Method and apparatus for establishing communication with a downh

Details Method and apparatus for establishing communication with a downh Method and apparatus for establishing communication with a downh

1989-10-17

1991-01-01

Kisliuk, Bruce M.

Wells

Processes

Destroying or dissolving well part

166 551, 166 553, 166298, E21B 2900

Patent

active

049811770

ABSTRACT:
A downhole tool, such as a safety valve or a stand-alone nipple, has a tubular housing. An axially extending bore is provided in the wall of the housing. A radially extending recess is provided in the internal bore wall of the housing, encompassing the axially extending bore, and a control fluid pipe is passed through the bore and the recess. A cutting tool is mounted for radial movements in the recess and is actuated by downward jarring forces imparted by an auxiliary tool. The control pipe is severed by the cutting element and the lower severed end portion of the control pipe is concurrently crimped to close such end portion.

REFERENCES:
patent: 2794619 (1957-06-01), Lawrence et al.
patent: 3696868 (1972-10-01), Taylor, Jr.
patent: 3763932 (1973-10-01), Dinning
patent: 3799258 (1974-03-01), Tausch
patent: 3882935 (1975-05-01), Calhoun
patent: 4284141 (1981-08-01), Mott
patent: 4503913 (1985-03-01), Carmody
patent: 4512411 (1985-04-01), Pringle
patent: 4534414 (1985-08-01), Pringle
patent: 4660635 (1987-04-01), Wittrisch
patent: 4796705 (1989-01-01), Carmody et al.

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