Well perforation device

Details Well perforation device Well perforation device

1982-06-23

1988-09-06

Suchfield, George A.

Boring or penetrating the earth

Bit or bit element

Plural separable cutter elements

166 55, E21B 4316

Patent

active

047685972

ABSTRACT:
The invention relates to a well perforation device comprising a support (25) and encapsulated shaped charges (26) fixed unidirectionally on this support, usually on the back side of a support bar whose front side is to be applied against the casing. Positioning rings (35, 36) are snapped onto the charges (26) at regular intervals along the support (25). These rings have a rounded external surface on which the perforation device can swivel up to a correct balanced position for which the front sides of the charges are applied against the casing (13).

REFERENCES:
patent: 2833213 (1958-05-01), Udry
patent: 2947251 (1960-08-01), Jilly
patent: 3365032 (1967-02-01), Schuster et al.
patent: 4153118 (1979-05-01), Hart
patent: 4273047 (1981-06-01), Rommer

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