Perforating gun for wells

Details Perforating gun for wells Perforating gun for wells

E - Fixed Constructions

21

B

166/12

E21B 43/117 (2006.01)

Patent

CA 1105374

Abstract of the Disclosure 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.

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