Apparatus for use in maintaining a well pipe centered within a w

Details Apparatus for use in maintaining a well pipe centered within a w Apparatus for use in maintaining a well pipe centered within a w

1981-01-15

1982-12-14

Pate, III, William F.

Wells

Guide for device or conduit

On sucker or pump rod

411393, E21B 1710

Patent

active

043633609

ABSTRACT:
There is disclosed apparatus for use in maintaining a well pipe centered within a well bore, including a centralizer adapted to be disposed about the pipe, and stop collars above and below the centralizer for limiting endwise movement of the centralizer as a whole, while permitting its outwardly bowed springs to expand and contract.

REFERENCES:
patent: 1831856 (1931-11-01), Fullmen
patent: 2903073 (1959-09-01), Coyle
patent: 2986417 (1961-05-01), Baker
patent: 3200884 (1965-08-01), Solum et al.

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