Perforating apparatus

Details Perforating apparatus Perforating apparatus

1975-04-11

1976-04-20

Novosad, Stephen J.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Concave-shaped charge

102 24HC, E21B 43117

Patent

active

039512185

ABSTRACT:
In the representative embodiment of the present invention disclosed herein, shaped charges adapted for installation in a typical end-loaded carrier are respectively provided with a domed annular retainer member of a thin, but substantially rigid and stiff, material which is coaxially disposed over the forward end of each charge. A smaller-diameter externally-tapered sleeve of a somewhat yieldable or deformable material is cooperatively arranged for positioning on each domed retainer member once its associated shaped charge is installed in the carrier facing and aligned with a lateral port therein. Then, as a port plug having an internally-tapered recess is installed in the port and telescopically forced over the sleeve, the forward portion of the retainer sleeve will be laterally compressed for securing the shaped charge in position with little or no inward or axial deflection of the domed retainer.

REFERENCES:
patent: 2782715 (1957-02-01), Udry
patent: 2844098 (1958-07-01), Castel
patent: 2925775 (1960-02-01), McKee
patent: 3075462 (1963-01-01), Adamson, Jr.
patent: 3282354 (1966-11-01), Hakala et al.
patent: 3773119 (1973-11-01), Shore
patent: R28061 (1974-07-01), Shore

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