Process and device for the centering of casings as used for unde

Details Process and device for the centering of casings as used for unde Process and device for the centering of casings as used for unde

1979-04-09

1981-10-20

Leppink, James A.

Wells

Valves, closures or changeable restrictors

24240, 166 775, 175 85, 269 43, 33180R, B25B 120, E21B 1916

Patent

active

042955270

ABSTRACT:
A casing clamp and guide arrangement to permit ease of centering and securing of the next section of pipe casing to a downhole string comprising an elongated stable member having clamp means at either end with one clamp adapted to engage the top of the uppermost downhole pipe casing and the other clamp adapted to clamp and stabilize the next pipe casing section into coaxial alignment for threadable connection therewith.

REFERENCES:
patent: 1187665 (1916-06-01), Simms
patent: 2450934 (1948-10-01), Calhoun
patent: 2540451 (1951-02-01), Kelley
patent: 3576062 (1971-04-01), Matherne
patent: 3633771 (1972-01-01), Woolslayer et al.
patent: 3668766 (1972-06-01), Carter et al.
patent: 4047897 (1978-02-01), Behn
patent: 4051587 (1977-10-01), Boyadijieff

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