Inlay for shaped charge and method of use
AssigneeDynaEnergetics GmbH & Co. KG
InventorsJoern Olaf Loehken, Denis Will, Bernd Fricke
Life of this patent
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Abstract
According to some embodiments, a shaped charge inlay may include an upper edge that extends inward and horizontal to an edge of a shaped charge casing associated with a shaped charge. The shaped charge includes an existing liner and the shaped charge inlay further includes a body that extends inward toward an apex of the existing liner. The shaped charge inlay may be disposed above the existing liner in the shaped charge, to disrupt collapse of the existing liner upon detonation of the shaped charge and thereby change the geometry of a perforating jet and resulting perforation created by the shaped charge.
Claims17
A shaped charge inlay to cover a portion of an inner surface of a conical shaped charge liner, the shaped charge inlay comprising:
- a continuous ring comprising two or more fingers extending from the continuous ring, each finger being spaced apart from each other and comprising an upper edge and a distal edge, the upper edge depending from the continuous ring and the distal edge being spaced apart from the upper edge, wherein
- the fingers are shaped to adapt to a shape of the shaped charge liner,
- the distal edges of the fingers are spaced apart from each other, such that the inlay comprises an open apex,
- at least one of the continuous ring and the upper edge of the fingers is configured to be secured to an upper edge of the shaped charge liner, and
- wherein the shaped charge inlay is configured to transform a perforating jet to create a slotted perforation hole geometry.
A shaped charge inlay comprising:
- a continuous ring;
- and
- two or more fingers extending from the continuous ring, wherein the fingers comprise an upper edge extending from the continuous ring and a distal edge spaced apart from the upper edge, wherein the distal edges of the fingers are spaced apart from each other such that the inlay comprises an open apex, wherein
- at least one of the continuous ring and the upper edge is configured for being coupled to an upper edge of a conical shaped charge liner,
- the fingers are contoured to adapt to a shape of the shaped charge liner, and
- the shaped charge inlay is configured to transform a perforating jet to create a slotted perforation hole geometry.
A method of changing a perforating jet geometry of a shaped charge, comprising:
- inserting a shaped charge inlay into a shaped charge comprising an explosive load and a conical shaped charge liner adjacent the explosive load, wherein
- the shaped charge inlay comprises a continuous ring and two or more fingers extending from the continuous ring, wherein each of the fingers comprise an upper edge depending from the continuous ring and a distal edge spaced apart from the upper edge, wherein the distal edges are spaced apart from each other such that the inlay comprises an open apex, and the fingers are contoured to adapt to a shape of the liner, and
- at least one of the continuous ring and the upper edge of the fingers is coupled to the upper edge of the conical shaped charge liner;
- and
- detonating the shaped charge to form a perforating jet and transform the perforating jet to produce a slotted perforation hole geometry in a target.
Dependencies are inferred from the claim text.