Shaped charge with reactive material
Some implementations include an apparatus comprising an explosive material configured to detonate; a liner in contact with the explosive material, the liner configured to, after detonation of the explosive material, form jets to perforate a tubular disposed in a subsurface borehole; a reactive material configured to release energy in response to detonation of the explosive material; and a case in contact with a portion of the reactive material and configured to surround the explosive material, the liner, and the reactive material.
1 . An apparatus comprising:
an explosive material configured to detonate;
a liner in contact with the explosive material, the liner configured to, after detonation of the explosive material, form jets to perforate a tubular disposed in a subsurface borehole;
a reactive material configured to release energy in response to detonation of the explosive material; and
a case with a conoidal shape in contact with the liner and a portion of the reactive material and configured to surround the explosive material, the liner, and the reactive material, wherein a thickness of the reactive material increases as the reactive material spans from an orifice at an apex of the conoidal shape substantially to a base of the conoidal shape.
2 . The apparatus of claim 1 , wherein the reactive material includes at least one material selected from the group consisting of rubber, polyethylene, and polytetrafluoroethylene.
3 . The apparatus of claim 1 , wherein the reactive material forms a layer in contact with an inner surface of the case.
4 . The apparatus of claim 3 , wherein the reactive material is tapered at one or more edges.
5 . A system comprising:
one or more shaped charges each including an explosive material configured to detonate,
a liner in contact with the explosive material, the liner configured to, after detonation of the explosive material, form jets to perforate a tubular disposed in a subsurface borehole,
a reactive material configured to release energy in response to detonation of the explosive material, and
a case with a conoidal shape in contact with the liner and a portion of the reactive material and configured to surround the explosive material, the liner, and the reactive material, wherein a thickness of the reactive material increases as the reactive material spans from an orifice at an apex of the conoidal shape substantially to a base of the conoidal shape; and
a perforation device configured to operate with the shaped charge to perforate the tubular in the subsurface borehole.
6 . The system of claim 5 , wherein the reactive material includes at least one material selected from the group consisting of rubber, polyethylene, and polytetrafluoroethylene.
7 . The system of claim 5 , wherein the reactive material forms a layer in contact with an inner surface of the case.
8 . The system of claim 7 , wherein the reactive material is tapered at one or more edges.
9 . A method comprising:
inserting one or more shaped charges into a tubular inside a borehole, each shaped charge including a reactive material configured to release energy in response to detonation of an explosive material in contact with the liner, wherein the reactive material is in contact with a case with a conoidal shape that is in contact with the liner, wherein the case surrounds the explosive material, the liner, and the reactive material, and wherein a thickness of the reactive material increases as the reactive material spans from an orifice at an apex of the conoidal shape substantially to a base of the conoidal shape; and
detonating the explosive material to perforate the tubular.
10 . The method of claim 9 , wherein the reactive material forms a layer in contact with an inner surface of the case.
11 . The system of claim 10 , wherein the reactive material is tapered at one or more edges.