Remotely operated coupling and well devices employing same

Details Remotely operated coupling and well devices employing same Remotely operated coupling and well devices employing same

1980-02-11

1981-11-03

Pate, III, William F.

Wells

Above ground apparatus

Well caps or casing heads

285 18, 285319, E21B 33035

Patent

active

042980640

ABSTRACT:
A coupling device, especially for well tools, for connecting a load, such as a tubing hanger from which tubing strings depend, to an upper member, such as a handling tool, from which the load is to be suspended, with capability of remote operation of the coupling device to disconnect the load and to reconnect. To provide heavy load capability when only a relatively small space is available for the coupling, coupling segments of generally C-shaped radial cross section are employed, the segments being actuated by a piston moved axially of the coupling.

REFERENCES:
patent: 3222088 (1965-12-01), Haeber
patent: 3492027 (1970-01-01), Hevrin
patent: 3554579 (1971-01-01), Brown
patent: 3608932 (1971-09-01), Brown
patent: 4057267 (1977-11-01), Janser, Jr.

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