Releasing tool

Details Releasing tool Releasing tool

1978-05-01

1979-11-27

Callaghan, Thomas F.

Pipe joints or couplings

Frangible element

166125, 285 18, E21B 2300, F16L 3714

Patent

active

041757785

ABSTRACT:
A releasing tool for use in gravel packing operations comprising case means for releasably attaching the releasing tool to a tubing string, releasing block means retained within the case means for releasably attaching the releasing tool to the hook-up nipple of a gravel pack screen assembly and releasing mandrel means slidably disposed within the case means for alternately allowing the releasing block means to engage and disengage the hook-up nipple of a gravel pack screen assembly.

REFERENCES:
patent: 2315931 (1943-04-01), Burt et al.
patent: 2409811 (1946-10-01), Taylor, Jr. et al.
patent: 2843399 (1958-07-01), Arterbury et al.
patent: 2980185 (1961-04-01), Daffin
patent: 3037797 (1962-06-01), Brown
patent: 3051244 (1962-08-01), Litchfield
patent: 3148894 (1964-09-01), Schwab
patent: 3827258 (1974-08-01), Kammerer, Jr. et al.
patent: 4018284 (1977-04-01), Perkins
patent: 4089548 (1978-05-01), Gurley

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