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公开(公告)号：US12072170B2
公开(公告)日：2024-08-27
申请号：US17793685
申请日：2020-01-21
Applicant: SAAB AB
Inventor： Victor Björkgren
Abstract: A shaped charge assembly, comprising a casing and a liner, is disclosed. The liner includes a first longitudinal section connected to the casing, a second longitudinal section having the shape of a truncated cone wherein the truncated end thereof is directly connected, or connected by means of an intermediate longitudinal section, to the first longitudinal section. The second longitudinal section is at its base end directly connected to a third longitudinal section. The third longitudinal section is in the shape of a cone, an ogival or a hemisphere.
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公开(公告)号：US12025414B2
公开(公告)日：2024-07-02
申请号：US18316616
申请日：2023-05-12
Applicant: Vanderbilt University , The United States of America as Represented by the Secretary of the Army
Inventor： Kevin C. Galloway , Kelsay E. Neely , Aimee J. Valles , Robert J. Clark , Jesse L. Frederick
Abstract: Shaped charge devices, systems, and related methods of use. A housing sheet is configurable to form at least part of a shaped charge enclosure enclosing a shaped charge and biasing an explosion in a desired direction. The housing sheet can include one or more incisions in at least one surface thereof. The housing sheet can have at least one connection mechanism integrally formed therein, and the housing sheet can be configurable to form a plurality of sizes of shaped charge housing portions. The housing sheet can also provide for forming a plurality of dimensions of the shaped charge enclosure.
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公开(公告)号：US11753909B2
公开(公告)日：2023-09-12
申请号：US17336617
申请日：2021-06-02
Applicant: DynaEnergetics Europe GmbH
Inventor： Joern Olaf Loehken , Denis Will , Bernd Fricke , Atakan Sever
IPC: E21B43/117 , E21B43/26 , F42B1/028 , E21B43/119 , F42B3/08
CPC classification number: E21B43/117 , E21B43/119 , E21B43/26 , F42B1/028 , F42B3/08
Abstract: According to some embodiments, a shaped charge inlay includes 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. The perforation holes formed by shaped charges having the shaped charge inlay may have geometries that include constant open areas to flow in the target when the perforating gun is centralized or decentralized in a wellbore casing.
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公开(公告)号：US11719516B2
公开(公告)日：2023-08-08
申请号：US17287191
申请日：2019-10-20
Applicant: Moon-Jong Kwon
Inventor： Moon-Jong Kwon
Abstract: Liners (150), fittings (11-22), and spacers (23-25) are provided to assemble the jet (170) units, which work as explosives (110) and detonators (120) to form stand-off distance and air-deck (140) space. The liners (150) release jets (170) and the fittings (11-22) and spacers (23-25) are designed to attach the liner (150) firmly to the explosives (110), inducing the cavity effect. The objective of the present invention is to provide a blasting method using a jet (170) unit to overcome the limits of sympathetic detonation, applying a mechanism that is ideal according to the analysis of observations in blast-hole (100) blasting. The application of jet (170) units for jet (170) detonation in blast-hole (100) blasting overcomes the performance limits of explosives (110) manufacturing and the conceptual limits of detonators (120) functionalities and improves the channel effect, dead pressing, loss of power, and stopping of detonation etc. Particularly, the application of controlled blasting and air-decking can be carried out without restriction while maintaining the safety of the slurry or emulsion explosives (110).
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公开(公告)号：US11702912B2
公开(公告)日：2023-07-18
申请号：US17229093
申请日：2021-04-13
Applicant: QINETIQ LIMITED
IPC: E21B43/117 , F42B1/036 , F42B1/028
CPC classification number: E21B43/117 , F42B1/028 , F42B1/036
Abstract: Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.
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Patent Agency Ranking
公开(公告)号：US11692797B2
公开(公告)日：2023-07-04
申请号：US17603996
申请日：2020-04-15
Applicant: Enig Associates, Inc.
Inventor： Yil-Bong Kim , Eric N. Enig
Abstract: An explosive device composed of an auxiliary flux compression generator operating to produce a high intensity magnetic field to seed a primary flux compression generator The auxiliary flux compression generator has a first section with a magnetic field supplied by a cylindrical permanent magnet array, the first section is composed of a helical winding having a prescribed pattern configured to convert explosive energy into magnetic energy that will be used as seed magnetic field for the primary flux compression generator.
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公开(公告)号：US20220290960A1
公开(公告)日：2022-09-15
申请号：US17654336
申请日：2022-03-10
Applicant: Schlumberger Technology Corporation
Inventor： Andrew Prisbell , Atsushi Nakano , Terry Butler
IPC: F42D1/02 , E21B43/117 , E21B43/119 , F42D1/04 , F42B1/028
Abstract: A charge canister for a perforation tool has a cylindrical body with an expansion portion extending along a radius of the cylindrical body, the expansion portion having a narrow portion at a first end of the expansion portion and a wide portion at a second end of the expansion portion opposite from the first end. An explosive material is disposed within the expansion portion in direct contact with an interior surface thereof.
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公开(公告)号：US20220170721A1
公开(公告)日：2022-06-02
申请号：US17675073
申请日：2022-02-18
Applicant: P3D Solutions, Inc.
Inventor： Justin Green , Eirik Nytro
Abstract: A compact energetic-breaching apparatus is provided. The compact energetic-breaching apparatus is configured to receive energetic materials for use in energetic breaching. The compact energetic-breaching apparatus may comprise a housing body with a receptacle to receive energetic materials. The compact energetic-breaching apparatus may further comprise a tamping material. The compact energetic-breaching apparatus may further comprise a metal liner which collapses upon detonation to form a cutting jet.
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公开(公告)号：US20220074719A1
公开(公告)日：2022-03-10
申请号：US17189366
申请日：2021-03-02
Applicant: GEODYNAMICS, INC.
Inventor： Wenbo YANG
IPC: F42B3/22 , F42B1/036 , F42B1/028 , E21B43/117
Abstract: A shaped charge is configured to make a non-circular perforation into a casing. The shaped charge includes a case having a side wall that extends between an open top region and a base; an asymmetric initiation insert configured to fit within the case; an explosive material placed over the asymmetric initiation insert and in contact with the side wall of the case; and a liner placed over the explosive material, to hold the explosive material within the case. The asymmetric initiation insert has a body that includes first and second channels that extend from a bottom surface to a top surface of the body, so that a detonation at the bottom surface is directed to first and second initiation points, that correspond to the first and second channels.
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公开(公告)号：US11255646B2
公开(公告)日：2022-02-22
申请号：US16906815
申请日：2020-06-19
Applicant: P3D Solutions, Inc.
Inventor： Justin Green , Eirik Nytro
Abstract: A compact energetic-breaching apparatus is provided. The compact energetic-breaching apparatus is configured to receive energetic materials for use in energetic breaching. The compact energetic-breaching apparatus may comprise a housing body with a receptacle to receive energetic materials. The compact energetic-breaching apparatus may further comprise a tamping material. The compact energetic-breaching apparatus may further comprise a metal liner which collapses upon detonation to form a cutting jet.
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