Centralizer for elastomer coated blast joint

Details Centralizer for elastomer coated blast joint Centralizer for elastomer coated blast joint

1975-03-27

1976-06-15

Novosad, Stephen J.

Wells

Guide for device or conduit

On sucker or pump rod

E21B 1710

Patent

active

039630757

ABSTRACT:
A centralizer for an elastomer coated blast joint includes an elastomer body having a split extending longitudinally thereof with an opening extending centrally and longitudinally through the body. A plurality of circumferentially equidistant spaced, longitudinally extending projections are integrally formed on the body and extend from the elastomer body to aid in centralizing and positioning a blast joint adjacent a perforate section of a tubular member in a well bore.
A plurality of longitudinally spaced rings are molded in the body adjacent the opening with the rings split to coincide with the split in the elastomer body and include portions extending substantially at right angles to the rings with openings therethrough whereby securing means such as a screw or the like may be engaged therethrough for securing and positioning the elastomer body on the blast joint.

REFERENCES:
patent: 2145336 (1939-01-01), Boyd
patent: 2813697 (1957-11-01), Swart
patent: 2944608 (1960-07-01), Rush
patent: 3148004 (1964-09-01), Hall et al.
patent: 3197262 (1965-07-01), Fairchild
patent: 3397017 (1968-08-01), Grant et al.
patent: 3410613 (1968-11-01), Kuus
patent: 3709569 (1973-01-01), Napper

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