et al.
patent: 3963075 (1976-06-01), Evans
patent: 4076084 (1978-02-01), Tighe
patent: 4099564 (1978-07-01), Hutchison
patent: 4106823 (1978-08-01), Bassinger
patent: 4190124 (1980-02-01), Terry
patent: 4428626 (1984-01-01), Blau et al.
patent: 4520869 (1985-06-01), Svenson
patent: 5027914 (1991-07-01), Wilson
patent: 5487426 (1996-01-01), O'Hair
patent: 5740862 (1998-04-01), Sable
patent: 5881810 (1999-03-01), Reinholdt
patent: 6102118 (2000-08-01), Moore
patent: 6283205 (2001-09-01), Cannon
patent: 6367556 (2002-04-01), Moore
patent: 6435275 (2002-08-01), Kirk et al.
patent: 6464013 (2002-10-01), Bystedt
patent: 6516877 (2003-02-01), Terry

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-3639876

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.