Low debris perforating gun system for oriented perforating
Disclosed herein is a reinforcing system for a shaped charge assembly for use in a perforating gun. The shaped charge assembly includes a shaped charge combined with a longitudinal reinforcing system extending along a portion of a perforating gun barrel. The reinforcing system comprises a spine with a recess formed to receive the shaped charge of a perforating gun. The reinforcing system further comprises a compression zone coaxially disposed around a portion of the shaped charge. The compression zone is formed between a bushing and a retaining shell that also coaxially circumscribe a portion of the shaped charge and on one of their respective ends connect to the spine.
1. A shaped charge reinforcing system comprising:
a shaped charge having a casing with an open end and a base;
a reinforcing buttress;
a recess on said reinforcing buttress formed to receive the base of the casing of the shaped charge;
a shock absorbing collar seated on said reinforcing buttress formed to coaxially circumscribe at least a portion of the casing;
a supporting structure comprising, a bushing in coaxial cooperation with at least a portion of the outer surface of the casing; and a retaining shell coaxially circumscribing said bushing; and, wherein an annular void is formed between the outer radius of said bushing and the inner radius of said retaining shell, wherein the annular void receives a shock absorbing material.
2. The reinforcing system of claim 1 , wherein said shock absorbing material is selected from the group consisting of rubber, foam, cotton, cork, and mixtures thereof.
3. The reinforcing system of claim 1 , wherein said shock absorbing material is comprised of a corrugated element.
4. The reinforcing system of claim 1 , further comprising a space within said casing capable of receiving an amount of explosive.
5. The reinforcing system of claim 1 wherein said casing is formed into a generally tubular shape.
6. The reinforcing system of claim 4 , wherein said reinforcing system is capable of retaining substantially all casing fragments produced during detonation of the explosive.
7. The reinforcing system of claim 1 further comprising at least one other shaped charge.
8. The reinforcing system of claim 1 further comprising a gun body, wherein the presence of said reinforcing buttress and said casing produce an asymmetric radial weight distribution around the axis of the gun body.