Perforating gun with paired shaped charger vertically spaced

Details Perforating gun with paired shaped charger vertically spaced Perforating gun with paired shaped charger vertically spaced

1978-07-17

1980-03-18

Purser, Ernest R.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Concave-shaped charge

102 216, 175 451, 175 457, 102 20, E21B 43117

Patent

active

041934601

ABSTRACT:
A perforating gun for perforating earth formations, primarily in oil and gas wells. The gun includes a straight metal tube in which explosive jet charges are carried. A mounting apparatus within the tube holds the charges in pairs, the pairs being spaced vertically from each other. The charges within a pair point in the same general direction. The axis of each charge within a pair lies in a common horizontal plane with the axis of the other charge in the pair. The gun is operable with a decentralizer that places it in contact with the casing wall for firing. An alignment device within the gun assures that the charges are all pointing toward the nearest wall.

REFERENCES:
patent: 2984307 (1961-05-01), Barnes
patent: 3013491 (1961-12-01), Poulter
patent: 3089416 (1963-05-01), Gilbert
patent: 3101051 (1963-08-01), Gilbert
patent: 3415321 (1968-12-01), Venghiattis
patent: 3739723 (1973-06-01), Hakala
patent: 4011815 (1977-03-01), Garcia

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