Latch for well tool

Details Latch for well tool Latch for well tool

1981-02-02

1983-04-12

Purser, Ernest R.

Wells

Expansible anchor or casing

Expansible means translated by wedge or cam

166216, 166137, 294 8618, 285141, E21B 2302

Patent

active

043794882

ABSTRACT:
An improved latch device for releasably locking in a recess in a well flow conductor. The latch is attachable to a well tool which may be positioned and operated to latch and lock in and later be retrieved from the flow conductor using wireline or TFL pumpdown tools and methods. An expandable c-ring is utilized as the latching element for the latch device.

REFERENCES:
patent: 3074485 (1963-01-01), McGowen
patent: 3250331 (1966-05-01), Boyle
patent: 3664689 (1972-05-01), Hanes

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