Low heat conductive frangible centralizers

Details Low heat conductive frangible centralizers Low heat conductive frangible centralizers

1976-07-19

1978-07-11

Purser, Ernest R.

Wells

Guide for device or conduit

On sucker or pump rod

260 37R, 260 4243, E21B 1710

Patent

active

040995640

ABSTRACT:
Low heat conductive frangible centralizers are provided for use in a tubing string in a well and include a central tubular section connectable into the tubing string and having a plurality of radially extending polymerized furfuryl alcohol impregnated cordierite lugs in spaced apart position on the periphery of the tubular section with means to disconnectably connect such lugs on the tubular section.

REFERENCES:
patent: 329968 (1885-11-01), Stopper
patent: 459826 (1891-09-01), Cook
patent: 1552888 (1925-09-01), Smith
patent: 1814271 (1931-07-01), Vaughn
patent: 2153787 (1939-04-01), Anderson
patent: 3080926 (1963-03-01), Remp, Jr.
patent: 3292708 (1966-12-01), Mundt
patent: 3487043 (1969-12-01), Grudus
patent: 3613783 (1971-10-01), Seabourn
patent: 3666013 (1972-05-01), Saadeh
Chemical Abstracts; vol. 81, #153683x; Kimio et al.; 1974.
Chemical Abstracts; vol. 79, #93148y; Roscher; 1973.
Lee et al.; Handbook of Epoxy Resins; McGraw-Hill Co.; 1967; pp. 14-2,3,4,5.

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