Wells – Grapple and well anchored lifting means
Patent
1991-08-23
1993-07-20
Dang, Hoang C.
Wells
Grapple and well anchored lifting means
166 664, 166301, 294 8618, E21B 3100
Patent
active
052285073
ABSTRACT:
In wireline operations, it is known to retrieve objects stuck in a well bore by application of a retrieving force applied to the object through the wireline and a wireline pulling tool attached to the wireline and engaged with the object. The present invention provides a wireline retrieving tool which is adapted to apply a large retrieving force on a pulling tool engaged with an object in the well bore without having that force transmitted directly through the wireline. The retrieving tool is adapted to be lowered into the well bore on the wireline to a position where the pulling tool engages the stuck object. Slips carried on in the tool then anchor the tool against the tubular casing or tubing of the well bore and a controlled retrieving force generated in the tool by an electric motor and hydraulic pump is applied between the casing or tubing and the pulling tool to dislodge the object.
REFERENCES:
patent: 2337249 (1945-01-01), Lawrence
patent: 2537413 (1946-11-01), Lawrence
patent: 2829716 (1958-04-01), Stewart
patent: 2978030 (1961-04-01), Green et al.
patent: 3016954 (1962-01-01), Crowell
patent: 3105547 (1963-10-01), Ownby
patent: 3105550 (1963-10-01), Ehlert
patent: 3134441 (1964-05-01), Barry et al.
patent: 3147809 (1964-09-01), Thomas
patent: 3211222 (1965-10-01), Myers
patent: 4762175 (1988-08-01), Perricone
Obrejanu Marcel
Weiler David H.
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