Well penetration apparatus and method

Details Well penetration apparatus and method Well penetration apparatus and method

1985-04-09

1987-02-03

Leppink, James A.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

166 553, 166223, 166383, 175 62, 175 67, 175 78, 175 79, E21B 43112, E21B 718

Patent

active

046403620

ABSTRACT:
A well casing penetrator includes an elongated housing enclosing an outwardly movable hydraulic driven punch for cutting an opening in a casing. A high pressure liquid jet nozzle is mounted on the end of a hose which moves outwardly through an axial bore in the punch when extended through the casing to cut a radially extending opening in the surrounding earth. The punch includes longitudinal slots along opposite sides which cause tabs to be bent back along opposite sides of the opening cut in the casing to prevent dislodging of any portion of the casing from the casing as a consequence of the operation of the punch.

REFERENCES:
patent: 2426106 (1947-08-01), Kinley
patent: 2457277 (1948-12-01), Schlumberger
patent: 2539047 (1951-01-01), Arutunoff
patent: 3301337 (1967-01-01), Vaughn et al.
patent: 3720262 (1973-03-01), Grable

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