Cluster gun system
A method and apparatus for containing one or more shaped charges in a single plane, using a shaped charge housing containing a cluster of one or more shaped charges, with the apex ends facing each other, arrayed about the center axis of a gun body, and detonated from a single initiator located in the middle of the cluster of the one or more shaped charges, the shaped charge housing can be one of many shaped charge housings coupled together to perforate in a plurality of single planes.
1. An apparatus for containing a shaped charge comprising:
a first cylindrical half having a first thru hole with a center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a second cylindrical half having a second thru hole sharing the center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a threaded cylindrical interface at a protruding distal end of the first cylindrical half wherein the threaded cylindrical interface shares the center axis;
a contact retainer nut coupled to the threaded cylindrical interface;
a contact pin, having a substantially cylindrical shaped body and disposed partially within the second thru hole, protruding from the threaded cylindrical interface, and restrained by the retainer nut; and
wherein the first cylindrical half is coupled to the second cylindrical half.
2. The apparatus of claim 1 further comprising a spring located within the first thru hole and loading the contact pin against the retainer nut.
3. The apparatus of claim 2 further comprising a contact strap passing over the first cylindrical half and the second cylindrical half and coupling to the spring disposed within the second thru hole and covering a conical shaped end of the second cylindrical half.
4. The apparatus of claim 1 further comprising a booster holder, having a substantially cylindrical shaped body and disposed partially within the second thru hole of the second cylindrical half.
5. The apparatus of claim 1 wherein the at least one half conical cutout of the first cylindrical half combine with the at least one half conical cutout of the second cylindrical half to form at least one cutout adapted to contain a shaped charge oriented to perforate orthogonal to a center axis of a wellbore.
6. The apparatus of claim 5 wherein the at least one cutout is a plurality of cutouts arrayed to form a perforation plane orthogonal to the center axis of the wellbore.
7. An apparatus for containing a shaped charge comprising:
a first cylindrical half having a first thru hole with a center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a second cylindrical half having a second thru hole sharing the center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a threaded cylindrical interface at a protruding distal end of the first cylindrical half wherein the threaded cylindrical interface shares the center axis;
a contact retainer nut coupled to the threaded cylindrical interface;
a spring located within the first thru hole and loading a contact pin against the retainer nut; and
wherein the first cylindrical half is coupled to the second cylindrical half.
8. The apparatus of claim 7 further comprising the contact pin, having a substantially cylindrical shaped body and disposed partially within the first thru hole, protruding from the threaded cylindrical interface, and restrained by the retainer nut.
9. The apparatus of claim 7 further comprising a booster holder, having a substantially cylindrical shaped body and disposed partially within the second thru hole of the second cylindrical half.
10. The apparatus of claim 7 wherein the at least one half conical cutout of the first cylindrical half combine with the at least one half conical cutout of the second cylindrical half to form at least one cutout adapted to contain a shaped charge oriented to perforate orthogonal to a center axis of a wellbore.
11. The apparatus of claim 10 wherein the at least one cutout is a plurality of cutouts arrayed to form a perforation plane orthogonal to the center axis of the wellbore.
12. An apparatus for containing a shaped charge comprising:
a first cylindrical half having a first thru hole with a center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a second cylindrical half having a second thru hole sharing the center axis, first end, second end, and at least one half conical cutout arrayed about the center axis adapted to hold a shaped charge oriented to fire perpendicularly from the center axis;
a threaded cylindrical interface at a protruding distal end of the first cylindrical half wherein the threaded cylindrical interface has a common axis with the center axis;
a contact retainer nut coupled to the threaded cylindrical interface;
a spring located within the first thru hole and loading a contact pin against the retainer nut;
a contact strap passing over the first cylindrical half and the second cylindrical half and coupling to the spring disposed within the first thru hole and a conical shaped end of the second cylindrical half; and
wherein the first cylindrical half is coupled to the second cylindrical half.
13. The apparatus of claim 12 further comprising the contact pin, having a substantially cylindrical shaped body and disposed partially within the first thru hole, protruding from the threaded cylindrical interface, and restrained by the retainer nut.
14. The apparatus of claim 12 further comprising a booster holder, having a substantially cylindrical shaped body and disposed partially within the second thru hole of the second cylindrical half.
15. The apparatus of claim 12 wherein the at least one half conical cutout of the first cylindrical half combine with the at least one half conical cutout of the second cylindrical half to form at least one cutout adapted to contain a shaped charge oriented to perforate orthogonal to a center axis of a wellbore.
16. The apparatus of claim 15 wherein the at least one cutout is a plurality of cutouts arrayed to form a perforation plane orthogonal to the center axis of the wellbore.