Electromagnetic formed shaped charge liners
A perforating apparatus according to one or more aspects of the present disclosure comprises a carrier adapted to be deployed in a wellbore; a shaped explosive charge mounted on the carrier, the shaped charge comprising an explosive disposed inside of a case; and a conically shaped liner having an apex and a base disposed with the explosive in the case, the liner comprising an electromagnetically formed portion. The electromagnetically formed portion may comprise a thickness at the apex that is different from a thickness at the base.
1. A shaped charge, comprising;
a liner having a portion formed by electromagnetic compaction, the electromagnetic compaction formed portion comprising:
a first portion having a slot; and
a second portion having a slot, wherein the slot of the second portion and the slot of the first portion are angularly offset from one another.
2. The shaped charge of claim 1 , wherein the electromagnetic compaction formed portion comprises a metal foil.
3. The shaped charge of claim 1 , wherein the electromagnetic compaction formed portion comprises an apex having a thickness greater than a thickness of a base of the liner.
4. The shaped charge of claim 1 , wherein the electromagnetic compaction formed portion comprises an apex having a thickness less than a thickness of a base section.
5. The shaped charge of claim 1 , wherein one of the first portion and the second portion defines a hole at an apex of the liner.
6. The shaped charge of claim 1 , wherein the thickness of the first portion is about 0.001 to 0.003 inches.
7. The shaped charge of claim 1 , wherein:
the thickness of the first portion is about 0.001 to 0.003 inches; and
the thickness of the second portion is about 0.001 to 0.003 inches.
8. A perforating apparatus, the apparatus comprising:
a carrier adapted to be deployed in a wellbore;
a shaped explosive charge mounted on the carrier, the shaped charge comprising an explosive disposed inside of a case; and
a conically shaped liner having an apex and a base disposed with the explosive in the case, the liner comprising a portion formed by electromagnetic compaction, the electromagnetic compaction formed portion comprising:
a first portion having a slot; and
a second portion having a slot, wherein the slot of the second portion and the slot of the first portion are angularly offset from one another.
9. The apparatus of claim 8 , wherein the electromagnetic compaction formed portion comprises a thickness at the apex that is different from a thickness at the base.
10. The apparatus of claim 8 , wherein each of the first portion and the second portion comprises a metal foil.
11. The apparatus of claim 8 , wherein the thickness of the first portion is about 0.001 to 0.003 inches.
12. The apparatus of claim 8 , wherein:
the thickness of the first portion is about 0.001 to 0.003 inches; and
the thickness of the second portion is about 0.001 to 0.003 inches.