Perforating gun
A perforating gun used in oil and gas completions operations. A gun string including the perforating gun and one or more additional perforating guns substantially identical to the perforating gun.
1 . A perforating gun, comprising:
a carrier tube;
a first body from which the carrier tube extends, the first body defining:
a first recess; and
a first internal bore extending through the first body from the first recess;
a first feedthrough extending within the first internal bore;
a second body from which the carrier tube extends, opposite the first body, the second body defining:
a second recess; and
a second internal bore extending through the second body from the second recess;
a second feedthrough extending within the second internal bore; and
a charge cartridge containing one or more perforating charges and extending within the carrier tube, the charge cartridge comprising:
a charge container;
a first cap assembly secured to the charge container, the first cap assembly comprising:
a first end cap via which the first cap assembly is secured to the charge container, the first end cap extending:
at a first end portion of the charge cartridge; and
within the first recess defined in the first body from which the carrier tube extends;
and
a first contact conductor also secured to the charge container, via the first end cap, and axially aligned with the first feedthrough extending within the first internal bore;
and
a second cap assembly secured to the charge container, opposite the first cap assembly, the second cap assembly comprising:
a second end cap via which the second cap assembly is secured to the charge container, the second end cap extending at a second end portion of the charge cartridge, opposite the first end cap; and
a second contact conductor also secured to the charge container, via the second end cap, and axially aligned with:
the first contact conductor associated with the first end cap; and
the second feedthrough extending within the second internal bore;
wherein electricity is communicable:
via the first feedthrough and the first contact conductor to facilitate detonation of the one or more perforating charges contained within the charge cartridge; and
via the second feedthrough and the second contact conductor.
2 . The perforating gun of claim 1 , wherein the charge cartridge contains an addressable switch.
3 . The perforating gun of claim 1 , wherein the charge container comprises a charge tube to which the first and second end caps are coupled; and
wherein:
the first end cap is decouplable from the charge tube; and
the second end cap is decouplable from the charge tube.
4 . The perforating gun of claim 1 , wherein:
the first body is a first sub body;
the perforating gun further comprises a first tandem sub;
the first tandem sub includes the first sub body and the first feedthrough;
the second body is a second sub body;
the perforating gun further comprises a second tandem sub; and
the second tandem sub includes the second sub body and the second feedthrough.
5 . The perforating gun of claim 1 , wherein the charge container comprises a charge tube to which the first and second end caps are coupled; and
wherein the charge tube extends within:
the first recess defined in the first body; and/or
the second recess defined in the second body.