Wells – Guide for device or conduit – On sucker or pump rod
Patent
1987-11-27
1989-01-03
Novosad, Stephen J.
Wells
Guide for device or conduit
On sucker or pump rod
175325, E21B 1710
Patent
active
047949864
ABSTRACT:
A reticulated centralizing apparatus and methods for its use. The apparatus has a plurality of pairs of collars or cages and a plurality of springs or bows connected to and extending between the collars or cages. The bows of one pair of collars pass over one collar of another pair of collars. The bows can be alternated singly or in groups and one pair of collars may have a certain number of bows different from the number of bows associated with another pair of collars.
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Novosad Stephen J.
Weatherford U.S. Inc.
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