Retrieving tool for wellhead packing

Details Retrieving tool for wellhead packing Retrieving tool for wellhead packing

1974-06-03

1976-03-16

Blunk, Evon C.

Handling: hand and hoist-line implements

Grapple

Well type

294 8615, 294 8618, 294 8624, 294 8634, E21B 3102

Patent

active

039442730

ABSTRACT:
A retrieving tool has resilient fingers engageable with a pulling collar of the actuator ring of a wedge locked underwater wellhead packing to release the lock and the packing for retrieval from the wellhead. The retrieving tool has a body connected to a running pipe string and provided with washing ports. In one form the resilient fingers are releasable from the pulling collar in response to fluid pressure supplied through the running string.

REFERENCES:
patent: 1757363 (1930-05-01), Fischbach
patent: 1917135 (1933-07-01), Littell
patent: 2232949 (1941-02-01), Jones et al.
patent: 2243419 (1941-05-01), Festervan et al.
patent: 2804927 (1957-09-01), Hall
patent: 3150718 (1964-09-01), Crowe
patent: 3208788 (1965-09-01), Roark
patent: 3352593 (1967-11-01), Webb
patent: 3698756 (1972-10-01), Groves

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