Casing centralizer

Details Casing centralizer Casing centralizer

1988-09-29

1989-10-24

Dang, Hoang C.

Wells

Guide for device or conduit

On sucker or pump rod

E21B 1710

Patent

active

048755249

ABSTRACT:
A semi-rigid floating spring type centralizer for use in deviated, highly deviated or horizontal well bores, the centralizer comprising a cylindrical tubular housing having a plurality of floating centralizer springs retained thereon.

REFERENCES:
patent: 2248160 (1941-07-01), Crawford
patent: 2874783 (1959-02-01), Haines
patent: 3055432 (1962-09-01), Park
patent: 3556042 (1971-01-01), Laughlin
patent: 4011907 (1977-03-01), Clay
patent: 4219081 (1980-08-01), Howe

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